Subtitle conversion for creators and editors
zer.ai supports focused subtitle tasks for common caption formats, including TXT to SRT, SRT to VTT, VTT to SRT, SRT to ASS and conversions involving SSA and SBV. Use TXT to SRT when a transcript needs an initial cue timeline, then use the subtitle editor, merger or timestamp tools to review and correct the result.
Check timing and styling after conversion
Subtitle formats do not support the same styling, positioning or timing features. Preview the first, middle and final cues after processing, and check that special characters and line breaks remain readable on the target video platform.
Browser-based caption processing
Supported subtitle tools process text locally in your browser and do not require an account. Keep a copy of the source caption file so you can restore timing or styling that the destination format cannot represent.
