SRT Editor Online

Use this subtitle editor online to import an SRT or WebVTT file, edit cue text and timestamps, resync the whole track with an offset, validate timing order, and export SRT or VTT locally in your browser.

Edit subtitles locally

Choose an SRT or VTT file, or drop it here

Caption text stays in this browser session.

How to edit subtitles online

  1. 1 Upload an SRT or WebVTT file, drop it on the editor, or paste subtitle text.
  2. 2 Click Load cues to parse the subtitle track into editable caption rows.
  3. 3 Edit cue text, start times, end times, or apply a positive or negative timing shift.
  4. 4 Validate the track, choose SRT or VTT, then copy or download the edited subtitle file.

Related caption and video tools

SRT to VTT Converter Convert SRT captions to WebVTT. VTT to SRT Converter Convert WebVTT captions to SRT. Auto Subtitle Generator Generate subtitles from video or audio, then edit the captions. Audio Waveform Generator Create PNG or SVG sound wave images for captioned audio and videos. Video Trimmer Cut video clips for caption sync checks.

Frequently Asked Questions

Can I use this as an SRT editor online?

Yes. The page edits SRT subtitle files online in your browser, including cue text, start and end timestamps, timing shifts, validation, copy, and download.

Can I edit WebVTT subtitles too?

Yes. The same subtitle editor online can import WebVTT files, edit cues, and export either WebVTT or SRT when you need to switch formats.

Is my subtitle file uploaded?

No. The editor reads SRT and VTT files with browser JavaScript and keeps cue text on your device. Only safe analytics buckets such as format and cue-count range may be sent.

Can I shift all subtitle timings?

Yes. Enter a positive or negative millisecond offset to move every cue earlier or later, then validate before exporting.

Can I export both SRT and VTT?

Yes. Imported SRT or WebVTT cues can be downloaded or copied as either SRT with comma milliseconds or WebVTT with dot milliseconds.

Does this subtitle editor generate subtitles automatically?

No. This page edits existing subtitle files. Use the auto subtitle generator when you need to transcribe video or audio into new captions first.

Subtitle Editor

Edit SRT and WebVTT cues, shift timings, validate order, and export revised subtitles.

Input
SRT or WebVTT text/file plus cue text and timing edits.
Output
Validated SRT or WebVTT subtitle text for download.
Real limitations
The editor does not transcribe audio, translate speech, burn captions into video, or guarantee player-specific styling support.
Privacy and data handling
SRT or WebVTT text/file plus cue text and timing edits is processed in this browser tab. Convertr does not receive or store it; closing or reloading the page clears the working state unless the tool explicitly offers a local download.

How to use this tool

  1. Provide SRT or WebVTT text/file plus cue text and timing edits in the tool controls.
  2. Choose the settings that affect validated SRT or WebVTT subtitle text for download, then run the tool.
  3. Review validated SRT or WebVTT subtitle text for download before copying or downloading it.

Common failure modes

Malformed timestamps, overlapping or reversed cues, invalid sequence order, or unsupported WebVTT blocks appear as validation issues.

Useful example

Load an SRT, shift every cue forward 1.5 seconds, correct one caption, and export the revised file.