How to Fix Out-of-Sync Subtitles in 3 Simple Steps
Out-of-sync subtitles are a common issue for video editors, translators, and content creators when frame rates differ (e.g. 23.976 fps vs 25 fps). Using CanvaTools Subtitle Time Shifter, you can offset all timestamps forward or backward by exact seconds or milliseconds without re-encoding video.
Core Features for Video Creators & Translators
1. Convert SRT to WebVTT (VTT) for Web Video
HTML5 video elements require WebVTT (.vtt) format for captions. Convert standard SRT files to clean WebVTT syntax instantly.
2. Shift Subtitle Timestamps (+/- Seconds or Milliseconds)
Easily delay (+) or advance (-) subtitle timing. Use quick shortcut buttons (+0.5s, +1.0s, +5.0s) to synchronize timing perfectly.
3. Extract Clean Plain Text Script from SRT Files
Strip all timestamps, cue numbers, and HTML tags to generate a clean readable transcript for blog posts or translations.
4. Fix Subtitle Character Encoding & Tags
Automatically strip <i>, <b>, <font>, and ASS style formatting tags for clean cross-platform playback.
Frequently Asked Questions (FAQ)
How do I convert an SRT file to WebVTT (VTT)?
Upload your SRT file to CanvaTools Subtitle Converter, select VTT as the output format, and click Download. The conversion happens instantly in your browser.
How can I delay or speed up subtitles that are out of sync?
Use the Time Shifter tab to add or subtract seconds. For example, enter +2.5 to delay subtitles by 2.5 seconds if they appear too early.
Are my subtitle files stored on any remote server?
No. All text parsing, timestamp shifting, and conversions are executed 100% locally inside your web browser's RAM.
Can I extract plain text without timestamps from SRT files?
Yes. Select Plain Text (.txt) as your target format or click Copy Plain Text Script to extract clean readable scripts stripped of all timestamps and cue numbers.
Does this tool support HTML tag stripping in subtitles?
Yes. The Text & Tag Cleaner automatically strips HTML formatting tags like <i>, <b>, and <font> to generate clean text files.