Blog
Step-by-step articles, tested workflows, and reference guides that support the tools published on JW Tool Box.
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, splitbyperson, 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, WiFi 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 signups, and it runs offline after loading. Camera vs. Image Upload Camera mode: Best for printed codes (menus, posters, packa…
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…
How many days between two dates? What date is 90 days from now? When does a 60day notice period end? TL;DR — Use the Days Calculator to count days between any two dates or find a future/past date by adding days, weeks, or months. Instant, free, handles leap years automatically. Open the calculator → Whether you call it a days calculator, date counter, datetodate calculator, or calendar calcula…