Productivity tools for the small tasks that aren't worth a dedicated app: generating QR codes with custom colours, scanning QR codes via camera or image, producing barcodes in nine common formats (Code 128, EAN, UPC, Code 39, ITF-14, MSI, Codabar, and more), batch-renaming files via template strings, and bulk-resizing a folder of images at once. Every tool runs in your browser — barcode rendering, QR decoding, and file packaging all happen locally.
For **QR codes**: QR Generator to create, QR Scanner to decode (via camera or image). For **other barcodes** (retail, shipping, inventory), Barcode Generator ships nine symbologies. For **renaming many files** with a template, File Renamer produces a zip of renamed copies (browsers can't rename files on disk directly). For **resizing many images** in one pass, Bulk Resize accepts any number, applies the same max-dimension, and delivers a zip.
What data can I encode in a QR code?
Any text — URLs, plain text, Wi-Fi credentials (format: WIFI:T:WPA;S:name;P:password;;), vCards, mailto links, app deep links. Modern phone cameras recognise URLs, Wi-Fi, and contact cards automatically.
Does QR Scanner work offline?
Yes — decoding uses jsqr in your browser. Camera mode requires HTTPS (or localhost) because browsers restrict getUserMedia on insecure origins.
Why does File Renamer download a zip instead of renaming in place?
Browsers can't rename files on your disk directly — it's a security boundary. The zip-packaging path gets you the same end result in one click.
Is there a size limit on Bulk Resize?
Up to 50 MB per image. For thousands of images, process in batches of a few hundred — otherwise the zip build can exhaust browser memory.
Are any of these tools uploading my files?
No. Every tool in this category runs entirely in your browser. Files you drop in are processed locally, never sent to a server, and discarded when you leave the page.