Editorial and product review team
JW Tool Box publishes hands-on guides tied directly to the site's browser-based tools. Content is updated when browser behavior, platform rules, or product requirements change in ways that affect real workflows. The goal is to provide practical instructions, tested defaults, and trustworthy reference content instead of thin keyword filler.
Maintains the JW Tool Box codebase, validates major workflows in current browsers, and reviews article updates against the live tool behavior and current platform requirements.
Die kurze Antwort: Bei einem Bruttogehalt von 75.000 Dollar zahlt ein Alleinstehender in den USA rund 7.949 Dollar Federal Income Tax — das sind 10,6 Prozent des Bruttogehalts. Dazu kommen FICA (7,65 Prozent) und je nach Bundesstaat noch State Tax. Genau diese drei Blöcke werden auf dieser Seite getrennt durchgerechnet. Die drei Blöcke, die vom Bruttogehalt abgehen Ein US-Arbeitgeber führt nic…
To convert a transparent PNG to JPG with a white background, open the Image Resizer, upload the PNG, choose JPEG, then select Resize & convert and Download result. The converter places white behind transparent pixels before creating the JPG. Keep PNG or WebP if the finished image must remain transparent. Why a Transparent Background Can Turn Black PNG can store transparency: a pixel may be com…
To try to reduce an image below 200 KB, use the Image Compressor, choose a suitable maximum width and JPEG quality, then measure the downloaded image (or extract it from the ZIP when processing a batch). Manual mode uses your chosen dimensions and quality. The optional Try under 200 KB per image mode searches lower settings and reports whether each output fits. Check the receiving site's minim…
To try to compress a PDF under 2 MB, open the PDF Compressor, choose Balanced, download the result and check its actual file size. If it remains too large, retry a stronger preset from the original file. The tool does not offer an exact “2 MB” target or guarantee that every PDF will fit. Keep the original. This compressor renders each page to a JPEG and rebuilds a PDF. Selectable text, interac…
If HEIC to JPG conversion fails, try one original image before retrying the entire batch. Check whether that original opens in a trusted image application. A .heic extension can pass the file picker without proving the file contains a decodable HEIC image. This guide covers diagnosis. Use the first-file walkthrough for normal conversion and the batch guide for queue and ZIP management. What we…
TL;DR — Looking for a specific amount? Scan the chart below. Need cents or an unusual amount? Use the free Amount to Words Converter to generate the exact written line in one click — no sign-up, runs in your browser. Writing a check and staring at the "Amount in words" line? Here is a chart of the most commonly written USD amounts, shown in a consistent format: dollar words, a two-digit cents…
Respuesta rápida — Para la línea de monto en inglés, usa palabras para los dólares y una fracción para los centavos: $12,000.00 → Twelve Thousand and 00/100 Dollars. El conversor de montos USD a letras en inglés genera el resultado en este navegador, sin registro. Si tu cheque en dólares tiene una línea para el monto en palabras, estos ejemplos te ayudan a completarla en inglés. Antes de entre…
TL;DR — A check has six fields: date → payee → amount box → amount in words → memo → signature. Keep the written amount and numeric box consistent. When in doubt, generate it with the free Amount to Words Converter. Personal checks still show up for rent, deposits, tuition, and gifts — and a filled-out check with a mismatched or sloppy amount line is one of the fastest ways to get it rejected…
TL;DR — Para saber qué fecha será en 2 años y 320 días, primero suma los 2 años a la fecha de hoy y luego cuenta 320 días naturales desde esa nueva fecha. Con la Calculadora de Fechas obtienes el resultado exacto en un segundo, con años bisiestos resueltos automáticamente. Preguntarse qué pasará en 2 años y 320 días es, en el fondo, una pregunta de una sola respuesta: ¿qué fecha exacta corresp…
TL;DR — Der kostenlose Taschenrechner online rechnet direkt im Browser: Grundrechenarten, Prozent, Klammern, wissenschaftliche Funktionen und Verlauf. Kein Download, keine Anmeldung. Suchst du einen Taschenrechner online, der mehr kann als vier Grundrechenarten — und der sofort funktioniert, ohne dass du eine App installierst? Auf dieser Seite siehst du, was ein wissenschaftlicher Online-Rechn…
