FileFormer has 76 format-pair converters, 9 family converters and over 50 file and developer tools, all running directly in your browser. The conversion engine downloads to your device once, your files never travel to ours.
Type the extension you have, or pick a family. Each format gets a plain explanation, the formats it converts to, and why you'd pick each one.
Apple's default photo format since iOS 11. Half the size of JPG at similar quality, but Windows, many websites and older apps can't open it.
Every converter, compressor and editor, sorted by the file you're holding. Pick a family to see where to start, every conversion it has, and the tools that work on it.
Photos, screenshots, icons and graphics. Change format, cut size for the web, or rescue iPhone HEIC photos.
From the moment you open it to the moment you save the result, every step runs on your own device.
JSON, word counts, loans, domains. Hover a tool to see what goes in and what comes out.
The utilities you keep bookmarked. Tokens, payloads and keys are processed in this tab and never logged.
Every developer toolarrow_forwardFormat and see where parsers disagree
Every core converter and tool is free to use. Light ads keep it running, you control them in cookie settings.
There is no upload server: converters, compressors and editors all run on your device. Where a browser can’t do something, the page says so rather than sending your file elsewhere.
There’s no fixed cap. Since work happens locally, how big you can go depends on your browser’s memory.
The first time you use a converter, its engine downloads and is cached. From then on it starts immediately: even offline.
Lossless targets preserve everything. Lossy ones show the expected size before you save, so there are no surprises.
Select a whole folder. Files convert in parallel, then save one by one or together as a single ZIP.
Type the extension you have and pick what you need. The box checks it against the formats we already read, so you find out straight away whether a page exists.
Beyond privacy and price, here's what makes FileFormer the converter people keep coming back to.
FileFormer gets its own window and icon. Converters you have already opened stay cached, so they keep working with no connection.
One clear download button, never a disguised ad. No email wall, no "premium" upsell hiding the result, no watermark on your file.
Renamed files are common. FileFormer reads the file header, not just the extension, so a "JPG" that is secretly HEIC still converts correctly.
Camera details and GPS location travel with your photos. View, edit or strip that metadata before you share.
The site is in English for now. The tools handle any language in your files and text, including right-to-left scripts and non-Latin file names.
Tools, how-to guides and format explanations are all searchable from one bar: find the right one without browsing menus.
Conversion runs on WebAssembly, the Canvas API and Web Workers in your browser, with established libraries like heic2any for Apple photos.