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7 min read•Beginner

How to Use the Subtitle Editor Online – Edit SRT, VTT, ASS

Our free online subtitle editor lets you edit SRT, VTT, ASS, and other formats in the browser. Fix typos, adjust timing, add or remove lines—no software to install and no account required.

Table of Contents

What you can do in the editor

  • Edit the text of any subtitle line (fix typos, improve wording)
  • Change start and end times (format HH:MM:SS,mmm)
  • Add new lines or delete existing ones
  • Keep your original format (SRT, VTT, ASS, etc.) when you download

All editing happens in your browser. Your file is not stored on our servers.

Step-by-step: using the subtitle editor

1

Open the Subtitle Editor

Go to our Subtitle Editor page. No signup or login required.

2

Upload your subtitle file

Drag and drop your .srt, .vtt, .ass, or other supported file, or click to browse. The editor will load all lines with their timestamps and text.

3

Edit text and timing

Each line shows sequence number, start time, end time, and text. Click the time or text fields to edit. Use the format 00:00:01,500 for times (hours:minutes:seconds,milliseconds).

4

Download your edited file

When you’re done, download the file. It keeps the same format you uploaded (SRT, VTT, etc.).

Tips

  • End time should be after start time; keep a small gap (e.g. 0.2–0.5 s) between consecutive subtitles for readability.
  • For big timing shifts on the whole file, use our Subtitle Sync tool first, then fine-tune individual lines in the editor.
  • Save a copy of your original file before making large edits.

Ready to edit?

Use our free Subtitle Editor. No signup, no watermarks.

Open Subtitle Editor