If you only need the answer, use this favicon size set for most modern sites: 16x16 and 32x32 inside favicon.ico, a 32x32 PNG for crisp browser tabs, a 180x180 Apple Touch Icon, a 192x192 PWA icon, and a 512x512 PWA icon. In the early web, a single favicon.ico file was enough. Today that is only the fallback layer. Modern sites usually need a small browser-tab icon, a few PNG assets for higher…
Need a quick calculation without hunting for the calculator app or opening a spreadsheet? Use the Free Online Calculator in your browser. It processes calculations locally and does not upload the numbers you enter to JW Tool Box; the site separately collects usage information as described in the Privacy Policy. The calculator built into your operating system is often too cramped, while a full…
Need a countdown that starts in seconds, without installing an app or creating an account? Use the Online Countdown Timer — it runs right in your browser, shows a large progress ring, and works offline. Most people open the timer on their phone and discover the screen turns off, the alarm is buried, or they waste time finding the right mode. A browser countdown fixes all of that: open it, choo…
For $1,500.75, write One Thousand Five Hundred and 75/100 Dollars on a US check's amount line. Write 1,500.75 in the numeric box. The two fields should represent exactly the same amount. Generate your own written amount, or follow the handwriting steps below. This guide focuses on the amount line; the six-field walkthrough covers the rest of the check. Write the Amount Line in Four Steps 1. Sp…
If you searched for "minimal valid favicon.ico hex bytes" or "smallest favicon.ico file", you're in the right place. This post gives you copy-paste answers, not theory. Quick answer: A minimal valid favicon.ico needs an ICO header (6 bytes), one image directory entry (16 bytes), and a valid BMP or PNG payload. The absolute smallest working file is around 70 bytes for a 1×1 pixel ICO. Why You'r…
Favicons have evolved. The classic favicon.ico is still required, but modern browsers now support SVG favicons — which means your icon can be vector-sharp at any size, automatically adapt to dark mode, and weigh less than 1 KB. This guide covers everything you need for 2026. Why Use an SVG Favicon? Format Resolution Dark Mode File Size Browser Support .ico (16×16) Fixed ❌ ~1–4 KB All browsers
If you are trying to open a HEIC file on Windows, the file is usually not broken. Windows just does not handle HEIC as smoothly as JPG or PNG, especially on older installs, locked-down work laptops, or upload forms that reject anything outside older image formats. TL;DR - If you only need to look at one image, install HEIF support and test preview first. If you need to upload, email, print, or…
A PDF binder combines several PDFs into one ordered document. To assemble a cover, invoice and receipts, use PDF Merge, arrange the files with the up/down buttons and download one PDF. Each source file can be up to 15 MB. Individual-page editing uses a separate tool. TL;DR - Use the PDF Merge Tool as a browser-based PDF binder. Add your files, reorder them, export one combined PDF, and keep th…
TL;DR - The Common App personal essay is typically 250 to 650 words, while supplemental essays often land around 100 to 250 words. Use a live Word Counter while drafting, then compare cuts with the Text Diff Checker so you trim repetition instead of deleting the part that makes the essay sound like you. If you are searching for the right college essay word count, you usually do not have a writ…
To write $242.05 on a US check, use Two Hundred Forty-Two and 05/100 Dollars. The 05 means five cents, and the /100 means hundredths of a dollar. Put 242.05 in the numeric amount box. Convert your dollar amount and choose Check Line. This guide focuses on cents, zero-dollar amounts and rounding. For whole-number spelling, use the written-amount guide. The Cents Formula [whole dollars in words]…
If you are searching for a minimal valid favicon.ico, you usually do not want a full design-system discussion. You want the smallest setup that still works without breaking browser fallbacks. That is a narrower problem than a normal favicon guide, and the answer is also narrower: a tiny fallback can be valid, but it is not a complete favicon strategy. TL;DR — A minimal favicon setup can be as…
TL;DR - Use UPC-A or EAN-13 for retail unit products, ITF-14 for outer cartons and case packs, and CODE128 for internal operations. If you just need to generate and test the artwork, start with the Barcode Generator. If the code will be used in retail, make sure the underlying number is valid for that sales channel. If you are searching for a product barcode generator, you probably do not need…
