Truly local processing
Subtitle files never leave your browser, reach a server, get stored, or get tracked.
Local conversion · No signup · Ready instantly
Subtitle conversion, done in one simple step
Quickly convert between SRT, VTT, LRC, ASS, SSA, TXT, and JSON. No uploads: timelines and subtitle text stay on your device.
Format support
Built for common subtitle workflows
Every format uses a unified timeline model, enabling conversion between any two supported formats.
SubRip Subtitle
The most widely supported subtitle format for players and video platforms
WebVTT
Designed for web video and HTML5 players
LyRiCs
A timestamped lyrics format commonly used by music players
Advanced SubStation Alpha
An advanced subtitle format with rich styling and positioning
SubStation Alpha
The classic SubStation Alpha v4 subtitle format
Plain Text
Plain subtitle or dialogue text without a timeline
Structured JSON
Structured data for programmatic processing and interchange
Why choose us
Everything you need to convert
Fast and accurate
A unified timeline parser recognizes milliseconds and common timestamp formats automatically.
Responsive everywhere
Edit comfortably on desktop, or paste, convert, and download anytime on mobile.
How it works
Convert subtitles in three steps
Choose formats
Select the current subtitle format and the format you want to export.
Add subtitles
Drop in a subtitle file or paste subtitle text directly.
Download result
Review the converted output and download the new file in one click.
FAQ
About local subtitle conversion
Are subtitle files uploaded to a server?+
No. Parsing, conversion, and downloads all happen locally in your browser.
Which subtitle formats are supported?+
SRT, VTT, LRC, ASS, SSA, TXT, and JSON can currently be converted to one another.
Does ASS conversion preserve every style?+
ASS conversion preserves text and timelines, but not complex styling and positioning.