Subtitle Time Sync
Fix subtitle timing issues instantly with our free online synchronization tool. Add or subtract time offset to perfectly align subtitles with audio. Supports all major formats including SRT, VTT, ASS, and more. All processing happens locally for complete privacy.
Sync Your Subtitle Files
Drag and drop your subtitle files or click to select them. Adjust timing with millisecond precision.
Drag and drop subtitle files here
Supports SRT, VTT, and ASS formats
How to Sync Subtitle Timing
Follow these simple steps to precisely adjust your subtitle timing
Upload Your Files
Click the upload area or drag and drop your subtitle files. We support all major formats including SRT, VTT, ASS, SSA, SMI, SUB, and TXT.
Tip:
You can upload multiple subtitle files for batch timing adjustment. Each file supports up to 50MB.
Set Time Offset
Enter the time offset in milliseconds. Use positive values to shift subtitles forward, negative values to shift backward.
Tip:
If subtitles are 2 seconds behind speech, enter +2000. If 2 seconds ahead, enter -2000. You can make coarse adjustments first, then fine-tune.
Sync and Download
Click the sync button and download your perfectly timed subtitle files instantly.
Tip:
Synced files maintain original format and styling, only adjusting timestamps. Download individually or get a zip package.
No registration required, completely free to use
Advanced Subtitle Timing Features
Professional-grade synchronization tools
Millisecond Precision
Adjust subtitle timing with millisecond-level accuracy for perfect synchronization with audio tracks.
Universal Format Support
Works with all popular subtitle formats including SRT, VTT, ASS, SSA, SMI, SUB, and TXT files.
Batch Processing
Synchronize multiple subtitle files simultaneously with the same time offset for efficient workflow.
About Our Subtitle Timing Synchronizer
Our subtitle time sync tool is the most accurate solution for fixing subtitle timing issues. Whether your subtitles are appearing too early or too late, our tool can adjust the timing with millisecond precision to ensure perfect synchronization.
Common Timing Issues
Subtitle timing problems are common when dealing with different video sources:
- Subtitles appearing before the spoken words (negative offset needed)
- Subtitles lagging behind the audio (positive offset required)
- Frame rate differences causing gradual desynchronization
How Our Tool Helps
Our synchronization tool provides professional-grade solutions:
- Precise millisecond-level timing adjustments
- Maintains original subtitle formatting and styling
- Processes files locally for complete privacy and security
Fix your subtitle timing issues now
Join thousands of users who have perfectly synchronized their subtitles with our free timing tool.
Sync Subtitles