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DirHash vs b3sum: catalog facts
DirHash	b3sum
Free Free and open source under the BSD-3-Clause licence.	Free Free and open source, dual-licensed under CC0 and Apache 2.0.
Windows, Command line	Windows, Command line
Single fingerprint hash for an entire folder Wide choice of algorithms including Blake3 and SHA-512	Familiar sha256sum-style interface BLAKE3 hashing is fast on large files
Windows only Command-line interface with no GUI	BLAKE3 checksums are less widely published than SHA-256 ones No prebuilt releases on the GitHub repository
Downloadable app	Downloadable app
Open source	Open source
License: BSD-3-Clause	License: CC0-1.0 OR Apache-2.0
No account needed	No account needed
Works offline	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.