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How to Convert RAR to 7Z Online
Upload RAR Archive
Click the upload area or drag & drop your RAR file (Max 300MB, 2500 files).
Extract Contents
Our tool extracts all files from your RAR archive for conversion.
Compress to 7Z
Files are re-compressed using the 7Z format with its superior compression algorithms.
Download 7Z File
Download your new 7Z archive, optimized for maximum compression and efficient storage.
Related Archive Conversion Tools
Need more formats? Check our Universal Archive Converter for complete conversion options.
Free Online RAR to 7Z Converter - Achieve Highest Compression Instantly
RAR files are known for their robust compression and advanced features like recovery records and password protection. However, when the goal is to achieve the absolute highest compression ratio, or to use an open-source, highly efficient archive format, converting RAR to 7Z becomes the optimal choice. The 7Z format, powered by the LZMA and LZMA2 compression algorithms, consistently outperforms RAR and ZIP in terms of file size reduction, making it ideal for archiving large datasets or saving significant storage space.
Why Convert RAR Archives to 7Z Format?
The primary advantage of the 7Z format is its superior compression capability. For many file types, 7Z can achieve 5-15% better compression than RAR, and even more compared to ZIP. This translates directly into smaller file sizes, faster uploads and downloads, and more efficient storage. Furthermore, 7Z is an open-source format, which means it's widely supported by various archiving tools across different operating systems, offering greater flexibility and accessibility compared to the proprietary RAR format.
Our free online RAR to 7Z converter provides a seamless solution for this conversion. You don't need to install any software like 7-Zip or WinRAR; simply upload your RAR file, and our tool will handle the extraction and re-compression process automatically. We support RAR archives up to 300MB in size and those containing up to 2500 individual files, ensuring that even substantial collections can be converted efficiently and reliably.
The conversion is completely free, requires no registration, and preserves your original file structure and permissions. Whether you're aiming for the smallest possible file size, need an open-source archive solution, or want to share files with maximum compression efficiency, our converter offers a fast, secure, and user-friendly way to transform your RAR archives into highly optimized 7Z files.
Frequently Asked Questions About RAR to 7Z Conversion
Yes, in most cases. 7Z, using its advanced LZMA/LZMA2 algorithms, typically achieves higher compression ratios than RAR, often resulting in 5-15% smaller file sizes for the same content. The exact improvement depends on the types of files being compressed.
Our converter supports RAR files up to 300MB in size and archives containing up to 2500 individual files. The output 7Z file has a maximum size limit of 1GB to ensure reliable processing and download.
Yes, absolutely. Our tool extracts the complete directory structure from your RAR archive and recreates it exactly in the 7Z file. File timestamps and structure are preserved throughout the conversion process.
Currently, our converter processes standard RAR files without encryption. If your RAR file is password-protected, you'll need to extract it first using the original password, then recompress as 7Z using our tool.