TL;DR - If your starting date is April 11, 2026, then 90 days later is July 10, 2026. Instead of counting month by month every time, use the Days Calculator to add 30, 45, 60, or 90 days to any date instantly. If you are searching for what date is 90 days from today, you usually do not need calendar theory. You need the answer fast because a deadline depends on it. That deadline might be: a co…
You have a 30-page PDF from your professor, your accountant, or your mortgage broker. You need to pull out a few pages as images—maybe to paste into a slide deck, upload to a form that only takes JPG, or just to share a single page in a group chat without sending the entire document. So you Google "convert PDF to JPG" and pick the first result. You upload your file. You wait. The site offers y…
In 2012, the antivirus pioneer John McAfee was on the run in Belize. Vice magazine published an exclusive interview with him—along with a photo. The photo's EXIF data included GPS coordinates that pinpointed his exact location. He was found, arrested, and deported within 48 hours. You are probably not a fugitive. But the metadata embedded in your photos can still reveal more about you than you…
Inlining a favicon with Base64 is one of those optimizations that can be useful in the right place and pointless in the wrong one. It is not a universal requirement, but it can be a clean way to remove one small request for a tiny fallback icon. The important part is understanding what to inline and what not to inline. What a Base64 Favicon Is Base64 encoding turns binary data into text. For f…
You are 20 minutes into viewing a crucial company-wide all-hands meeting on Google Meet. You haven't touched your mouse because you're just listening. Suddenly, your screen dims. A few seconds later, it goes completely black, your computer locks, and your audio cuts out. Working from home usually means dealing with aggressive corporate IT security policies that enforce a strict 5-minute screen…
Use the HEIC converter when several photos need the same JPG or PNG output settings. The current queue holds at most 30 files, converts them sequentially and packages the results into one ZIP. For your first photo, use the single-file walkthrough. Prepare the batch before selecting files Give different source images different base filenames. For example, receipt-front.heic and receipt-back.hei…
Use the JavaScript Regex Tester to inspect matched text, its index and numbered capture groups. This guide focuses on debugging behavior and browser limits. For your first test, use the basic regex walkthrough. Start with a small, reproducible example Enter the pattern without surrounding / characters. For an invoice identifier, use: regex
We've all done it. You have a messy, minified JSON response or a chaotic SQL query, and you search for "online json formatter", "beautify mysql query", or "mysql formatter". You paste your code into the first result, get the clean output, and move on. But have you ever stopped to ask: Where did my data just go? The Server-Side Trap Most older online tools work by sending your data to their bac…
Losing a receipt for a work expense or reimbursement is a common headache. The thermal paper faded, you misplaced the slip, or the merchant never gave you one. When the purchase really happened, a replacement record can keep your expense report and your own books complete. A replacement record documents a real transaction. It is not a substitute for the merchant's original, and it should never…
TL;DR — College essay: 500–650 words. SEO blog post: 1,500–2,500. Novel: 70,000–100,000. Check your current count with the Word Counter → In 2026, the algorithm rewards depth, and literary agents automatically reject manuscripts that don't fit market molds. So exactly how long should your writing be? Whether you are trying to rank an SEO blog post without looking like an AI content farm, draft…
Your YouTube thumbnail is the single most important factor in whether someone clicks your video—more than the title, more than your subscriber count. A bad thumbnail means no watch time, no growth, no algorithm boost. TL;DR — The ideal YouTube thumbnail is 1280×720 pixels, 16:9 aspect ratio, under 2 MB, in JPG or PNG format. Keep key text and faces within the center 80% of the frame to avoid Y…
