About FreePhotoConvert
Image converters that run in your browser, not on a server.
The problem
Online image converters work like this: you upload your photo, a server converts it, you download the result. That means your file lives on someone else's machine for some period of time. For a vacation photo, who cares. For a confidential design, an ID scan, a medical image, or a private photo — you probably do care.
The fix
Modern browsers can do the conversion themselves. JavaScript and WebAssembly run heavy image processing in the tab. Your photo never leaves your machine. We send you the page once; everything after that is local.
How to verify
Open DevTools, switch to the Network tab, run a conversion. You'll see requests for the page assets and the converter library. You won't see your file being uploaded anywhere. Or kill your Wi-Fi after the page loads — most converters keep working.
What we use
- HEIC decoding: libheif compiled to WebAssembly (the same library that Apple's open-source contributors maintain)
- PSD decoding: ag-psd, a pure-JS Photoshop reader
- TIFF decoding: UTIF, a pure-JS TIFF reader
- PDF rendering: pdf.js by Mozilla (same engine that powers Firefox's built-in PDF viewer)
- PDF building: pdf-lib for combining images into PDFs
- RAW preview extraction: a JavaScript scanner that finds the embedded full-resolution JPEG inside camera RAW files
- Background removal: @imgly/background-removal running ONNX models via WebAssembly
- Image-to-image conversion: the browser's native Canvas API
- Batch ZIPs: JSZip
How this site stays free
Display ads from Google AdSense. There are no servers processing your files, so our costs are minimal — mostly the domain registration and Cloudflare's free static-site hosting.
Limitations
The tradeoff for browser-side conversion is your computer does the work. Big RAW files or large PSDs eat memory. Phones struggle past about 50 MB per file. Most laptops handle 200+ MB without trouble. Multi-gigabyte files generally don't work in any browser.
Related sites
- freebookconvert.com — ebook + PDF converters with the same approach
- fixheic.com — focused HEIC tools for iPhone photos
- unrarit.com — RAR archive extraction
- extract7z.com — 7Z archive extraction