Can I customise the style?

Yes — the default Style line in the [V4+ Styles] section is easy to edit, or you can restyle everything in Aegisub.

Are line breaks preserved?

Yes. Multi-line cues are converted using the ASS \N line-break marker.

No. Conversion runs entirely in your browser.

Convert SRT to ASS

Convert .srt subtitles to Advanced SubStation Alpha (.ass) with a ready-made default style — for Aegisub and styled overlays, all local.

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What is ASS?

Advanced SubStation Alpha (.ass) is a subtitle format that supports styling — fonts, colours, positioning and karaoke effects — used by Aegisub and fansub workflows.

Why convert SRT to ASS?

Starting from .ass lets you restyle plain SubRip captions: change the font, add an outline, reposition text, or build karaoke timing. This tool gives you a clean base file to edit in Aegisub.

What you get

A valid .ass file with a complete [Script Info], [V4+ Styles] and [Events] section. Each SRT cue becomes a Dialogue line using a sensible default style you can customise.

How to srt to ass

Drop your .srt file into the zone above, or browse to select it.
Press Convert. The .ass file is built locally.
Open the result in Aegisub to restyle or reposition your subtitles.

Related converters

ASS to SRTFlatten styled ASS subtitles to plain SubRip.SRT to VTTConvert SubRip subtitles to WebVTT for the web.VTT to SRTConvert WebVTT captions back to SubRip .srt.SUB to SRTConvert frame-based MicroDVD .sub to timed .srt.