Turn ARJ archives into 7Z. It is converted in your browser, so the file never leaves your device.
Drop ARJ files here
or choose from your computer paste with Ctrl V
from Photos or Files
Ready · other file types work too0 bytes uploaded, ever
Drop ARJ files onto the box above, or click it to choose them. ToAny reads the file's contents to detect the type, so a wrong extension does not matter.
Press Convert. There is nothing else to set. The work happens in this tab.
Save the 7Z, or download everything as one ZIP if you converted several files.
The ARJ to 7Z converter is part of this page and runs inside your browser. Your archives are never sent to ToAny or to anyone else.
Nothing has to travel to a server and back, so the conversion starts the moment you press Convert, even on a slow connection.
No sign-up, no email address and no watermark. Add several files and download them together as a ZIP.
ARJ is a DOS-era format that current operating systems cannot open. 7z usually compresses tighter than ZIP. ARJ is at home in opening MS-DOS era archives; 7Z is the usual choice for the smallest archives.
A password-protected archive is refused, since its contents cannot be read without the password. ARJ files are read, not installed or mounted: every file inside is unpacked and repacked into the 7Z, so nothing of the system image or installer is run.
ARJ was a popular MS-DOS archiver of the early 1990s, known for good compression and for splitting archives across floppy disks. It was widely used on bulletin boards. Current operating systems do not open it themselves.
Opens in 7-Zip, WinRAR and The Unarchiver; no built-in support on current systems
ARJ converter7z is the format of the open-source 7-Zip tool. It usually compresses noticeably better than ZIP, at the cost of needing an extra app on many computers.
Opens in 7-Zip, Keka, The Unarchiver, WinRAR; not built into older Windows or macOS
7Z converter| ARJARJ archive | 7Z7-Zip archive | |
|---|---|---|
| Stands for | Archived by Robert Jung | 7-Zip archive |
| Type | Compressed archive | Compressed archive |
| Compression | Lossless | Lossless (LZMA / LZMA2) |
| Introduced | 1990, by Robert K. Jung | 1999, by Igor Pavlov |
| Opens in | 7-Zip, WinRAR and The Unarchiver; no built-in support on current systems | 7-Zip, Keka, The Unarchiver, WinRAR; not built into older Windows or macOS |
| Best for | Opening MS-DOS era archives | The smallest archives |
| File extension | .arj | .7z |
No. The ARJ to 7Z conversion runs inside your browser, on your own phone or computer. The file is not sent to ToAny or to anyone else.
No. The files inside are repackaged unchanged.
Yes. Add as many as you like, convert them together and download each result or all of them as one ZIP.
The steps are the same everywhere because ToAny runs in the web browser: open this page in a current version of Chrome, Edge, Safari or Firefox, add the ARJ file, press Convert and save the 7Z. There is nothing to install.
Yes. An archive can be up to 500 MB, unpack to at most 1 GB and hold up to 50,000 files; beyond those limits the page says so. Beyond that the limit is your device's memory, since nothing is uploaded; a computer copes with large files better than a phone.