Runs in your browser
Conversion happens locally with JavaScript — your caption file is never uploaded.
Free subtitle tool
SRT ↔ VTT converter that never uploads your file
Paste or drop a subtitle file, pick SRT or VTT, and download the result instantly. Conversion runs on your device — then open AutoCaptions when you want captions burned into the video.
Convert to
Runs entirely in your browser. Files are never uploaded.
No signup
Convert as many times as you need. Free, no watermark, no account wall.
SRT, VTT, and TXT
Switch formats or strip timings to plain transcript text in one pass.
Definition
What is an SRT to VTT converter?
An SRT to VTT converter turns SubRip subtitle files into WebVTT — and back — by fixing the header and timestamp separators while keeping your cue text and timing. SRT is the universal upload format; VTT is what HTML5 players expect.
- · Adds or removes the WEBVTT header
- · Swaps comma and dot timestamp separators
- · Keeps cue text and timing intact
When you need it
When platforms ask for the “other” file
YouTube Studio and most editors want SRT. HTML5 players, LMS embeds, and many web players want VTT. You should not rebuild captions from scratch just to change the container.
- · Export SRT from an editor, convert to VTT for the site
- · Download VTT from a player, convert to SRT for Studio
- · Keep unpublished dialogue on your device while you convert
How it works
Convert subtitles in three steps
No install. No queue. Paste or drop a file, choose the output, and download.
01
Add captions
Paste SRT or VTT into the box, or upload the file. Format is auto-detected.
02
Choose output
Pick SRT, VTT, or plain TXT. Conversion runs instantly on your device.
03
Copy or download
Copy the result or download a correctly named .srt, .vtt, or .txt file.
Who this converter is for
If the only job is switching subtitle formats, start here.
srt to vtt converter FAQ
How do I convert SRT to VTT? +
Paste or upload your .srt file above, choose VTT as the output, then copy or download. The tool adds a WEBVTT header and changes timestamp commas to dots.
What is the difference between SRT and VTT? +
SRT is the older, widely supported SubRip format with numbered cues and comma timestamps. VTT (WebVTT) starts with WEBVTT, uses dot timestamps, and is the web standard for HTML5 video tracks.
Is this converter private? +
Yes. Conversion runs entirely in your browser. Caption files are not uploaded to AutoCaptions servers.
Can I extract plain text from captions? +
Yes — choose TXT as the output to strip cue numbers and timestamps, leaving one transcript line per cue.
How do I burn captions into the video instead? +
Open the AI subtitle generator or home page, drop your clip, style captions, and export an MP4 with text that stays on the video.
Need captions on the picture?
Convert soft files here — then burn styled captions into an MP4 with AutoCaptions when you are ready to post.
Burn captions into your video