Subtitle Shifter
Free Online Subtitle Timing Tool
Adjust subtitle timing by shifting all timestamps forward or backward. Perfect for fixing out-of-sync subtitles.
Drop subtitle files here
or Browse Files
Supported: SRT, VTT, ASS, SSA, SMI, SUB
Max 10MB per file
How to Shift Subtitles
Fix subtitle timing in simple steps
Upload Subtitle Files
Drag and drop or browse to select your SRT, VTT, ASS, or SSA subtitle files. Batch processing supported.
Set Time Shift
Enter the time shift in milliseconds or use quick presets. Positive delays, negative advances.
Apply Time Shift
Click 'Apply Time Shift' to adjust all timestamps. Processing happens instantly in your browser.
Download Results
Get your synced subtitle files instantly. Download individually or as a ZIP for batch processing.
Why Use Our Subtitle Shifter?
Fix out-of-sync subtitles with precision timing
Millisecond Precision
Fine-tune timing with millisecond accuracy for perfect sync.
Quick Presets
Common timing adjustments available with one click.
Batch Processing
Shift multiple subtitle files at once with the same timing.
Format Preserved
Original subtitle format and styling are maintained.
Supported Subtitle Formats
Shift timing for all major subtitle formats
Input Formats
Upload subtitles in any of these supported formats
Output Formats
Download shifted subtitles in the same format
Related Subtitle Tools
Explore other professional subtitle tools
Frequently Asked Questions
How do I know if subtitles are early or late?
If subtitles appear before the dialogue, they're early (use positive shift to delay). If they appear after, they're late (use negative shift to advance).
What does positive vs negative shift mean?
Positive values (e.g., +2000ms) delay subtitles, making them appear later. Negative values (e.g., -2000ms) advance subtitles, making them appear earlier.
Can I shift only part of the subtitles?
Currently, the shifter adjusts all subtitles equally. For partial adjustments, consider using video editing software.
Will this change the format of my subtitles?
No, the output format remains the same as the input. Only the timestamps are adjusted.