ARJ Converter

Convert ARJ files online, for free, with nothing to install.

ARJ is a DOS-era archive format that was popular for splitting files across floppy disks. ARJ files can be saved as ZIP, 7Z, TAR, TAR.GZ, TAR.BZ2, TAR.XZ, RAR, and most of these conversions run right in your browser, so your files stay on your device.

What is an ARJ file?

ARJ – ARJ archive. ARJ is a DOS-era archive format that was popular for splitting files across floppy disks.

How to convert an ARJ file

  1. Click Select File, or drop your .arj files anywhere on this page.
  2. Pick the format you want next to each file, for example ZIP.
  3. Click Convert, then Download when it's done.

ARJ at a glance

ARJ
TypeArchive
HoldsMany files and folders
CompressionLZ77 with Huffman coding
EncryptionPassword protection
Created byRobert K. Jung, early 1990s
Best forOpening old DOS archives

Frequently asked questions

What is an ARJ file?

ARJ is a DOS-era archive format that was popular for splitting files across floppy disks.

How do I open an ARJ file?

Archive programs such as 7-Zip open many formats. Without one, open it on our Extract ARJ Files page to see what's inside and save the files you need, or convert it to ZIP here: Windows, macOS and Linux all open ZIP files by themselves.

Is converting ARJ files free?

Yes. Everyone gets 25 free credits a day, with no account needed. Conversions on our server use one credit per started minute of work, so most cost a single credit. Credits reset at midnight UTC.

Are my ARJ files uploaded anywhere?

Files up to 200 MB never leave your device: ConvertKitty runs 7-Zip inside your browser. Only larger files, or formats your browser cannot handle, are sent to our server, over an encrypted connection, and deleted 72 hours after the conversion. The button says "Upload and convert" whenever that happens.

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