ASS → JSON
Convert ASS to JSON
Free online ASS to JSON subtitle converter. Transform Advanced SubStation Alpha (.ass) files to JSON (.json) format instantly in your browser. No upload required.
Format Comparison
| ASS | JSON | |
|---|---|---|
| Full Name | Advanced SubStation Alpha | JSON |
| Extension | .ass | .json |
| Category | text | data |
| Key Features | Advanced styling, Font embedding, Animation effects, Multiple style definitions, Positioning control | Structured data, Multiple timing formats, API-ready, Machine-readable |
| Common Uses | Anime subtitles, Fansubs, Karaoke effects, Styled presentations | API integration, Custom pipelines, Programmatic processing, Data interchange |
| Limitations | Complex syntax, Not universally supported, Large file sizes with effects | Not a playback format, No standard schema, Requires custom import |
How to Convert ASS to JSON
- 1
Open the subtitle converter
Go to the Subtitle Tool and select your source ASS file by pasting the text or uploading the .ass 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 ASS to JSON?
Upload or paste your Advanced SubStation Alpha (.ass) 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 ASS and JSON?
ASS is ass (advanced substation alpha) is a feature-rich subtitle format popular in anime fansubbing. 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 advanced styling (ASS) versus structured data (JSON).
Is the ASS 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 ASS 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 advanced styling and font embedding may not carry over.