What does ASS format offer over SRT?

ASS (Advanced SubStation Alpha) supports rich styling including custom fonts, colors, positioning, effects, and karaoke timing. The converted file includes a default style that you can customize in any ASS editor like Aegisub.

Yes. This tool is completely free with no limits. Your file is processed in your browser and never uploaded to any server.

Do I need an account?

No account is required. The converter works instantly without signup.

Free tool · no signup required

SRT to ASS Converter

Convert SubRip (.srt) subtitle files to Advanced SubStation Alpha (.ass) format instantly. Free, private, and runs entirely in your browser.

Drop your .srt file here

or click to browse. SRT files supported.

When to use this tool

Add styling capabilities by converting plain SRT to ASS format.
Prepare subtitles for Aegisub or other ASS-compatible editors.
Quickly convert formats without installing desktop software.

FAQs

The converted ASS file includes a default style. You can customize fonts, colors, and effects in any ASS editor.
Your file never leaves your browser. All processing happens locally.
No file size limit and no daily cap — convert as many files as you need.