The continued existence of this project relies exclusively on donations.
Jubler is a free and open source subtitle editor for creating, editing, and converting text-based subtitles. It provides tools for authoring new subtitles and refining existing ones with video preview, quality validation, and extensive format support.
Key Features:
- 20+ subtitle formats including SubRip (SRT), Advanced SubStation Alpha (ASS/SSA), WebVTT, MicroDVD, SubViewer, MPL2, TTML, ITT, DFXP, and YouTube subtitles
- FFmpeg integration for frame preview and audio waveform visualization
- MPlayer support for video playback with real-time subtitle editing
- Interactive timeline with draggable subtitle blocks and two-point synchronization
- Enhanced preview controls with shift/alt key support and snapping functionality
- Comprehensive editing tools: time shift, frame rate conversion, split/join entries and files, spell checker, regex find & replace
- Quality validation with configurable rules and TED guidelines compliance checking
- Character and paragraph-level styling for advanced formats
- Translation mode with Azure Translator support
- HiDPI support with adjustable scaling and dark theme
- Command-line tools for batch processing and automation
Licensed under the GNU Affero General Public License v3 (AGPL-3.0). Written in Java 8 for cross-platform compatibility. Officially supports macOS, Windows, and Linux.
Optional external applications: MPlayer for video preview and ASpell for spell checking.
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Sponsors
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