.ass.sub

Convert ASS to SUB

Free, fast, and secure online conversion from ASS to SUB. No watermarks, no registration required.

How to convert ASS to SUB

1. Upload ASS

Select or drag and drop your ASS file into the converter.

2. Choose SUB

Select SUB as your output format. You can process multiple files at once.

3. Download

Click convert and download your new SUB file instantly.

Format Details

.ass

ASS

ASS (Advanced SubStation Alpha) is a feature-rich subtitle format supporting sophisticated text styling including custom fonts, colors, borders, shadows, precise on-screen positioning, and karaoke timing effects. It is the dominant format for anime fansubbing and professional subtitling where fine-grained typographic and positioning control is essential. ASS subtitles can include multiple simultaneous text layers and complex motion effects.

subtitle
.sub

SUB

SUB (MicroDVD Subtitle) is a subtitle format that stores timing as video frame numbers rather than absolute timestamps, making it intrinsically frame-rate dependent. Each subtitle entry uses curly-brace notation for frame numbers and supports basic inline formatting. SUB is a legacy format from the DVD ripping era that is still supported by major media players, though SRT and VTT have largely replaced it for new subtitle content.

subtitle

Frequently Asked Questions

How do I convert ASS to SUB?

Upload your ASS file on Convertek, select SUB as the output format, then click Convert. Your SUB file will be ready to download instantly.

Is the ASS to SUB converter free?

Yes. Converting ASS to SUB on Convertek is completely free with no watermarks. Fair upload limits apply (typically 30 MB per file).

Is my file kept after conversion?

No. Files are processed temporarily and not stored permanently. Converted downloads are available only in your browser session.

What is the difference between ASS and SUB?

ASS and SUB are different file formats with distinct use cases. Converting between them lets you use your file in software or workflows that require the SUB format.