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RHash vs b3sum: catalog facts
RHash	b3sum
Free Free and open source under the 0BSD licence.	Free Free and open source, dual-licensed under CC0 and Apache 2.0.
Windows, Linux, Command line	Windows, Command line
Supports a wide range of hash algorithms Calculates several hash sums in one pass	Familiar sha256sum-style interface BLAKE3 hashing is fast on large files
Command line only, no graphical interface Many listed algorithms are legacy or niche	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: 0BSD	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.