Fix Subtitle Timing and Drift

Created by

François Fernandez

Actor

Subtitle Converter & Resync — SRT/VTT/ASS

Fix subtitle delay or gradual timing drift in SRT, VTT, ASS, or SSA files. Paste your subtitle text, choose a simple offset or two-point resync, and export corrected subtitles.

Try for free

Subtitle Converter & Resync — SRT/VTT/ASSlumaxys/subtitle-converter-and-resync

File

Detected format

Cues

Retiming applied

+4 fields

Input

Paste your subtitles here — easiest option:1 00:00:02,000 --> 00:00:05,000 Welcome to this subtitle timing example. 2 00:00:15,000 --> 00:00:18,000 This subtitle gradually moves out of sync. 3 00:00:30,000 --> 00:00:34,000 We can correct both delay and timing drift. 4 00:00:55,000 --> 00:00:59,000 The corrected file will stay aligned to the video.

First line — current timestamp:00:00:02,000

First line — correct timestamp:00:00:03,000

Last line — current timestamp:00:00:55,000

Last line — correct timestamp:00:01:00,000

Output fields

File

Detected format

Cues

Retiming applied

Clamped

Dropped

Files written

Error

How it works

Sign up on Apify or log in

The Subtitle Converter & Resync — SRT/VTT/ASS Actor is ready to run with the inputs already set for "Fix Subtitle Timing and Drift". Sign up or log in and you'll land in Apify Console with a copy of this exact task.

Start the "Fix Subtitle Timing and Drift" task

The Subtitle Converter & Resync — SRT/VTT/ASS Actor will start running based on the input automatically. You can also change all the input fields, like paste your subtitles here — easiest option, first line — current timestamp, and more, to match your specific use case.

Receive the "Fix Subtitle Timing and Drift" output

Monitor the progress in real time. You will be notified as soon as your dataset is complete and ready for review. Each result includes data such as file, detected format, cues, and more.

Integrate into your workflow

The final output is delivered in JSON, CSV, or Excel format, ready to be plugged into your workflow. You can also run the "Fix Subtitle Timing and Drift" task via API.