RAR to 7Z Converter
Need to convert this file type? Drop it below — or drop any other file and we'll auto-switch. Outputs are auto-deleted after 2 hours; share links expire after 4.
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Convert RAR to 7Z online
Use this RAR to 7Z converter to turn RAR files into 7Z right in your browser — ideal for high-ratio compression and bundling large file sets.
When should you convert RAR to 7Z?
- To bundle files into an archive before downloading
- When you need it for high-ratio compression
- When you need it for bundling large file sets
- To open your files in apps that prefer 7Z
What happens to your file
The RAR archive is extracted into a temporary working directory and repacked as 7Z. Everything happens in a directory that is removed afterwards even if the job crashes, so nothing is left behind on the server.
Settings this conversion runs with
| Source family | Single-file compression |
|---|---|
| Target family | Multi-file archive |
| Contents | Byte-identical after repacking |
What changes
- The RAR is decompressed to a temporary file and then packed as the single entry of a new 7Z archive.
- Every file is fully decompressed and recompressed, so the contents are byte-identical but the archive size will change with the new algorithm.
- RAR is read-only here — we can open one and repack its contents, but nothing writes RAR back out.
About RAR and 7Z files
RAR archive
Strengths
- good compression
- supports recovery records
Limitations
- proprietary
- needs converting to repack
7z archive
Strengths
- excellent compression
- strong encryption support
Limitations
- needs 7-Zip or compatible tool
- slower than ZIP
RAR vs 7Z
| Format | RAR | 7Z |
|---|---|---|
| Compression | Lossless | Lossless |
| Transparency | — | — |
| Best for | compressed downloads, split archives | high-ratio compression, bundling large file sets |
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Frequently asked questions
- Are the files inside changed when repacking RAR as 7Z?
- The RAR archive is extracted into a temporary working directory and repacked as 7Z. Everything happens in a directory that is removed afterwards even if the job crashes, so nothing is left behind on the server.
- What should you know before converting RAR to 7Z?
- The RAR is decompressed to a temporary file and then packed as the single entry of a new 7Z archive.
- Is this RAR to 7Z converter free?
- Yes. You can convert RAR to 7Z online for free, with no account and no watermark.
- Do I need to install software or sign up?
- No. Use the converter from your browser without installing software or creating an account. Files are uploaded to our servers for processing.
- Are my files safe?
- Yes. Files are processed only to complete the conversion and are auto-deleted after 2 hours. We never share them.
- Can I convert multiple RAR files at once?
- Yes. Drop several files to convert them in a batch and download the results as a single ZIP.