GPT IMAGE 2.5 | WAN 3.0 | SEEDANCE 2.5 IS NOW LIVE!

GENERATE YOUR VIDEOS WITH UNLIMITED SEEDANCE 2.5 TODAY.

NO EXTRA SUBSCRIPTION

AI Caption Generator for Video

AI Caption Generator for Video: Upload a video; Reviral word-aligns its speech and burns one of 22 animated caption styles into the export. Captioning costs 244 credits (~$1.93) at the creator's 15-second default duration setting. The charge follows the duration you set there, not your upload's length.

Add animated, word-aligned video captions to an uploaded clip.

  • Word-level alignment
  • 22 caption style presets
  • Choose top, middle, or bottom position
  • Burned-in video captions, not a separate caption file

No credit card required to try — sign in with email or Google.

Direct answer

Reviral's AI caption generator adds word-aligned video captions to an uploaded clip. It transcribes the speech, lets you choose from 22 animated caption styles and top, middle, or bottom placement, then burns the selected treatment into the exported video. It is for visible video captions, not social-post caption writing or a separate transcript file.

Ways to use this tool

TikTok video captions

Burn readable, word-timed text into a short-form upload so the visual treatment travels with the exported file.

Instagram Reel captions

Style a Reel draft with animated captions and choose a placement that avoids covering the main subject.

YouTube Shorts captions

Prepare a vertical clip with visible speech text without relying on a platform caption layer.

Podcast clip captions

Caption an already-trimmed podcast video while preserving its original audio; automatic speaker labels are not added.

Talking-head accessibility pass

Create a video with burned-in speech text, then review names, numbers, and specialist terms before distribution.

How it works

  1. Step 1

    Upload the finished clip

    Choose the video whose existing speech and audio you want to keep.

  2. Step 2

    Pick the caption treatment

    Select one of 22 animated presets and position the captions at the top, middle, or bottom.

  3. Step 3

    Transcribe and render

    Reviral aligns caption words to the detected speech and burns them into a new video export.

Limits to know before you start

  • No accuracy percentage is promised; accents, crosstalk, noise, names, and specialist vocabulary can produce transcription errors.
  • The route does not create a social-media post caption, detect speakers, or produce a separate SRT or VTT download.
  • Captions are burned into the video and cannot be toggled off as a platform subtitle track.
  • The caption charge follows the duration chosen in the creator rather than measuring the uploaded clip's length.

What it costs

Captioning costs 244 credits (~$1.93) at the creator's 15-second default duration setting. The charge follows the duration you set there, not your upload's length.

Prices checked 14 September 2026. Cached for up to 1 hour.

Frequently asked questions

Is this an AI video caption generator or a post-caption writer?
It captions speech inside a video. It does not write Instagram, TikTok, or LinkedIn post copy.
How many caption styles are available?
The upload workflow includes 22 animated style presets, with top, middle, and bottom placement choices.
Are the captions word synced?
Yes. Reviral transcribes speech and aligns the displayed captions to individual words in the audio.
How accurate is the transcription?
No fixed accuracy rate is claimed. Review the rendered text carefully, especially names, numbers, accents, overlapping speech, and technical terms.
Can I download SRT or VTT captions?
No. This route creates a video with burned-in captions and does not offer a separate subtitle-file export.
Does the upload keep its original sound?
Yes. The workflow retains the uploaded video's audio while adding the animated caption layer.
Can I start with signup credits?
Yes. New accounts receive the signup credits displayed on the site, and the linked creator shows the applicable charge before rendering.

More in Short-Form Video

Compare closely related tools, or browse the complete Short-Form Video topic hub.