How is frame timing converted?

The tool uses standard 23.976 FPS for frame-to-time conversion. You can adjust FPS in advanced settings.

SUB to SRT

Free online SUB to SRT converter. Convert MicroDVD (SUB) subtitle files to standard SRT format with accurate timing conversion.

Drop your subtitle file here

or browse files

Supports SRT, VTT, ASS, SUB, TXT, JSON

How to Use SUB to SRT

Upload your SUB file. The tool converts frame-based timing to standard timecodes and outputs clean SRT format.

Upload

Upload your subtitle file or paste the content

Process

The tool processes your subtitles instantly

Review

Check the output in the preview or output tab

Export

Copy the result or download as a file

Common Use Cases

Converting old MicroDVD subtitles

Upgrading legacy subtitle collections

Making SUB files compatible with modern players

Standardizing subtitle format across a library

About SUB to SRT

Free online SUB to SRT converter. Convert MicroDVD (SUB) subtitle files to standard SRT format with accurate timing conversion.. Our SUB to SRT tool provides a fast, reliable, and completely free solution that works entirely in your browser. No server uploads, no registration, and no usage limits.

Whether you are a professional video editor, a content creator, or someone who needs to work with subtitles occasionally, our tool is designed to be intuitive and efficient. The processing happens instantly, and you can see the results in real-time.

Why Choose Our SUB to SRT Tool?

100% free with no hidden charges or premium tiers for basic features
Privacy-first: all processing happens in your browser
No registration or account required
Support for all major subtitle formats
Instant processing with real-time preview
Clean, professional interface designed for productivity

Frequently Asked Questions