7z files
The 7-Zip format, using LZMA2 to reach noticeably smaller archives than ZIP, with strong AES-256 encryption. Slower to compress, and needs software the OS does not ship.
- Extension
.7z- MIME type
application/x-7z-compressed- Category
- archive
- Can convert from
- Yes, via 7-Zip
- Can convert to
- Yes, via 7-Zip
Converting 7z files privately
frogConvert runs the conversion engines in your browser as WebAssembly, so a 7z file is read, converted and saved without ever being sent anywhere. That matters most for the files people are least willing to upload: contracts, medical records, unreleased work, anything under an NDA.
It also means the converter works offline. Once the page has loaded, you can turn off the network and keep converting.
Common questions
- Can I open a 7z file without installing anything?
- Yes. frogConvert reads 7z files directly in the browser and converts them to a format you already have software for. Nothing is installed and nothing is uploaded.
- Are my 7z files uploaded to a server?
- No. Every conversion runs locally in your browser through WebAssembly. There is no server to send files to, and the app keeps working with the network disconnected.