IMSC → JSON
Convert IMSC to JSON
Free online IMSC to JSON subtitle converter. Transform IMSC (Netflix Timed Text) (.xml) files to JSON (.json) format instantly in your browser. No upload required.
Format Comparison
| IMSC | JSON | |
|---|---|---|
| Full Name | IMSC (Netflix Timed Text) | JSON |
| Extension | .xml | .json |
| Category | xml | data |
| Key Features | TTML-based, Netflix compliance, Rich styling, Region positioning, Precise timing | Structured data, Multiple timing formats, API-ready, Machine-readable |
| Common Uses | Netflix delivery, Streaming platforms, Professional localization, Broadcast-to-streaming workflows | API integration, Custom pipelines, Programmatic processing, Data interchange |
| Limitations | Complex XML structure, Strict validation requirements, Requires TTML knowledge | Not a playback format, No standard schema, Requires custom import |
How to Convert IMSC to JSON
- 1
Open the subtitle converter
Go to the Subtitle Tool and select your source IMSC file by pasting the text or uploading the .xml 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 IMSC to JSON?
Upload or paste your IMSC (Netflix Timed Text) (.xml) 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 IMSC and JSON?
IMSC is imsc (internet media subtitles and captions) is a w3c profile of ttml used by netflix and other streaming platforms. 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 ttml-based (IMSC) versus structured data (JSON).
Is the IMSC 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 IMSC 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 ttml-based and netflix compliance may not carry over.