Jubler vs VideoLocalize

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.

VideoLocalize is a cloud-based video translation management system for coordinating translation timing, subtitles, voice-over, and audio/video synchronization. Word-count-per-minute guidance helps translators fit translated scripts within the original video's timeframe. Its karaoke-style voice-over method helps talent match the original speaker's timing, while collaboration features support communication and sentence-level tracking of translation and voice-over work. VideoLocalize offers auto-captioning and subtitle translation. The platform runs online without software installation, and voice talent can record in a browser. MP4 and AVI are among its supported video formats; SRT is the currently supported subtitle format. Users can download completed audio and video after synchronization. Logged-in users can save videos to Dropbox through Subtitle Burner, and the maker lists an API for integrating translation and dubbing into another product. The free plan includes one account, two jobs, videos up to four minutes, 1 GB storage, 10 minutes of machine transcription, and 30 minutes of auto-synchronization. Some features require a paid plan.