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ONLINE SUBTITLE EDITOR

Online subtitle editor for clean captioned videos.

Upload a video, SRT or VTT. Generate or import captions, fix words and timing directly on the video preview, then export subtitle files, captioned MP4s, clips, green-screen captions or translated versions.

Start Free View Editor Demo

No install. No timeline wrestling. Import subtitles, fix them visually, export SRT, VTT & MP4.

UPLOAD VIDEO OR SUBTITLES

Start with a video, screen recording, SRT, VTT or generated captions.

EDIT VISUALLY

Correct words, split lines, adjust timing and style subtitles while watching the result.

EXPORT THE FORMAT YOU NEED

Download SRT, VTT, captioned MP4s, clips or green-screen captions.

LAUNCH CAPTN

One subtitle edit. Every output.

Stop rebuilding captions for every format. Clean them once, then reuse them for translations, social clips, course videos, client review files and platform-ready exports.

Generate subtitlesCreate editable captions from video, then export SRT/VTT or captioned MP4.
Translate captionsCreate translated subtitle versions from the same project.
Create clipsFind promising moments or make clips manually from the captioned timeline.
Reframe for socialPrepare vertical, square, landscape or original-ratio clips.
Captn product collage showing subtitle blocks, video preview, timing controls, caption presets, caption effects, and export workflow.

BUILT FOR REAL SUBTITLE EDITING

Auto captions are a draft. Make them publishable.

Generated captions get you close, not done. Captn keeps the transcript, timing, style controls and video preview together, so you can fix subtitles without digging through a heavy editing timeline.

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 captionsTurn cleaned caption sections into short social videos.

FINISH AND PUBLISH

Clean captions once. Publish them anywhere.

Fix the generated captions, then export SRT, VTT, captioned MP4s, clips or translated subtitles.

Before Generated draft
Captn editor showing generated subtitle blocks that can be cleaned before export.
Review words, line breaks, timing, and style in one editor.
After Captioned export
Export readable captions as MP4, SRT, or VTT.
Edit text Sync timing Style captions Export clean files

Export

SRT VTT Captioned MP4 Clips Burned-in captions Green-screen captions Translated subtitles

Use for

Instagram YouTube TikTok Reels Shorts Courses Client review

PLANS AND PRICING

Start free. Upgrade for longer videos and more exports.

Try the editor on real projects. Upgrade when you need longer videos, more exports, translations, clips or higher publishing volume.

Free

Test the subtitle workflow

Good for checking transcription, visual cleanup, and export quality on shorter projects.

$0 to start
  • 100 MB upload limit
  • 10 min source video limit
  • 30 transcription/export minutes monthly
  • 3-day project retention
Start Free
Pro

Paid

Publish captioned videos more often

Use more processing time for longer videos, polished exports, reusable projects, and clips.

$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 and projects stay available longer
Upgrade to Pro

FAQ

The short version.

A few practical answers before you start a project.

What is Captn?

Captn is an online subtitle editor for generating, editing, translating, exporting, and burning captions into videos. Upload a video, generate captions or import SRT/VTT, edit them on the preview, then export subtitle files or captioned videos.

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.

Do I need video editing experience?

No. Captn is built around the video preview and subtitle editor, so you can fix captions without learning a complex editing timeline.

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.

Stylized Captn editor preview with subtitle timeline and export-ready video.

Start a project

Start with a video. Leave with captions ready to publish.

Start Free View Editor Demo