Minitooler

Convert subtitle files

Convert subtitle files between SRT, WebVTT, ASS/SSA, SBV, SUB, SMI, and LRC. Shift timing, auto-fix broken æ/ø/å encoding, all 100% in your browser.

Free tier: 3 conversions per day, files up to 10.00 MB. Go Pro for $5/mo for unlimited use and larger files.

What people use it for

  • Convert SRT to VTT for YouTube, Vimeo, or a custom HTML5 video player.
  • Turn ASS/SSA anime subtitles into plain SRT for a TV or media player that doesn't handle styling.
  • Fix subtitles that are 2 seconds ahead or behind the audio without opening a video editor.
  • Repair broken æ, ø, å, é, ü characters in .srt files saved in the wrong encoding.
  • Export YouTube auto-generated .sbv captions to .srt for Premiere Pro or DaVinci Resolve.
  • Convert song .lrc lyrics files between formats for karaoke apps.

Free online subtitle converter for every common caption format: SRT to VTT, VTT to SRT, ASS to SRT, SSA to SRT, SBV to SRT, SUB to SRT, SMI to SRT, and back again. Drop a file in the box above, pick the target format, and download — no signup, no upload, no watermark.

If YouTube handed you a .sbv, your video editor wants .srt, your HTML5 player needs .vtt, and the anime rip you downloaded is in .ass, this is the fastest way to get everything into the same format. It also fixes the classic broken æ, ø, å, é, ü problem in older subtitle files by auto-detecting Windows-1252 / ANSI encoding and re-saving as clean UTF-8.

Subtitles arrive out of sync with the video? Use the built-in subtitle time shifter to nudge every cue forward or backward by any number of seconds — positive to delay, negative to move earlier — and download the resynced file. It's a full caption converter and resyncer that runs entirely in your browser, so private company recordings, unreleased videos, and confidential material never leave your machine.

How it works

  1. 1

    Drop your subtitle file

    Drag any .srt, .vtt, .ass, .ssa, .sbv, .sub, .smi, or .lrc file into the box. We auto-detect the format and encoding.

  2. 2

    Pick target format and shift

    Choose what you want out, optionally shift every cue by a number of seconds to fix sync.

  3. 3

    Download

    Get a clean UTF-8 file in the target format, ready for YouTube, your video editor, or your media player.

Frequently asked questions

SRT (SubRip), VTT (WebVTT), ASS and SSA (Advanced SubStation Alpha), SBV (YouTube), SUB (MicroDVD), SMI (SAMI), and LRC (lyrics). You can convert between any of them in either direction.

Want this converter on your website?

Pro members can embed any Minitooler converter on their own site — styled to match, with no branding beyond a small credit link. One iframe, unlimited use, still 100% in the browser.

Unlock embeds — $5/mo
Accent color
Theme
Background
Text color
Width
Height
Embeds are a Pro feature

Upgrade to unlock a customizable iframe snippet you can paste into any website — colors, theme, and size all tuned to match your brand.

Go Pro — $5/mo