Create or extract video captions

Add captions to videos instantly

Generate video captions with leading transcription technoligy. Create ready-to-use closed captions and export in any formats

100% Free

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No signup needed

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Finished in seconds

Supported input formats

MP4MOVWEBMAVIMKVFLVWMVM4VYouTube URLVimeo URL

Export video captions formats

SRTVTTTXTJSONASSSBV

Platform Support

Works with any video source

Generate captions from local files or paste a URL from your favorite platform.

YouTube

Paste YouTube links directly

Vimeo

Support for Vimeo videos

Social Media

TikTok, Instagram, X videos

Local Files

Upload MP4, MOV, WEBM

How It Works

How to add captions to videos with SkyScribe?

Three simple steps to generate clean, ready-to-use video captions for any video file or url

Upload Video or Paste URL

Drop your video file or paste a link from YouTube, TikTok, Vimeo, Instagram, or cloud storage.

Automatic Captions Generation

Get perfectly timed captions with speaker labels and punctuation

Download & Share

Export captions as SRT or VTT files and easily share with your team or editor

Technical Specs

Delivers production-grade video captioning

Fast, accurate video captions and closed captions with 98+ languages and auto-synced timestamps.

AI Model

OpenAI Whisper

Processing Speed

~12 sec per minute of video

Accuracy

95-99% (varies by video quality)

Free Limit

100MB / 45 min per video

Pro Limit

Unlimited transcription

Languages

98+ supported

Key Features

Why is SkyScribe the best video caption generator?

Everything you need for professional video captions in one place

No Account Needed

Generate captions immediately without email or password

URL Support

Paste links from YouTube, TikTok, Vimeo, and other platforms

Auto Polish & Custom Edit

Automatically fixes grammar, punctuation, structure, and more based on your prompt

Automatic Speech Recognition

Automatically identify and label different speakers in your video

Multiple Formats

Export as TXT, SRT, VTT, Docs, PDF, or other file format

Summarize & Analyze

Extract info for quick summary or in-depth analysis with simple steps

Use Cases

Video captions for every professional

From creators to enterprises, see how teams use video captions to save time and boost reach

Creators & YouTubers - SkyScribe use case

Sample Output

Video captions sample output

See what your captions look like with timestamps and speaker labels

SRT FormatAuto-syncedEditable text

00:00:00,000 --> 00:00:03,500

Welcome to this YouTube tutorial on

creating engaging video content.

00:00:03,500 --> 00:00:07,200

Today we'll cover the best practices

for captions and subtitles.

00:00:07,200 --> 00:00:11,800

Adding subtitles improves accessibility

and boosts your video's SEO ranking.

FAQ

Video Captions & Subtitles FAQs

How accurate is the AI caption generator for video subtitles?

SkyScribe delivers 95-99% caption accuracy for clear audio using Whisper large-v3. Accuracy depends on audio quality, background noise, and speaker clarity.

What video formats can I caption?

We support MP4, MOV, WEBM, AVI, MKV, FLV, WMV, M4V, 3GP, and MPEG. You can also paste URLs from YouTube, TikTok, Vimeo, Instagram, and cloud storage.

Can I export captions as SRT or VTT?

Yes. You can export captions as SRT, VTT, SBV, TXT, JSON, and more. Files are auto-synced to your video.

Is the video caption generator free?

Yes, you can generate captions for free — up to 3 videos per day, 45 minutes each, 100MB max file size. Pro users get unlimited captioning and larger files.

Does it support multiple speakers?

Yes, speaker diarization labels different speakers (Speaker 1, Speaker 2, etc.) and works well for interviews, meetings, and panels.

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