Every time I needed a quick PDF merge or background removal, the "free" tool either wanted my email, wanted me to sign up, or was quietly uploading my file to a server somewhere.
So I built tools1hub.com, 26 tools across 7 categories (PDF, image, AI, developer/workflow, and a few others) where everything runs entirely client-side in the browser. Nothing you upload ever leaves your device.
No signup, no email wall, no watermark, no daily limits.
Tech-wise:
Next.js with a static export, hosted on Cloudflare Pages
WebAssembly handles the heavy lifting, ffmpeg.wasm for audio conversion, similar client-side approaches for image processing
No backend at all for most tools, since everything runs in the user's browser
A few tools worth trying:
Background remover, full resolution, no upload
PDF merge/split/compress
Bulk QR code generator
Document OCR and scanner
It's a solo project, very much a v1. Would love feedback on what breaks, what's confusing, or what's missing, especially from other devs who've tackled similar client-side/WASM challenges.
tools1hub.com
Top comments (1)
Client-side tools are underrated for trust. The feature is not just "no signup"; it is that the privacy story is inspectable from the architecture. For file utilities especially, "your file never leaves the browser" is much clearer than another policy page asking users to trust a server they cannot see.