Subtitle Conversion

Convert ASS to VTT

Convert .ass files to .vtt format locally on your desktop. Fast, private, completely offline. Nothing leaves your machine.

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.ass
Input
LOCAL
.vtt
Output

How to convert ASS to VTT

1

Open dotformat

Launch the app and drag your .ass file into the window.

2

Select VTT

Choose VTT from the format picker. It'll be auto-suggested for subtitle files.

3

Done

Click convert and your .vtt file is saved instantly.

About subtitle conversion

Seamless subtitle format conversion. Timing, styling, and encoding handled automatically.

All subtitle conversions run entirely on your device. No files are uploaded. Your data stays private.

Key details

Input format: .ass (ASS)

Output format: .vtt (VTT)

Category: Subtitle

Processing: 100% local

File size limit: None

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