Private, free alternatives for everyday file jobs
Fizzdoc does everyday PDF, image, Office and audio jobs inside your browser, free and without uploading your files. If you usually use one of these services for a job, here is the Fizzdoc tool for it.
Free forever · Runs on your device · 0 bytes uploaded
Choose a comparison
- iLovePDF alternativeLooking for an iLovePDF alternative? Fizzdoc merges, compresses, converts, edits and unlocks PDFs free, in your browser. Your files are never uploaded.
- Smallpdf alternativeA free Smallpdf alternative that keeps your files on your device: compress, merge, convert, edit and unlock PDFs in your browser. No account, no limits.
- Sejda alternativeA free Sejda alternative: edit PDF text in the PDF’s own font, then redact, merge, split or compress, all in your browser. Nothing is uploaded.
- CloudConvert alternativeA free CloudConvert alternative for everyday conversions: PDF, Word, Excel, CSV, JSON, images and audio, converted in your browser. Nothing is uploaded.
- TinyPNG alternativeA free TinyPNG alternative that compresses JPG, PNG and WebP in your browser, in bulk, or to an exact size in KB. Your photos are never uploaded.
- PDF24 alternativeA PDF24 alternative that runs in your browser without uploading: merge, compress, convert, edit, redact and OCR PDFs free, with no install.
- Adobe Acrobat online alternativeA free alternative to Adobe Acrobat’s online tools: merge, compress, convert, edit, protect and OCR PDFs in your browser, with no account and no upload.
Private by design — and you can check
Your files are never uploaded, because there is nowhere to upload them to.
- No upload step existsFiles are read and written inside this browser tab. There is no server that could receive them.
- The browser enforces itThis page’s Content Security Policy only allows connections back to this site, which serves nothing but the app itself.
- See for yourselfOpen developer tools, watch the Network tab and run a job: no request carries your document.
- Open sourceEvery line is on GitHub, built on qpdf, pdf.js & pdf-lib.
Frequently asked questions
How can Fizzdoc work without uploading my file?
Every tool runs inside your browser tab, using engines compiled to WebAssembly. Your file is read from your device, processed there and saved back to it. The page is only allowed to talk to fizzdoc.com, which serves nothing but the website itself, and you can watch your browser’s Network tab to see that no file leaves.
What can’t Fizzdoc do yet?
Some jobs aren’t built yet, such as e-signatures, PDF to Excel and video conversion. The list of planned tools is open on GitHub, and contributions are welcome.
Are these services affiliated with Fizzdoc?
No. Fizzdoc is independent and open source. The names on these pages are trademarks of their owners and are used only to say what each page is about.