Jubler

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Score6.9

Rank#2 of 31

PriceFree

Free planYes

Runs onLinux, macOS, Windows

Summary

Jubler is a free, open-source subtitle editor for creating, editing, and converting text-based subtitles. It runs on Linux, macOS, and Windows and supports more than 20 formats, including SRT, ASS/SSA, WebVTT, TTML, ITT, DFXP, and YouTube subtitles. Editing tools include shifting timings, converting frame rates, splitting or joining entries and files, spell checking, and regular-expression search and replacement. Its timeline uses draggable subtitle blocks and two-point synchronization. With VLC, users can preview video and frames, view audio waveforms, and edit subtitles during playback. Jubler also offers configurable quality checks and TED guidelines checking. Translation mode supports Azure Translator, and command-line tools support batch processing and automation. Downloads include builds for Apple Silicon and Intel Macs, Windows, Linux x86_64 and arm64, and a generic Java version. VLC is required for video preview and waveforms; ASpell is suggested for spell checking. Jubler is licensed under AGPL-3.0.

Who it is for

Jubler suits people who need a desktop tool to create or convert subtitles across multiple formats. Its timeline, playback preview, translation mode, and command-line tools may suit both manual editing and batch workflows.

What is good

Supports more than 20 subtitle formats.
Exports SRT and VTT.
Timeline offers draggable blocks and synchronization.
Includes configurable quality checks.
Command-line tools support batch processing.

What to know first

VLC is required for video preview and waveforms.
Generic Java version lacks embedded preview.
Spell checking requires suggested ASpell integration.

Verdict

Jubler combines format support, playback-based editing, validation, and batch tools in a free desktop editor. Check the VLC requirement if you need video preview or audio waveforms.

Jubler plans and pricing

All plans

Free Free Free; the project relies exclusively on donations. Desktop subtitle editor · VLC required for video preview and audio waveform · Generic Java version does not support embedded preview jubler.org · 3 Oct 2026

Compared on subtitle software

Free plan: Yesjubler.org
Auto-captioning: Yesjubler.org
Subtitle translation: Yesjubler.org
SRT export: Yesjubler.org
VTT export: Yesjubler.org

Facts

Purpose: Jubler is a free, open source editor for creating, editing, and converting text-based subtitles.jubler.org · 3 Oct 2026
Formats: The homepage lists support for more than 20 subtitle formats, including SRT, ASS/SSA, WebVTT, TTML, ITT, DFXP, and YouTube subtitles.jubler.org · 3 Oct 2026
Editing: Editing tools include time shifting, frame rate conversion, splitting and joining entries or files, spell checking, and regular expression find and replace.jubler.org · 3 Oct 2026
Preview: Jubler provides VLC-based video and frame preview, audio waveform visualization, and real-time subtitle editing during playback.jubler.org · 3 Oct 2026
Timeline: Its interactive timeline has draggable subtitle blocks and two-point synchronization.jubler.org · 3 Oct 2026
Quality checks: Jubler offers configurable quality validation rules and TED guidelines compliance checking.jubler.org · 3 Oct 2026
Translation: The homepage lists translation mode with Azure Translator support.jubler.org · 3 Oct 2026
Integrations: The site lists VLC for video and audio preview and ASpell for spell checking; it also describes Azure Translator support.jubler.org · 3 Oct 2026
Automation: Jubler includes command-line tools for batch processing and automation.jubler.org · 3 Oct 2026
Privacy: Its privacy policy says no user data is collected and no usage information is sent to a service.jubler.org · 3 Oct 2026
Support: The contact page directs users to GitHub for issues and support.jubler.org · 3 Oct 2026
Platform downloads: The download page lists macOS builds for Apple Silicon and Intel, Windows, Linux builds for x86_64 and arm64, and a generic Java version.jubler.org · 3 Oct 2026
Preview requirement: The download page says VLC is required for video preview and audio waveform; ASpell is suggested for spell checking.jubler.org · 3 Oct 2026
License: The homepage states that Jubler is licensed under GNU Affero General Public License v3 (AGPL-3.0).jubler.org · 3 Oct 2026