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Gaupol vs Aegisub: catalog facts
Gaupol	Aegisub
Free Free and open source.	Free Free and open source.
Linux	Windows, macOS, Linux
Supports multiple text subtitle formats Tools for translating subtitles	Precise timing of subtitles to audio Detailed styling tools
Text-based subtitles only, no image subtitles Mainly aimed at Linux desktops	Interface takes time to learn Focused on subtitles, not general video editing
Downloadable app	Downloadable app
Open source	Open source
License not stated	License: BSD
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked September 23, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.