PDFree
Free, privacy-first PDF tools that run entirely in your browser.
pdfree.io — merge, split, compress, convert, and 30+ other PDF operations, processed 100% client-side with WebAssembly and Web Workers. No file is ever uploaded to a server: open the Network tab while using any tool and there's nothing to see. No account, no daily limits, no subscription, no ads-driven upsell — free forever.
Why PDFree
- Nothing leaves your device. Every tool runs in-browser via
pdf-lib/pdf.js/WebAssembly inside a Web Worker. There is no upload endpoint to send a file to, by construction — not "we delete it after," genuinely never transmitted. - No account, no limits. No signup, no file-size cap, no daily quota.
- Works offline after first visit — installable as a PWA, service-worker cached.
- Open source, AGPLv3. Inspect exactly what runs on your files.
- 14 languages, each with a full localized homepage and UI, not just translated tool-page copy.
What it does
Merge, split, compress, rotate, watermark, redact, protect/unlock, flatten, organize, resize, add page numbers, edit metadata, extract pages, draw & annotate, fill & sign forms, OCR scanned PDFs, scan documents with a camera, compare two PDFs, split manga page spreads, prepare PDFs for e-readers, check PDF/A archival compliance, look up PDF terminology, and convert between PDF and JPG/Word/Excel/PowerPoint/Markdown.
Full, current list: pdfree.io/sitemap.xml
Stack
Vanilla JavaScript (ES modules), no framework, no bundler. Static site generated by a Python/Jinja2 build script, deployed to Cloudflare Workers. See CONTRIBUTING.md for the architecture, module map, and how to add a new tool.
Running locally
python3 scripts/build.py # generates dist/
python3 -m http.server 8080 --directory dist
License
GNU AGPLv3. Third-party runtime dependencies: pdf-lib (MIT), JSZip (MIT), pdf.js (Apache 2.0).
