7Z is the native format of 7-Zip, offering the best compression ratio among common archive formats. It's open-source, free, and supports strong AES-256 encryption.

How do I open 7Z files?

Upload to our converter to extract contents online, or install 7-Zip (free, open-source software) on your computer to open 7Z files directly.

Convert to 7Z – Free 7Z Converter

Convert to 7Z

Compress and convert archives between ZIP, RAR, 7Z, TAR, and more formats.
Extract, compress, and convert with adjustable compression levels.

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7Z delivers the highest compression ratios available, often reducing file sizes by 30-70% more than ZIP. As an open-source format, 7Z is completely free and increasingly supported across platforms.

Convert to 7Z – Free Online 7Z Converter

About the 7-Zip Archive (7Z) Format

LZMA/LZMA2 compression for maximum ratio. AES-256 encryption. Supports solid archives and multiple compression methods.

Common Use Cases for 7Z

Maximum compression needs
Software distribution
Archival storage
Open-source projects

Pros of 7Z

Best compression ratio
Open source
Strong encryption
Multiple algorithms

Cons of 7Z

Slower compression
Less universal support
Complex for some users

How to convert files to 7Z

Upload your file using the area above.
Select 7Z as the target format.
Click Start and wait for the conversion to finish.
Download your converted 7Z file.