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LunaTranslator vs CopyTranslator: catalog facts
LunaTranslator	CopyTranslator
Free Free and open source under the GPL-3.0 licence.	Free Free and open source under GPL v2.
Windows	Windows
Text hooking works with a very wide range of visual novels OCR and clipboard modes for anything hooking cannot reach	Translates automatically on copy Fixes broken line breaks from PDF text
Windows only Much of the community support is 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: GPL-3.0	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.