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STranslate vs CopyTranslator: catalog facts
STranslate	CopyTranslator
Free Free and open source under the MIT licence; some translation services may need their own…	Free Free and open source under GPL v2.
Windows	Windows
Compares results from many translation services in one query Built-in OCR that works without a network connection	Translates automatically on copy Fixes broken line breaks from PDF text
Windows only Website and documentation are mainly in Chinese	Project website is mainly in Chinese Translation quality depends on the online engines it uses
Downloadable app	Downloadable app
Open source	Open source
License: MIT	License: GPL-2.0
No account needed	Not stated if an account is needed
Not stated if it 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.