What StuHub is.
StuHub is a collection of free, privacy-first online utilities that run entirely in your browser — image resizers, PDF compressors, JSON and text formatters, password generators, QR code creators, colour pickers, OCR, and dozens more. There's no account to create, no software to install, and no daily quota. Because every tool runs client-side, the files you drop in never leave your device — a strong guarantee that matters for contracts, tax forms, ID scans, and anything personal. If you've been bouncing between ten different single-purpose sites for these jobs, this is the one-stop shelf that replaces them.
The tools, in motion.
Fast, private, and out of your way.
Every tool is pure client-side JavaScript — image processing, PDF editing, OCR, encryption, everything. Your files are decoded on your device, transformed by a library running in this tab, and downloaded straight back. There is no server-side processing step, which is why StuHub stays fast even when your upload is a 50-megabyte PDF.
Because processing is local, your documents, images, and secrets never leave your device. We don't store, log, or analyse user content. Analytics (when enabled) tracks page views and tool events only — never the contents of what you paste or upload. Close the tab and the data is gone.
You won't be asked to sign up, log in, or watch a countdown before the third PDF of the day. Every tool is free for anyone to use, as many times as needed, with no watermarks on the output and no hidden usage caps. The whole site is funded by unobtrusive display ads on content pages — not by gating the tools themselves.
Start with the classics.
Ten shelves. Everything you'd ever reach for.
Chain tools for common jobs.
- 1Compress
- 2Split if large
- 3Password-protect
- 1Resize
- 2Compress
- 3Convert to WEBP
- 1CSV → JSON
- 2JSON Beautifier
- 3Markdown → HTML
- 1Password Generator
- 2HMAC
- 3JWT Decoder