VTT → JSON
Convert VTT to JSON
Free online VTT to JSON subtitle converter. Transform WebVTT (.vtt) files to JSON (.json) format instantly in your browser. No upload required.
Format Comparison
| VTT | JSON | |
|---|---|---|
| Full Name | WebVTT | JSON |
| Extension | .vtt | .json |
| Category | text | data |
| Key Features | CSS styling support, Cue positioning, Region definitions, HTML5 native support | Structured data, Multiple timing formats, API-ready, Machine-readable |
| Common Uses | HTML5 video, Web streaming, HLS/DASH manifests, Browser-based players | API integration, Custom pipelines, Programmatic processing, Data interchange |
| Limitations | Limited legacy player support, More complex than SRT, Browser rendering varies | Not a playback format, No standard schema, Requires custom import |
How to Convert VTT to JSON
- 1
Open the subtitle converter
Go to the Subtitle Tool and select your source VTT file by pasting the text or uploading the .vtt file.
- 2
Set your framerate
Choose the framerate that matches your video (e.g., 23.976, 25, 29.97). This ensures frame-accurate timestamp conversion.
- 3
Select JSON as output format
Choose JSON (.json) from the output format dropdown.
- 4
Download your converted file
Click the download button to save your converted JSON file. You can also copy the output text directly.
Frequently Asked Questions
How do I convert VTT to JSON?
Upload or paste your WebVTT (.vtt) file into the converter, select JSON as the output format, and click Convert. The tool processes everything in your browser — no file uploads to a server.
What is the difference between VTT and JSON?
VTT is webvtt (web video text tracks) is the w3c standard for displaying timed text in html5 video. JSON is json export provides subtitle data as structured objects with all timing formats (frames, milliseconds, timecodes) — ideal for programmatic processing and api integration. They differ in features like css styling support (VTT) versus structured data (JSON).
Is the VTT to JSON converter free?
Yes, completely free with no limits. The converter runs entirely in your browser using the timecodes library — no server processing, no sign-up, no watermarks.
Will I lose formatting when converting from VTT to JSON?
JSON has some limitations: not a playback format. Timing accuracy is preserved using frame-based conversion through the timecodes library, but format-specific features like css styling support and cue positioning may not carry over.