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RapidCRC Unicode vs RHash: catalog facts
RapidCRC Unicode	RHash
Free Free and open source under the GPL.	Free Free and open source under the 0BSD licence.
Windows	Windows, Linux, Command line
Multithreaded hashing with asynchronous I/O Unicode-aware SFV and checksum files	Supports a wide range of hash algorithms Calculates several hash sums in one pass
Windows only Source code documentation is sparse	Command line only, no graphical interface Many listed algorithms are legacy or niche
Downloadable app	Downloadable app
Open source	Open source
License: GPL-2.0	License: 0BSD
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.