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b3sum vs DeadHash: catalog facts
b3sum	DeadHash
Free Free and open source, dual-licensed under CC0 and Apache 2.0.	Free Free and open source under GPL-3.0.
Windows, Command line	Android
Familiar sha256sum-style interface BLAKE3 hashing is fast on large files	Hashes both files and text Built-in hash comparison
BLAKE3 checksums are less widely published than SHA-256 ones No prebuilt releases on the GitHub repository	No newer algorithms such as SHA-3 or BLAKE in the listed set Single-purpose tool
Downloadable app	Downloadable app
Open source	Open source
License: CC0-1.0 OR Apache-2.0	License: GPL-3.0-only
No account needed	Not stated if an account is needed
Works offline	Not stated if it works offline
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked October 2, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.