Free Online 7Z Converter
7Z compresses hardest and asks the recipient to install 7-Zip.
Up to 50 MB per file. Sign up free to convert files up to 100 MB.
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Checking files and selected output formats.
How to convert 7Z archives online
Convert 7-Zip archives to formats that extract on any computer without installing 7-Zip.
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Upload your 7Z archive
Drag and drop 7Z files using LZMA, LZMA2, or other supported compression methods. The converter extracts all contents server-side, no 7-Zip installation required on your machine.
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Choose a universal format
Select ZIP for extraction on every operating system without additional software, RAR for recovery record support, or TAR.GZ for Unix and Linux environments. All files and folder structure are preserved.
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Download compatible archive
Download your archive ready to extract on any computer. ZIP output is slightly larger than 7Z but opens natively on Windows, Mac, and Linux. All original files and directories are intact.
Reasons to convert 7Z archives
7Z requires 7-Zip or compatible software that most people do not have installed. Convert 7Z to ZIP for an archive that Windows, Mac, and Linux can all extract natively without extra software.
Email services, cloud storage, and many web platforms do not recognize 7Z files. Convert to ZIP for universal acceptance on every platform, file sharing service, and email provider.
macOS Finder cannot open 7Z archives without third-party tools. Convert 7Z to ZIP for double-click extraction on Mac. All files and folder structure are preserved during conversion.
Linux deployment scripts and CI/CD systems rarely support 7Z. Convert to TAR.GZ for the standard archive format in server environments, Docker builds, and Unix-based automation workflows.
Most non-technical users do not have 7-Zip installed and will not know how to open a 7Z file. Convert to ZIP so anyone can extract the contents without downloading additional software.
Convert 7Z archives online, no WinRAR, no 7-Zip, no downloads. Files up to 100 MB are always free, and files are deleted from our servers within 1 hour.
About the 7Z Format
7Z (7-Zip Archive) is an open-source archive format created by Igor Pavlov in 1999 for the 7-Zip compression program. It uses the LZMA2 compression algorithm, which achieves 30-70% better compression ratios than ZIP on most file types. This makes 7Z the preferred choice when minimizing archive size is the top priority, particularly for large software distributions and data backups.
Beyond superior compression, 7Z supports AES-256 encryption with the option to encrypt file headers as well, hiding even the names of archived files. It also supports solid compression, which compresses multiple files together as a single data stream for even better ratios. The main drawback is that 7Z requires 7-Zip or a compatible third-party tool to create and extract, as it is not natively supported by most operating systems. It is best suited for scenarios where recipients can install 7-Zip and maximum compression is desired.