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AI VIDEO CREATION & EDITING

From first idea to finished video.

Generate a scene or bring your footage. Continue the story, edit your shots, add captions and export—all in one workspace.

Start Free Explore AI Video

Try media overlays, music, motion tracking and audio cleanup with limited Free allowances.

GENERATE OR UPLOAD

Start with an idea, a frame, or your own footage.

EDIT & REPURPOSE

Trim footage, create clips, reframe, and clean up captions.

EXPORT EACH VERSION

Download full videos, social clips, SRT/VTT, and translated subtitles.

GENERATIVE STUDIO · EARLY ACCESS

Create a scene.
Keep it going.

Start with a prompt or frame. Continue the action. Turn your shots into a finished video.

01 First shot 0–4s 02 AI continuation 4–8s

Made in Captn · Kling · Two real shots

  1. Imagine the shot

    Your prompt. Your frame. Your direction.

  2. Continue the story

    Build the next shot from the last frame.

  3. Make it yours

    Try another take. Trim, caption and export.

Open Generative Studio Explore what you can create

Early access · Captn Pro + generation credits. Price shown before you generate.

ONE WORKSPACE

Create. Continue. Finish.

Take your generated shots or uploaded footage through editing, captions and export without switching tools.

Cut and trim videoRemove unwanted sections while keeping the project together.
Create clipsReview suggested moments or choose exact sections yourself.
Reframe for socialPrepare vertical, square, landscape, or original-ratio versions.
Detect speakersSeparate dialogue with speaker-aware captions.
Translate and exportDownload video, clips, SRT/VTT, or translated subtitles.
Captn subtitle editor with start and end time controls, caption text, video preview and audio waveform.

CAPTIONS YOU CAN ACTUALLY EDIT

Auto captions are a draft. Make them publishable.

Review the transcript alongside your video. Correct mistakes, adjust when captions appear, and check their style before exporting.

Correct words and line breaksFix the awkward breaks, typos, casing and punctuation that make auto captions feel unfinished.
Sync subtitle timingAdjust when captions appear and disappear while previewing the video.
Style captions for each platformSet fonts, colors, highlights and layout before exporting.
Prepare clips from captionsChoose a section of your video and export it as a captioned clip.

FINISH EACH VERSION

One project.
Every version.

Fine-tune your captions. Create your clips. Export each version from one workspace.

01 In the editor
Script Emphasis applied in the real Captn editor, with the caption preview and audio waveform.
02 Ready to publish Script Emphasis
  1. Edit words
  2. Sync timing
  3. Style captions
  4. Export your version

TAKE IT FROM HERE

The right format. For your next step.

Ready-to-share videos

Full videos or clips with burned-in captions.

MP4

Subtitle files

Original or translated captions, ready to upload.

SRT · VTT

Caption layers

Green-screen captions for your next edit.

VIDEO
MADE FOR

YouTube, Instagram & TikTok · Reels & Shorts · Courses & client reviews

PLANS AND PRICING

Start free. Upgrade for longer videos and more exports.

Try Captn on real videos. Upgrade when you need longer projects and more exports.

Free

Try Captn on a real video

Edit, caption, clip, and export shorter projects.

$0 to start
  • 100 MB uploads and 10 min source videos
  • 3 video exports each month
  • 30 shared processing minutes monthly
  • 100 MB total uploads monthly
  • 3-day project retention
  • 3 added media items + 1 audio track per project
  • One-time tracking, cutout, speech and Clips trials · See limits
Start Free
Pro

Paid

Create more with Captn

More clips, advanced automation, and longer videos.

$10 per month
  • Up to 3 GB uploads and 3-hour source videos
  • Smart clip making for shorts, reels, and podcast highlights
  • 600 processing minutes for transcripts, exports, and clips
  • Priority rendering · Projects saved for 14 days
  • Generative Studio access + 30 one-time welcome credits
Upgrade to Pro

Processing minutes cover transcription and video rendering. AI generation uses separate credits. Welcome credits are included once after your first confirmed Pro payment; renewals do not add credits. Buy more whenever you need them.

FAQ

The short version.

A few practical answers before you start a project.

What can I try for free?

Free includes manual placement and keyframes, up to 3 added media items and 1 audio track per project, and 1 saved brand or template.

One-time trials: 30 seconds of motion tracking, 2 image cutouts, 60 seconds shared across speech isolation, restoration and echo reduction, and 3 clips from one analysis of a video up to 5 minutes.

Processing, upload, download and project-retention limits also apply. Advanced trials do not renew monthly. Upgrade to Pro for more.

Is AI video generation included in the free plan?

Generative Studio requires Captn Pro. Your first confirmed Pro payment includes 30 one-time welcome credits. Buy more generation credits when needed. The price is shown before each generation; editing processing minutes do not cover AI generation.

What is Captn?

Captn is a browser workspace for creating and finishing video. Generate and continue AI scenes, edit your own footage, make clips, add captions and export.

Can I edit an SRT or VTT file online?

Yes. Upload an SRT or VTT file, review it against the video, fix text and timing, then export an updated subtitle file when you are done.

Can I generate subtitles from a video?

Yes. You can start from a video and generate captions, then clean up the words, line breaks and timing before exporting.

Can I export a captioned MP4?

Yes. Captn can export captioned video, subtitle files such as SRT and VTT, clips, green-screen captions and translated versions.

Can I translate subtitles?

Yes. You can create translated caption versions from the same project and export the translated subtitles or video.

Is Captn only for subtitles?

No. Generative Studio creates video from prompts or frames and continues existing clips. You can also cut, trim, reframe and export your footage.

Can I make social clips too?

Yes. You can use cleaned captions to create short clips and prepare exports for platforms like TikTok, Reels, Shorts and course content.

Start a project

Your next video starts here.

Start Free See the Editor