Subtitle Converter
Convert subtitles between SRT, VTT and ASS formats with time offset adjustment. Free online tool with no file size limit.
Drag and drop your subtitle file here
SRT, VTT, ASS, SBV
Positive = shift forward, negative = shift back
| # | Timecode | Text |
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Subtitle Converter — Convert Between SRT, VTT, ASS, and SUB Formats
The Subtitle Converter converts subtitle files between the most popular formats: SRT (SubRip), VTT (WebVTT), ASS/SSA (Advanced SubStation Alpha), and SUB (MicroDVD). Upload your subtitle file, choose the target format, and download the converted result with preserved timing and text.
The tool parses each subtitle entry — index, timestamps, and text content — and remaps them to the target format's syntax. It handles format-specific features like WebVTT cue settings, ASS style overrides, SRT HTML tags, and frame-based timing in SUB files. Timestamp precision is maintained down to the millisecond across all conversions.
Video editors convert subtitles between formats required by different editing software (Premiere, DaVinci, etc.). Content creators prepare subtitles for multiple platforms — SRT for YouTube, VTT for HTML5 video players, ASS for anime fansubs. Translators convert client-provided subtitles to their preferred working format.
Subtitle Converter is part of the facilita.tools suite of free browser-based media utilities. Available in Portuguese, English, and Spanish, optimized for desktop and mobile browsers.