Learning Chinese? Struggling to pronounce unfamiliar characters? Our Pinyin Converter transforms Chinese text into phonetic pinyin instantly—helping you read, speak, and understand Mandarin faster. Why Pinyin Matters for Chinese Learners Pinyin (拼音, literally "spell sound") is the official romanization system for Mandarin Chinese. It's the bridge between Chinese characters and pronunciation. 1…
Running a small business or freelancing? You need to provide receipts to customers—but buying expensive accounting software feels like overkill when you only need a simple receipt. Good news: You don't need QuickBooks or FreshBooks for basic receipts. Use our Receipt Maker to create professional receipts in seconds—completely free, no signup required. Why Every Small Business Needs Receipts Re…
If you've ever copied SQL code from a production database or received an unformatted query from a colleague, you know the pain: a single line of text stretching hundreds of characters, impossible to debug or understand. Stop squinting at messy SQL. Use our SQL Formatter to beautify queries in seconds—completely free, no signup required. Why SQL Formatting Matters Clean, well-formatted SQL isn'…
The correct Instagram Reel cover size in 2026 is 1080×1920 px in a 9:16 vertical frame. The part that causes mistakes is the profile grid: Instagram shows a center 1080×1350 px safe zone, so text, faces, and logos near the very top or bottom can be cropped. If your Reel cover looks great in preview but gets awkwardly cropped in your profile grid, this guide gives you the exact dimensions and a…
Working from home? Nothing kills your flow faster than your screen going dark in the middle of a Zoom call, a client demo, or while monitoring your work dashboard. Stop fighting with power settings. Use our Keep Screen On tool to prevent sleep mode with one click—no software installation, no admin privileges required. Quick answer: open Keep Screen On in a browser tab and press start before yo…
QR codes should be boring, predictable, and safe. The problem is many online generators track scans or inject redirects that break months later. Here’s a short, field-tested workflow to create static QR codes that never expire and scan them without handing your data to anyone. When to use a static QR code Menus, posters, flyers, packaging Event check-in or quick Wi‑Fi sharing
Still dealing with XML in 2026? Whether you're migrating a legacy SOAP API, parsing RSS feeds, or modernizing old configuration files, our XML to JSON Converter makes the transition seamless. Why Convert XML to JSON? XML dominated data exchange in the 2000s. Today, JSON is the standard for web APIs. Here's why developers are migrating: 1. API Modernization
TL;DR — Enter a birthdate → get exact age (years/months/days) + days until the next birthday. Open the calculator → Whether you're filling out a visa form that asks "age as of date of arrival," checking if your kid meets a school enrollment cutoff, or just curious how many days until your birthday — you need an exact answer, not a rough guess. The Age Calculator breaks age into years, months,…
Need to crop an avatar, social post, or slide cover but don’t want to upload sensitive photos to random sites? The Image Cropper works 100% locally. Drop a photo, choose 1:1, 4:5, 16:9, or 9:16, rotate if needed, and export as PNG/JPEG/WebP without leaving the browser. When Local Cropping Beats Online Services Privacy: product shots, IDs, and internal assets never leave your device. Speed: no…
Splitting a dinner bill shouldn't require mental gymnastics or a dedicated app. Our Tip Calculator handles tip percentage, split-by-person, and rounding—all in one interface, all offline. ⚡ Calculate Your Tip Now → Open Tip Calculator — enter the bill, pick a percentage, split by people. How to Use It in Under 10 Seconds
Most QR scanners force you to install an app or upload your image to a server. If you are scanning boarding passes, Wi-Fi credentials, or internal links, that is an unnecessary privacy risk. The QR Code Scanner at JW Tool Box works entirely in the browser—no uploads, no sign-ups, and it runs offline after loading. Quick answer: to scan a QR code without an app, open the QR Code Scanner, allow…
If you need a barcode quickly, the hard part is usually not drawing the bars. It is picking the right format and testing it in the real workflow before you print 500 labels. That is where the Barcode Generator is useful. It lets you generate common formats locally in the browser, download a PNG, and test before you commit. The First Decision: Retail or Internal Use? Before you type anything in…
