ASS Subtitle Inspector

Inspect the structure, styles, events, timing, margins, layers, attachments and normalized warnings in an ASS or SSA subtitle file.

Subtitle file UTF-8 text, up to 1 GB. ASS/SSA signatures and grammar are verified.

Subtitle text

Private inspection result

Values shown here stay in this uploader response. Filenames, cue text, titles, names, fonts, tags and timestamps are excluded from analytics and logs.

Compatibility, not lossless conversion

SRT cannot represent ASS styles, karaoke timing, drawings, transforms, complex positioning, embedded fonts or graphics, and many override tags. WebVTT support varies by player. Unsupported syntax is removed and listed in the loss manifest instead of becoming visible caption text.

Private and bounded processing

Only the subtitle content you provide is parsed. The tool does not fetch fonts, follow URLs, execute attachments, translate text, render subtitles into video, or accept archives and scripts.

ASS Subtitle Inspector

Inspect verified ASS v4+ and legacy SSA v4 structure without mutating the source.

Input: One UTF-8 ASS or SSA text/file within the 1 GB upload limit.
Output: A private structure, style, event, timing, attachment, and warning report.
Real limitations: Inspection does not render subtitles, fetch fonts, execute attachments, translate dialogue, or prove player compatibility.
Privacy and data handling: one UTF-8 ASS or SSA text/file within the 1 GB upload limit is uploaded to a compatible Convertr worker only after you start the operation. Processing is automated, and temporary source and result files are deleted automatically after processing rather than retained as permanent storage.

How to use this tool

Choose one UTF-8 ASS or SSA text/file within the 1 GB upload limit and wait for the page to validate it.
Set the available output or inspection options, then start processing.
Review the reported result and download a private structure, style, event, timing, attachment, and warning report before the temporary link expires.

Common failure modes

Missing required sections, malformed event formats or timestamps, and unsafe line or record expansion fail explicitly.

Useful example

Upload an SSA archive caption track to review its resolution, styles, event types, overlaps, actors, margins, marked values, and embedded sections.