Subtitle Converter

Convert SRT, VTT, ASS, SBV subtitles — 100% in-browser, no upload

Input Format

Output Format

📂

Drop subtitle file here or click to browse

.srt .vtt .ass .ssa .sbv supported

Batch Convert Multiple Files

Uses the current output format, time offset and formatting options below.

Time offset (ms)

Strip inline formatting

Format Reference

SRT

1
00:00:01,000 --> 00:00:04,000
Hello, World!

2
00:00:05,000 --> 00:00:08,000
Second subtitle

VTT

WEBVTT

00:00:01.000 --> 00:00:04.000
Hello, World!

00:00:05.000 --> 00:00:08.000
Second subtitle

Frequently Asked Questions

Which subtitle formats are supported?

SRT, WebVTT, ASS/SSA and YouTube SBV — convert between any of them in either direction.

How do I fix subtitles that are out of sync?

Use the time offset field, or the quick ±100ms / ±1s buttons, to shift every subtitle line earlier or later until it matches the video.

Is my subtitle file uploaded anywhere?

No, the conversion runs entirely in your browser — the file never leaves your device.

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