Stellar – Subtitling
SUBTITLE AUTHORING, EDITING AND QUALITY CONTROL – IN A BROWSER
Stellar for Subtitling brings a full suite of professional subtitling and captioning tools, directly in your web browser.
Created for professional subtitlers by industry experts.
No specialist equipment required just a PC or Mac to run Stellar for subtitling and captioning in your Chrome browser.
Create or import subtitle files
- Directly edit industry standard subtitle file formats
- Create your subtitle file either from scratch or based on an existing file or script
- Edit and time the subtitles
- Optionally use automated tools to align script files to the program audio
- Preview subtitles in sync with the video
- Convert to or from a wide range of industry standard file formats
Edit subtitles or captions
- View subtitles over the video, as text blocks and on the timeline
- A full range of tools to edit timing and text
- Timing
- Split and merge
- Spell checkers in all languages
- Full position and justification tools
- Vertical and horizontal
- Style and formatting tools for all subtitle formats
- Open, DVB, Teletext Closed Caption

AI tools for transcription, alignment and translation
- Use web services for
- Speech to text to create transcripts or subtitle files directly from an audio track
- Align untimed scripts using speech to text to create a timed subtitle file
- Use machine translation to create a draft translation
- Use machine translation to check the contents of multiple subtitle files during QC
- Use text detection to find captions and banners in the video and auto shift subtitle positions accordingly.

Multiple language file support
- Supports almost all world languages and script systems.
- Open many language files at the same time
- Check timing between languages
- Conform all languages at the same time to match video edits
- Powerful retiming tools to simplify conforming