Use the calculator above to choose two dates and get the answer without leaving this page. The default result excludes the start date; enable Count both dates to include both endpoints. These are calendar days, including weekends and holidays. How many days between two dates? The answer is the number of whole days you cross from the start date to the end date — and below you'll find the formul…
Use the USD Amount to Words Converter to turn a dollar amount into a check line. Enter 242.05, then copy TWO HUNDRED FORTY-TWO AND 05/100 DOLLARS. This page explains the tool's five outputs and how to check them before copying. For handwriting rules, read the written-amount guide. For the date, payee and signature, use the six-field check walkthrough. Use the Converter in Four Steps 1. Open th…
Can't decide who goes first? Need random numbers for a game? Our free Random Generator tool picks numbers and list items with true randomness—no coins or dice required. Two Tools in One Random Number Generator Generate random numbers within any range you specify:
Need to convert an SVG file to PNG format? Our free SVG to PNG Converter tool transforms vector graphics into high-quality raster images directly in your browser—no uploads, no signups, and no quality loss. Why Convert SVG to PNG? SVG (Scalable Vector Graphics) is perfect for logos and icons on the web, but many platforms don't accept SVG files: Email signatures require raster formats like PNG…
Accidentally left Caps Lock on? Need to convert variable names to camelCase? Our free Case Converter Tool transforms text between any format in one click. Quick answer: paste your text into the Case Converter and click a format: UPPERCASE, lowercase, Title Case, Sentence case, camelCase, PascalCase, snakecase, kebab-case, aLtErNaTiNg, or iNVERSE. Conversion happens in your browser, so code and…
Working with a global team? Our free World Clock tool shows you the current time across multiple cities at a glance—no more mental math or accidentally scheduling calls at 3 AM. Why You Need a World Clock Tool Remote work has gone global. Your team might span: Development in India (IST, UTC+5:30)
TL;DR — Paste two versions of any text, code, or document into the Diff Checker → and see every addition, deletion, and change highlighted instantly. Runs locally — nothing gets uploaded. Ever spent an hour squinting at two versions of a document trying to find what changed? Whether it's a lawyer who swapped "30 days" for "60 days" in a contract, a colleague who "made a few small edits" to you…
Have you ever clicked a link in an email only to get a "Page Not Found" error? Or noticed your UTM tracking parameters mysteriously disappearing from Google Analytics? The culprit is almost always improper URL encoding. TL;DR — URL encoding converts special characters (spaces, &, =, ) into percent-encoded format so they don’t break your links. Spaces become %20, ampersands become %26. Only enc…
To test a JavaScript regular expression online, open the Regex Tester, enter the pattern without / delimiters, and paste a short sample. The page highlights matches and lists their starting indexes and numbered capture groups. Use invented text while learning. Your first test: find an invoice number 1. Enter INV-(\d{4})-(\d{3}) in the pattern field. 2. Leave the default g and i flags enabled.
Most "free" QR code generators are a trap. You create a code, print 1,000 flyers, and a week later the code stops working unless you pay a monthly subscription. JW Tool Box QR Code Generator is different. We generate Static QR Codes that: 1. Never Expire: The link is stored in the code itself, not on our servers. 2. Have No Scan Limits: Scan it 1 million times, it will still work.
Creating content for Instagram, TikTok, and X (Twitter) requires precise image dimensions. Upload the wrong size and the platform crops or recompresses your image, and the quality you exported is not the quality people see. You have probably searched for "best image resizer for social media" and found dozens of ad-filled websites. The part those comparison posts skip is what happens to the pho…
Every time a user visits your website, their browser has to make a separate request for every single image file. If your site has dozens of small icons, logos, or UI elements, these requests can pile up and slow down your page load time. One powerful optimization technique is Base64 encoding. By converting your images into text strings and embedding them directly into your HTML or CSS, you can…
Every UI designer and requires a toolkit of reliable utilities. Whether you need dummy text for a wireframe, optimized assets for production, or a quick way to debug authentication tokens, having the right tools bookmark-ready can save hours.
