What is an automatic video subtitle generator?

An automatic video subtitle generator transcribes spoken audio and aligns each text segment with the video timeline. Caption Engine previews that timed track and provides WebVTT and SRT downloads.

Does Caption Engine burn subtitles into the video?

No. Caption Engine creates a separate timed caption track. You can preview it with the uploaded video and download VTT or SRT files for compatible editors and publishing platforms.

How much does timed transcription cost?

One successful timed-subtitle operation uses one prepaid Caption Engine credit. A failed operation returns the reserved credit automatically.

AUTOMATIC VIDEO SUBTITLES

Turn spoken video audio into timed on-screen captions

Caption Engine automatically transcribes speech from a video and aligns the text with the timeline. Review the subtitles in the video preview, copy the complete transcript, or download a WebVTT or SRT caption file.

How automatic video captions work

Upload an MP4, MOV, or WebM video with a clear audio track. Caption Engine extracts a temporary audio copy, identifies speech, and returns timestamped text segments. Those segments become a subtitle track that appears in the browser’s video player.

Download VTT or SRT subtitles

WebVTT is designed for captions in modern web video players. SubRip, commonly called SRT, is widely supported by video editors and publishing tools. Both files contain the same transcript timing, so you can choose the format your workflow accepts.

Designed for short-form video

The timed-subtitle tool supports videos up to three minutes and costs one credit for a successful operation. If transcription fails or no usable speech is found, the reserved credit is returned automatically.

Review before publishing

Automatic speech recognition can mishear names, specialist terms, accents, overlapping speakers, music, or noisy recordings. Play the preview and check every caption before publishing. The downloadable file remains separate from the video, so you can edit it in a compatible tool.

Subtitles and TikTok posting copy

Timed subtitles represent what speakers say inside the video. Posting captions and hashtags describe the video alongside a social post. Caption Engine provides these as separate one-credit tools: timed transcription, or exactly three TikTok-ready posting captions plus ten relevant, viral-friendly hashtags based on real frames.

Does Caption Engine permanently add text to my video?

No. It creates a separate caption track and downloadable subtitle files; it does not burn text into the uploaded pixels.

Which video and subtitle formats are supported?

You can upload MP4, MOV, or WebM video and download the result as WebVTT or SRT.

What happens to the uploaded video and audio?

The uploaded video and temporary extracted audio are removed after the request finishes. See the privacy policy for details.

Create timed subtitles

Upload a short video, select “Create timed subtitles,” and review the caption track before downloading it.

Open Caption Engine