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RAR to 7Z Converter

Convert RAR to 7Z online for free. Fast, secure archive conversion that preserves folder structure and file integrity. No software installation required.

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RAR vs 7Z: Side-by-side

Technical comparison of the two formats — useful for deciding which to use, or for confirming what changes during conversion.

Property RAR 7Z
Full name Roshal Archive 7-Zip Archive
Year introduced 1993 1999
Developer / standard body Eugene Roshal Igor Pavlov
MIME type application/vnd.rar application/x-7z-compressed
File extension .rar .7z
Compression RAR (proprietary) LZMA / LZMA2 (best ratio of common formats)
Color / data depth N/A N/A
Max dimensions / size Unlimited (RAR5) 16 EB file size
Transparency No No
Animation No No
Standard / specification RAR (proprietary, WinRAR) 7-Zip (open)
Best for Better compression than ZIP, password protection, recovery records Maximum compression — typically 30–50% smaller than ZIP

RAR to 7Z FAQ

Quick answers about compatibility, quality, metadata handling, and the most common reasons to convert RAR files to 7Z.

How do I convert RAR to 7Z without extracting files manually?
Upload your RAR file to iFormat and click Convert. Every file and folder inside is extracted and re-packaged as 7Z with the folder structure intact — no need to extract, reorganise, and re-compress yourself. It's free and needs no account.

Does converting RAR to 7Z keep my folder structure?
Yes. All files, nested folders, and the hierarchy inside your RAR archive are preserved when they're re-compressed into 7Z, so the contents open exactly as they were organised.

Why convert RAR to 7Z?
RAR is the WinRAR archive format good for multi-part archives. 7Z is a high-ratio LZMA2 archive best for maximum compression. Convert when the recipient's software opens 7Z more easily, or when you need its compression or compatibility.

Are the files inside the archive changed during conversion?
No — the individual files are only re-compressed, not modified. A document, photo, or spreadsheet inside your RAR archive is byte-for-byte identical after it's re-packaged as 7Z.

Can I convert RAR to 7Z on Mac, Windows, or Linux?
Yes. iFormat works in any modern browser on any operating system — no need to install WinRAR, 7-Zip, or any other desktop tool. Upload the RAR archive, convert to 7Z, and download.

What is RAR?
RAR is the WinRAR archive format, typically used for multi-part archives. Converting it to 7Z makes the file easier to open, share, or upload where RAR is not supported.

Is 7Z better than RAR?
7Z's LZMA2 compression is comparable to or better than RAR's, and 7-Zip is free and open-source (RAR creation requires a paid WinRAR license). 7Z is the better choice for personal archives; ZIP is better for sharing.

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