TL;DR — Instagram post: 1080×1350 (4:5 portrait). Story/Reel: 1080×1920 (9:16). Facebook: 1200×630. YouTube thumbnail: 1280×720. Resize any photo instantly with the Image Resizer → Every social platform compresses images differently, displays them at different sizes, and penalizes uploads that don't match their specs. The result: blurry thumbnails, awkward crops, and lower engagement — all bec…
In the digital world, "hashing" is a fundamental concept for security and data integrity. Whether you are storing user passwords or verifying that a downloaded file hasn't been tampered with, you need a hash function. But with so many options—MD5, SHA-1, SHA-256—which one should you use? And how do you generate them easily? Use our Hash Generator to create hashes instantly in your browser. Wha…
Every developer faces the choice: How should I structure my configuration files? How should my API send data? In 2026, the "Big Three" data serialization formats—JSON, YAML, and XML—still dominate the landscape. But they are not interchangeable. Each has a specific superpower (and a specific kryptonite). Here is the definitive breakdown to help you choose the right tool for the job. 1. JSON (J…
One of the first decisions you make when designing a database schema is: What should be the Primary Key? For decades, the default answer was Auto-Increment Integer (1, 2, 3...). It's simple, human-readable, and efficient. But in modern distributed systems, UUIDs (Universally Unique Identifiers) have become the gold standard. Why the shift? And when should you stick to the old ways? Let's dive…
People usually frame productivity as a tool problem. In practice it is more often a structure problem. If a task has no defined working window, it expands until you feel guilty, distracted, or exhausted. That is why both Pomodoro and Deep Work still hold up. They are just two different ways of timeboxing attention. Pomodoro: Short Cycles With Clear Recovery Pomodoro is best when you need help…
You just bought a car for $30,000. You made payments for a year. You look at your statement, and you still owe $28,500. Why? Welcome to the confusing world of amortization. If you have ever felt like your monthly car payments are going straight into a black hole instead of paying off your debt, you are not alone. Understanding how interest is calculated is the first step to beating the bank at…
"Lorem ipsum dolor sit amet..." — we have all seen it a thousand times. It is the default placeholder text for designers worldwide. But sometimes, standard Latin filler just feels too meaningful... or simply too boring. If you are looking to spice up your mockups or need a lipsum generator that offers something different, you are in the right place. In this guide, we'll explore the best altern…
Large images are the 1 silent killer of website performance. Whether you are running a Shopify store or a WordPress blog, heavy PNGs and unoptimized JPGs tank your Core Web Vitals, hurt your SEO rankings, and frustrate mobile users. But you don't need expensive subscriptions or complex plugins to fix it. Here is how to use our free Image Compressor to shrink your file sizes while keeping your…
Stop guessing css color codes. Use our Color Converter to switch between HEX, RGB, HSL, and more instantly. Whether you are a UI designer ensuring brand consistency with web colors or a developer wrestling with design tokens, accurate color data is critical. But manually calculating these values is a headache. Here is how you can use the Color Converter as your go-to color picker utility to st…
Generate custom filler text and random sentences instantly with our Lorem Ipsum Generator. Whether you are building a website wireframe, designing a brochure, or testing a new typeface, you need "dummy content" that looks real but doesn't distract. That is exactly what Lipsum (short for Lorem Ipsum) does. Here is why designers love it and how you can use our Lorem Ipsum Generator to speed up y…
If you use an iPhone, you've probably encountered the HEIC format. You take a photo, try to upload it to a website or send it to a Windows PC, and suddenly it's unreadable. "File format not supported" is a frustrating error message. While HEIC (High Efficiency Image Container) is great for saving space on your phone, it's terrible for compatibility. Here is how to convert your HEIC photos to t…
Have you ever taken the perfect photo, only to have Instagram crop out the best part or TikTok make it look blurry? You're not alone. Each social media platform has strict requirements for image dimensions and file sizes. If you don't shrink or resize your photos correctly, the platforms will do it for you—often with poor results. In this guide, we'll cover exactly how to resize your images fo…
TL;DR — Drop your PDFs into the browser, drag pages around, and export. The PDF tools process documents in your browser with JavaScript libraries and do not upload the PDF contents to JW Tool Box. The site still collects usage information as described in the Privacy Policy. Adobe Acrobat costs $240/year. Smallpdf and iLovePDF upload your files to their servers, which is a non-starter for NDAs,…
