Free tool: Captions and audio

Subtitle shifter

Subtitles out of sync? Move every cue earlier or later by a fixed offset, or stretch timings to fix drift between 23.976, 24, 25 and 30 fps versions.

Runs entirely in your browser. Nothing is uploaded. No signup needed.

2 cues. Positive offset delays subtitles; negative shows them earlier.

Result (SRT)

Tired of fixing caption timing? Menivor times captions to each spoken word automatically. Make it a finished video free

How to use it

  1. 1Paste or upload your .srt or .vtt file.
  2. 2Enter the offset in seconds (for example 2.5 or -1.2), and optionally a frame-rate correction.
  3. 3Download the shifted file in the same format, or switch the output to the other format.

About this subtitle shifter

Subtitles usually go out of sync for one of two reasons. Either they are consistently early or late, often because an intro was trimmed or added, which a fixed offset fixes. Or they start in sync and drift further apart over time, which means the subtitle was timed for a different frame rate and needs to be stretched.

Enter a positive offset to delay subtitles or a negative one to show them earlier. For drift, pick the frame rate the subtitles were made for and the frame rate of your video; the tool scales every timestamp by the ratio. Cues pushed before 00:00:00 are removed.

Tip: find one line near the start and one near the end, note how far off each is, and you will know immediately whether you need an offset (same gap) or a frame-rate fix (growing gap).

Frequently asked questions

How do I make subtitles appear earlier?
Use a negative offset. For example, -2 shows every line two seconds earlier. Lines that would start before zero are clamped or removed.
Why do my subtitles drift out of sync over time?
The subtitle was timed for a different frame rate, typically 23.976 vs 25 fps. Use the frame-rate correction to stretch the timings by the right ratio.
Can I shift subtitles in VLC instead?
VLC can delay subtitles during playback with the G and H keys, but it does not save the change. This tool writes a corrected file you can reuse anywhere.
Does it support VTT files?
Yes, both SRT and WebVTT are supported for input and output.

More free tools

SRT to VTT converterPaste or upload an SRT or VTT file and convert it to the other format instantlySubtitle generatorDrop in a video or audio clipBitrate calculatorTwo calculators in one: file size from bitrate and length, or the video bitrate that fits a size limit, with audio and container overhead accounted for.

Guides and video makers

Karaoke caption generatorAdd captions to video

See all free video tools.

Skip the busywork: get finished videos

Paste a link or type a topic. Menivor writes the hook and script, records the voiceover, adds footage and word-by-word captions, and renders ready-to-post vertical videos in 1080 x 1920.

See pricing