RAR to GZ converter
This makes a GZ out of the RAR you already have. RAR is what arrives from downloads and from files split into numbered parts, and it can repair itself when a piece gets damaged. The practical difference is that the result opens anywhere, which RAR files do not. Your file never leaves your computer.
How to convert RAR to GZ
- 1 Drop your RAR .rar file onto the page, or click to browse for it.
- 2 Check the options. Nothing is thrown away on the way to GZ, so there is no quality dial to set.
- 3 Convert. The work happens on your own machine, so how long it takes depends on your computer and the file.
- 4 Download the GZ, or add more files and do the whole set in one go.
Why convert RAR to GZ
- A RAR will not open in a browser, so anything going onto a web page, into a document or into a message has to become a GZ first.
- Very fast to compress and decompress, with modest memory use.
- Decoded natively by every browser as part of HTTP transfer encoding.
- Compressing individual log files during rotation.
- RAR: nothing extracts it out of the box on Windows, macOS or Linux.
RAR compared with GZ
How the two formats differ on the things that decide whether a conversion is worth making.
| Property | RAR | GZ |
|---|---|---|
| File extension | .rar | .gz |
| Multiple pages | Yes | No |
| Colour depth | Proprietary LZ variant, optional recovery record and volumes | DEFLATE (LZ77 plus Huffman), CRC32 integrity trailer |
| Browser support | No browser support | Every browser |
| Introduced | 1993 | 1992 |
| Developed by | Eugene Roshal, win.rar GmbH | Jean-loup Gailly and Mark Adler |
| Standard | Proprietary | Open |
Quality and what changes
Both sides are lossless, so every pixel survives the trip intact and converting back returns the same image. What changes is the size and what the file can carry: GZ compresses the same data with a different algorithm, so the size can move in either direction.
- RAR files can be read here but not created, so conversions run one way only.
- A multi-page RAR produces one GZ per page.
- One GZ limitation to keep in mind: newer compressors make clearly smaller files.
Questions about RAR to GZ
What happens to a multi-page RAR?
GZ holds one page, so each page becomes a separate file and you get the set as a ZIP. Nothing is discarded, it just cannot stay in a single document.
Is my RAR file uploaded anywhere?
No. The whole thing runs inside the browser tab you already have open. Your RAR is read straight from your own disk, converted on your machine and handed back as a GZ. Nothing is sent anywhere, nothing is stored and there is no account.
Is there a file size limit?
There is no server-side limit because no server sees the file. The real ceiling is your device memory, since the input and the output both have to fit in the tab. A few hundred megabytes is usually fine on a desktop machine and considerably less on a phone.
Can I convert several RAR files at once?
Yes. Add as many as you like and they are processed one after another, then offered as separate GZ downloads or as a single ZIP. Speed depends on your own processor rather than on a queue.
Does the converter work offline?
Yes, after the page has loaded once. The engine is cached by the browser, so you can disconnect, reload and keep converting. That falls out of doing the work locally rather than being a separate mode you switch on.