Add subtitles to a video, in the browser.

Drop a file, press Generate, fix any line, export. Free to start, no install, no upload before you can begin.

Start creating for free

How it works

Open the studio

No download: Aulyr runs in your browser. Create a free account and you're in the editor in seconds.

Drop your video

Editing starts immediately while the file saves in the background. Trim the clip first if you only need part of it.

Generate captions

One click. The audio is transcribed with word-level timing and an editable caption track appears on the timeline.

Fix and style

Double-click any word to correct it, then choose one of thirty studio styles and a position.

Export your MP4

The video renders in your browser with subtitles burned in, ready for any platform.

"Burned in" means they can't un-render

Aulyr renders your styled captions into the pixels of the exported video: every platform shows them identically, no separate subtitle file to lose, no player settings for viewers to fumble. Until you export, captions stay a fully editable track.

Questions

Is it free to add subtitles?

The free plan includes thirty one-time caption minutes and 720p export with a small watermark, enough to genuinely try it on real videos. From there, Creator is $4.99 a month.

Can I edit individual lines?

Every line and every word. The transcript panel edits text; the timeline edits timing.

Do I have to upload my video first?

No: editing starts from your machine immediately. Signed-in projects sync in the background so nothing blocks you.

Which video formats work?

Anything your browser plays: MP4/H.264 is the safe bet, WebM and friends work too.

Keep exploring

Subtitles

Captions that hear every word: accurate transcription, 30 studio styles rendered live, and word-by-word highlight, editable to the last syllable before you export.

Automatic subtitles

Auto-detect the spoken language, transcribe with word-level timing, and keep captions in sync as you edit. Automation plus an editor for the last 5%.

Caption generator

Word-highlight captions in 30 styles for Reels, TikTok, and Shorts: 9:16, 1:1, 4:5, and 16:9 formats with safe zones for platform UI.

Say it everywhere.

Free one-time trial · No install · Export straight from your browser

Start creating for free See pricing