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Free SRT Subtitle Time Shifter

Fix out-of-sync subtitles instantly. Shift all timestamps forward or backward by seconds or milliseconds with perfect mathematical precision.

Drag & drop a file here or paste your text below

Choose File (.srt, .vtt, .txt)

Shift Timecode Offset (seconds):
Use +1.5 to delay subtitles or -1.5 to make subtitles appear earlier.
Source Subtitle / Notes Input
Formatted Output
Multi-Language Data Export

Need to Export Subtitles in Multiple Languages Simultaneously?

Audify Studio's Multi-Language Data Export engine lets you generate, translate, and download per-language SRT/VTT files, dual-language bilingual subtitles, and structured CSV spreadsheets in one click.

SRT, VTT, CSV, DOCX Bundles•100+ Global Languages•Bilingual Side-by-Side Subtitles
Try Multi-Language Export in Studio

How to Offset Subtitle Timings

  1. 1Paste your SRT subtitles or drag and drop your .srt file into the box.
  2. 2Enter your time offset in seconds or milliseconds (use positive numbers to delay, negative to advance).
  3. 3Click 'Apply Offset' and download your synchronized .srt file.

Fix Audio Drift in Seconds

  • Millisecond Accuracy: Offset by +1.5s, -0.75s, or custom millisecond values without math errors.
  • Zero Clamping Protection: Automatically prevents start timestamps from dropping below 00:00:00,000.
  • Sequential Index Preservation: Keeps all cue numbers and formatting strictly intact.
  • Private & Instant: Everything calculates inside your browser memory.
Frequently Asked Questions

Frequently Asked Questions

How do I know how much to shift my subtitles?
Play your video in any media player and note the timestamp where the first dialogue is spoken versus when the subtitle appears. The difference is your offset.
What does a positive vs negative offset do?
A positive offset (+2.0s) makes subtitles appear later. A negative offset (-2.0s) makes subtitles appear earlier.
What happens if a negative shift drops below zero?
Our tool safely clamps start times to 00:00:00,000, ensuring your subtitle file remains valid and uncorrupted.
Is there a file upload limit?
No, since processing is done in-browser, you can shift subtitles of any file size in an instant.

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