Gaupol
Gaupol: A capable free subtitle editor for Linux users who need core text and timing tools. Ranked #22 of 30 in Subtitle Software by our editors (7.1/10); pricing: Free plan; best for free cross-platform basic subtitle editing.
At a glance
- Editor score7.1 / 10
- PricingFree plan
- Best forFree cross-platform basic subtitle editing
- Free planYes
- Paid fromFree
- Facts checked22 Sep 2026
Where it wins
- Free and open-source subtitle editing for Linux and Windows
- Supports both SRT and WebVTT reading and writing
- Includes translation, timing, error correction, and video preview
Where it doesn't
- Windows installers are no longer built
- The latest Windows version has reduced functionality
- The built-in video player does not work on Windows
Our verdict on Gaupol
Gaupol is a free, open-source desktop application for creating and editing text-based subtitle files. It is aimed at people who need core subtitle work on Linux or Windows, including writing dialogue, translating content, adjusting timing, correcting common errors, and checking subtitles against video. The application supports SubRip (SRT) and WebVTT files, making it suitable for workflows built around those formats. Its GNU General Public License distribution also makes it a practical choice for users seeking an open-source subtitle editor rather than a paid service.
The feature set is focused but useful. Gaupol can handle subtitle timing adjustments to match video, and translation is supported through a separate translation document rather than being presented as an automated translation service. For review, it offers an integrated video player and can also launch an external video player. Those tools give the application a broader editing workflow than a basic text editor, while common-error correction helps address routine subtitle cleanup. Users working primarily with SRT or WebVTT files will find the format support aligned with common text-based subtitle tasks.
Platform fit is the main consideration. Linux users get the clearest match for Gaupol’s desktop editing feature set, while Windows users face a more limited experience: installers are no longer built, the latest Windows version is 1.3.1, and some functionality, including the built-in video player, does not work there. Choose Gaupol if you want a free, open-source editor for subtitle text, translation documents, timing, error correction, and SRT or WebVTT files. Choose an alternative if Windows support, an available installer, or built-in video playback on Windows is central to your workflow.
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Gaupol pricing
Gaupol fact sheet
| Free plan | Yes |
|---|---|
| Paid from | Free |
| Max video length | Not verified |
| Auto-captioning | Not verified |
| Subtitle translation | Yes |
| Speaker labels | Not verified |
| SRT export | Yes |
| VTT export | Yes |
| Deployment | Desktop |
| Platforms | Linux, Windows |
| Support | Community, Docs |
| Built for | Solo, Small business (editorial estimate) |
| Pricing | Free plan |
| Website | otsaloma.io |
| Facts checked | 22 Sep 2026 |
Alternatives to Gaupol
- Subtitle EditA broad, free subtitle toolkit for local editing, transcription, translation, and video processing.9.4
- SRTGenA broad subtitle toolkit for creators who need transcription, localization, and exports.9.2
- EditsubEditsub combines broad subtitle tools, collaboration, and a low-cost annual Pro plan.9.0
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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
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