SRT → VTT
SRT to VTT Converter
Convert SubRip subtitle files into WebVTT format for HTML5 video and browser players.
Open toolConvert, fix, and clean
subtitle files in your browser.
Subtitle Toolkit gives you fast, free tools for SRT, VTT, and ASS conversion, timing fixes, and format cleanup. No signup, no server upload — everything runs locally.
- Free forever
- No signup
- Browser-local processing
Core tools
Start with the jobs people actually search for.
Convert, shift, clean, and repair subtitle files without opening a heavy video editor or uploading them to a server.
VTT → SRT
VTT to SRT Converter
Turn WebVTT captions into numbered SubRip blocks that work with older editors and players.
Open tool SRT → ASS
SRT to ASS Converter
Convert simple SubRip captions into ASS format for workflows that need style-ready subtitle files.
Open tool ASS → SRT
ASS to SRT Converter
Flatten ASS dialogue lines into simple SubRip subtitles for broader compatibility.
Open tool VTT → ASS
VTT to ASS Converter
Convert browser-friendly WebVTT captions into ASS format for editing and advanced subtitle workflows.
Open tool ASS → VTT
ASS to VTT Converter
Convert ASS subtitles into WebVTT for browser playback and HTML5 video workflows.
Open toolBuilt for trust and speed.
No server upload
Files never leave your browser. All processing happens locally, so privacy is built in by default.
Instant processing
No waiting, no queueing. Paste or upload a file and get results immediately.
Free forever
No signup, no limits, no paywall. Every tool is completely free to use, now and always.
Popular guides
Learn what format to use and when.
ASS vs SRT
Understand when ASS makes sense, when SRT is enough, and how to choose between them for delivery or editing.
Read guideBest subtitle format for HTML5 video
Learn why WebVTT is usually the safest subtitle format for HTML5 video players and when to convert from SRT or ASS.
Read guideBest subtitle format for YouTube
Choose the right subtitle format for YouTube uploads and understand when to convert between SRT and VTT.
Read guideCommon subtitle format errors and fixes
Common subtitle formatting mistakes, what usually causes them, and how to clean or convert files before delivery.
Read guideCommon questions
Is this really free?
Yes. All tools are completely free with no limits, no signup, and no hidden paywall.
Are my files uploaded anywhere?
No. All processing happens locally in your browser. Your files never leave your device.
What subtitle formats are supported?
SRT, VTT (WebVTT), and ASS. You can convert between any of these formats, shift timing, and clean up formatting.
Do I need to create an account?
No. There is no login, no account, and no email required. Just open a tool and start using it.