Jubler vs Zubtitle

Jubler is a free, open-source desktop editor for creating, revising and converting text-based subtitles. It runs on Linux, macOS and Windows and handles more than 20 subtitle formats, including SRT, ASS/SSA, WebVTT, TTML, ITT, DFXP and YouTube subtitles. Users can shift timing, convert frame rates, split or join entries and files, check spelling, and search and replace with regular expressions. A timeline with draggable subtitle blocks supports two-point synchronization. With VLC, Jubler can preview video and frames, show audio waveforms and let users edit subtitles during playback. Quality tools include configurable validation rules and TED guidelines checks. Translation mode supports Azure Translator, and command-line tools are available for batch work and automation. Downloads include builds for Apple Silicon and Intel Macs, Windows, Linux x86_64 and arm64, as well as a generic Java version. VLC is required for video preview and audio waveforms; ASpell is suggested for spell checking. Jubler is licensed under AGPL-3.0.

Zubtitle is a video captioning tool available on the web, iOS and Android. It supports captions in 59 languages, caption styling and brand presets. Captions can be burned into a video, or subtitles can be exported in other formats. The maximum video length is 20 minutes. Its free Bootstrapper plan costs nothing and permits two videos per month, with a Zubtitle watermark and resolutions up to 720p. Guru costs $19 a month for 10 videos per month; it removes the watermark, supports resolutions up to 4K and includes premium support. Annual billing for Guru is listed at $190 per year. Agency costs $49 a month and allows 30 videos per month, also without a watermark and with resolutions up to 4K and premium support. Annual billing for Agency is listed at $490 per year. The plan differences are mainly monthly video allowance, watermark removal, resolution and premium support.