A free file converter that works entirely in your browser
File Format Converter is a free collection of file conversion tools built for speed and privacy. Unlike most online converters, it does all the processing locally on your own device — nothing is uploaded to a server. That means your files stay confidential, conversions are instant, and there are no file-size limits beyond your computer's memory.
Start with our most popular tools: Merge PDF, PNG to JPG, HEIC to JPG, Word to PDF, CSV to JSON, MP4 to MP3 and MOV to MP4. Browse everything on the all tools page, or jump into a category above.
Why use File Format Converter?
- Private by design — files are processed in your browser and never uploaded.
- No sign-up, no watermark — every tool is free to use immediately.
- Fast — conversions happen on your device with no upload or download wait.
- Everything in one place — PDF, image, document, data, audio and video formats.