Switching between CSV spreadsheets and JSON API payloads is one of those daily developer tasks that sounds simple but constantly bites you: mismatched delimiters, quoted fields with commas, encoding issues. This guide covers how to convert CSV to JSON (and back) instantly in your browser—no Excel, no Python script, no uploads. ⚡ Quick Start → CSV to JSON Converter — paste your data, convert, c…
One compression preset does not fit every channel. The settings that work for a Shopify hero image are different from what works for an Instagram story cover or a resume headshot. This guide gives you practical starting points you can use with the Image Compressor without guessing from scratch. The Fast Rule: Width Matters More Than Most People Think If a platform displays an image at roughly…
Adding watermarks to photos protects your work and establishes ownership before sharing online. But doing it image-by-image is tedious—and uploading your photos to a cloud watermark service creates a privacy risk you probably haven't considered. This guide covers how to batch watermark photos free, directly in your browser, in under a minute. ⚡ Quick Start → Image Watermark Tool — drop your fi…
The PDF Compressor renders your PDF pages in the browser and rebuilds them using JPEG images. This can reduce image-heavy documents, but it is a lossy process. Keep your original and compare the exported file before sharing it. For a specific upload limit, use the tested PDF-under-2-MB workflow. This guide explains when compression is appropriate and which tradeoffs to check. What the compress…
Receipt screenshots pile up across your camera roll, downloads folder, and email attachments. When your accountant asks for expense documentation or your employer needs proof-of-purchase, combining them into a single, professional PDF is far better than sending a bundle of loose image files. This guide shows you how to convert screenshots to a clean PDF entirely in your browser—no upload, no w…
Image compression is one of the highest-leverage fixes you can make to a slow website, heavy product gallery, or oversized documentation set. If a page feels sluggish, the problem is often not your code. It is usually a handful of oversized JPGs and PNGs doing unnecessary damage. The good news is that you do not need Photoshop, a plugin subscription, or a cloud uploader to fix this. You can co…
Combining PDF files should be simple, free, and private. Whether you're merging a contract, assembling a thesis, or organizing receipts for an expense report, you shouldn't have to upload your documents to a stranger's server to do it. TL;DR — Use the PDF Merge Tool to merge any number of PDFs in your browser. No upload, no sign-up, no daily limits, no file size cap imposed by a server. Drag,…
Convert any ingredient with our Universal Unit Converter. We've all been there: you find the perfect recipe online, but it's written in grams and milliliters, while your kitchen is stocked with measuring cups and spoons (or vice versa). Cooking is an art, but baking is a science—and in science, precision matters. Guessing that "a cup is about 200 grams" can lead to dry cakes, flat breads, or s…
Need to hit a word limit for an essay, stay under a character cap for social media, or estimate reading time for a blog post? Our Free Word Counter gives you instant results—no sign-up, no upload, works entirely in your browser. Quick answer: paste your text into the Word Counter and it shows words, characters (with and without spaces), sentences, paragraphs, and reading time as you type. Read…
Unlock your documents with our PDF Unlocker. Password-protecting PDF files is a great way to secure sensitive information. However, it can become a hassle if you need to share the file with colleagues who don't have the password, or if you simply want to archive a personal copy without the annoyance of typing a password every time you open it. If you know the password but want to remove it per…
If a website rejects an iPhone HEIC photo, create a JPG copy with the HEIC to Image Converter. The conversion runs in the browser. Keep the original HEIC file until you have opened and checked the exported image. This page covers a first-file conversion. For several photos, follow the batch workflow; for errors, use the conversion troubleshooting guide. Convert one photo 1. Open the converter…
Secure your accounts with our Strong Password Generator. Data breaches are happening more frequently than ever. The first line of defense for your digital life is a strong, unique password for every account. But coming up with random strings of characters on your own is difficult, and humans are notoriously bad at being random. The Strong Password Generator in JW Tool Box makes it easy to crea…
Plan your home purchase with our Mortgage Calculator. Buying a home is one of the biggest financial decisions you'll ever make. While the listing price gives you a ballpark figure, your actual monthly payment involves much more than just paying back the loan. To truly understand what you can afford, you need to calculate your PITI: Principal, Interest, Taxes, and Insurance. What is PITI? PITI…
JW Tech Tips: https://www.jwtechtips.top When I graduated college, I gave myself a challenge: build a real blog that proves I can ship—front-end, back-end, and a bit of growth hacking. That’s how JW Tech Tips was born. It’s my little “playhouse” where I stash experiments in web development, virtualization, and digital marketing. Why I built it Skill gym: WordPress theming/tweaks, performance c…