Edit and shift SRT subtitles online

Correct subtitle text and timestamps, shift all subtitle times earlier or later, count SRT text, review an estimated reading speed and preview against a local video. Open a UTF-8 SRT to get started; editing runs in your browser.

Edit your SRT text and timestamps

Correct names, wording or cue times, count subtitle text and estimate reading speed before translating—or review a downloaded translation. Editing is free, requires no account and stays in this browser. Only the explicit upload button sends the edited file to translation.

Preview with a local video

Optional: open a video to compare your SRT against its audio. The video stays in this browser and is not uploaded. Browser video and codec support varies.

Preview shows the first matching cue if times overlap. It does not synchronize automatically, transcribe audio, burn subtitles into video, or save the video after you leave.

UTF-8 SRT only, up to 5 MiB and 5,000 cues. Export renumbers cues and normalizes line endings. Formatting tags stay as literal text. No automatic synchronization or language correction; overlaps are not repaired. Changes are not saved after closing or reloading this page. Translation is separate and uses the available sample or displayed credits.

How to review an SRT before translation

  1. Open your SRT or try the sample. The editor accepts UTF-8 SRT, up to 5 MiB and 5,000 cues.
  2. Correct the text, names and start/end times. For a constant delay, shift all cues together. Optionally open your own video and seek to a cue; codec support depends on your browser.
  3. Use the adjustable characters-per-second estimate to find cues to inspect. The number does not certify readability or accessibility.
  4. Download the edited SRT and watch it with the video. To translate it, choose the upload button separately and review the sample and credit estimate.

The editor does not transcribe audio, automatically sync, add or split cues, or edit VTT/ASS directly. It does not save your work after the page closes. Your selected video and SRT stay in the browser during editing; the separate translation action uploads the edited file. Usage analytics follow your privacy settings.

Have a VTT file? Convert a supported VTT to SRT first and review what formatting may be lost. Need another language? Visit the subtitle translator.

Have a script but no SRT? Create a timed SRT draft from text, then review every cue against the audio. Have two timed SRT tracks? Combine them into bilingual subtitles after checking synchronization.