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Subtitle Editor

Edit subtitles with the video in view, transcribe with AI in 100+ languages, translate, and burn beautiful captions into your video — all in the browser.

100% private: files are processed in your browser and never uploaded.

How it works

  1. Step 1

    Drop your subtitle file into the box above — SRT, VTT, and SBV all open in the free editor.

  2. Step 2

    Edit text and timing on the timeline; load your video from your device for an instant preview.

  3. Step 3

    Download the cleaned-up subtitles as SRT, VTT, or SBV — no signup needed.

Want to do more with your subtitles?

Need to edit subtitles against the video, transcribe, translate, or burn captions into the video itself? Captioner is a full subtitle editor with AI transcription in 100+ languages, translation, and styled caption rendering.

Open in the Captioner editor

Frequently asked questions

What is the best way to edit subtitles online?
For quick fixes to an existing .srt file, the free SRT editor on this site works right in your browser. For serious work — editing against the video, transcribing, translating, or burning captions in — use the full Captioner editor, which is free to start.
Can Captioner generate subtitles automatically?
Yes. Captioner transcribes video and audio with AI in more than 100 languages and dialects, including Cantonese, then lets you fine-tune every cue in the editor.
Do I need to install anything?
No. Both the free utilities and the full editor run in your web browser on desktop and mobile.
Can I burn the subtitles into the video?
Yes. The full editor renders styled captions directly into your video — ideal for TikTok, Reels, YouTube Shorts, and RedNote.
Is there a free version?
Yes. The utility tools on this page are entirely free, and the Captioner editor has a free tier — no credit card required to start.

Just need a quick fix? Free subtitle utilities

No signup needed — these run entirely in your browser: