How to add subtitles to a video

You can add auto-generated, styled subtitles to a video right on your phone — and export with the captions burned in — in five quick steps. Here is the whole flow.

1. Pick a video

   Open Subtightl and pick a video from your phone's gallery or camera roll. Vertical short-form clips work great.

2. Auto-generate the transcript

   Tap to generate. Subtightl automatically transcribes the speech into timed subtitles, so you start from a full draft instead of a blank screen.

3. Edit text and timing, choose a style

   Review the captions, fix any wording, adjust the timing if needed, and pick a subtitle style that matches your video.

4. Export with burned-in subtitles

   Export the video. Subtightl burns the subtitles directly into the video pixels and gets your captioned file out fast — no waiting around.

5. Share

   Save or share the finished video straight to TikTok, Instagram Reels, YouTube Shorts, or anywhere else. The captions are already baked in.

Subtightl works in many languages — including English, Spanish, French, German, Portuguese, Italian, Japanese, Korean, Russian, and Chinese. New to it? You start with some free credits, there are never any ads, and you can read more on the FAQ or compare it with CapCut and Submagic.