Jubler
Jubler is a free and open source subtitle editor for creating, editing, and converting text-based subtitles.
About Jubler
Jubler is a free and open source subtitle editor for creating, editing, and converting text-based subtitles. It supports 20+ formats including SubRip, ASS/SSA and WebVTT, with VLC-based video preview, audio waveform visualization and an interactive timeline. It provides time shift, frame rate conversion, split and join, spell checking, quality validation and command-line batch tools. Written in Java 8, it officially supports macOS, Windows and Linux, requires VLC for preview and ASpell for spell checking, and is licensed under AGPL-3.0.
Pricing is not clearly stated.
Key features
- 20+ subtitle formats including SubRip, ASS/SSA, WebVTT, MicroDVD and TTML
- VLC-based video playback with real-time subtitle editing and frame preview
- Audio waveform visualization and interactive timeline with draggable blocks
- Time shift, frame rate conversion, split/join entries and files, regex find and replace
- Quality validation with configurable rules and TED guidelines compliance
- Translation mode with Azure Translator support and command-line batch tools
Jubler at a glance
- Website
- jubler.org
- Category
- Software & Utilities › Text Editors
- Type
- App
- Pricing
- Not confirmed. Check the site
- Platforms
- Linux, macOS, Windows
- Details verified
- Oct 22, 2026 · Official source
- Open source
- Yes · Source code
- Last checked
- Oct 5, 2026 · Online when checked
- Listed
- Oct 5, 2026
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