7z converter
Pick what to do with a 7z file. Everything runs in your browser, nothing is uploaded.
7z tools
Convert 7z files free and in your browser. Pick a target format or a tool below, drop your file in, and download the result. Nothing is uploaded, so your files stay on your device.
About 7z
7z is the archive format of 7-Zip, known for high compression. Opening one here needs no install; creating 7z is not possible in a browser.
Questions
Is the 7z converter free?
Yes, it is free with no sign-up and no watermark. There is no cap on how many files you can convert, and nothing to install.
Do my files get uploaded to a server?
No. The conversion runs entirely in your browser using code that loads onto your device, so the file is read, converted, and downloaded locally. It never reaches us or anyone else.
Which format should I convert my 7z to?
It depends on what you need. For wide compatibility choose a mainstream format; for the smallest file choose a modern, efficient one. Each conversion page explains the trade-off.