File encryption
7-Zip privacy rating
Open source file archiver with its own 7z format that can encrypt 7z and ZIP archives with AES-256, including file names in 7z archives. The full graphical app is for Windows, with a command-line version for Linux and macOS.
Summary
7-Zip scores 80 out of 100 (grade B) on the file encryption criteria. It meets 3 of 4 criteria: open source, no trackers or telemetry and no ads or data sales. It does not meet independent audit.
Score 80 out of 100. How scoring works
Criteria
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Yes
Open source Weight 3 of 3
Is all the source code needed to run the product public?
Mostly LGPL-2.1 with some BSD-licensed code. The optional RAR decompression code carries an extra unRAR license restriction.
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Yes
No trackers or telemetry Weight 3 of 3
Are the website and apps free of third-party trackers, with any analytics anonymous and any telemetry off by default?
No telemetry or analytics in the source code, and the website loads no scripts.
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Yes
No ads or data sales Weight 2 of 3
Is the product funded without advertising, ad targeting or selling user data?
Free software with no registration, payment or ads.
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No
Independent audit Weight 2 of 3
Has an independent security or privacy audit been published within the last three years?
No independent audit is published.