AI-Powered Caption Tool

Auto-Generate YouTube Captions in Seconds

95%+ accuracy captions with Deepgram Nova-3. 15 style presets, word-level sync, render optimized for social media.

Drag & drop your video

or click to select · MP4, MOV, WebM · max 500 MB

Start free, no credit card required.

95%+

Accuracy Rate

Style Presets

40+

Languages Supported

5min

Average Render

How It Works

Add Automatic Captions to YouTube Videos in 3 Steps

Upload Video

Drag and drop your MP4, MOV, or WebM file. Max 500 MB.

Choose Style

Pick the best preset for your brand from 15 options with a single click.

Download & Share

Your captioned video is rendered as MP4 — download and upload directly to social media.

Capabilities

Everything Your YouTube Channel Needs

Word-Level Sync

Every word precisely timestamped with Deepgram Nova-3

15 Style Presets

Classic, neon, pill, cinema, minimalist and more

Multi-Language

Automatic detection and transcription in 40+ languages

Ready-to-Use Video

MP4 file with captions burned in — upload directly

libass Render

Professional-grade SSA/ASS subtitle engine

Fast Processing

Cloud-based GPUs for faster-than-realtime rendering

FAQ

YouTube Caption Maker FAQ

Thanks to the Deepgram Nova-3 Multilingual model, it supports Turkish, English, German, Spanish, French, Italian, Portuguese, Japanese, Korean and more — over 40 languages in total. Video language is detected automatically.

There are 15 ready-made style presets: classic, bold outline, yellow highlight, red/black/blue/purple/green pill, neon yellow/cyan, pink, minimalist, cinematic. Each is optimized for different social media formats.

Currently supports files up to 500 MB. This is roughly equivalent to 10-15 minutes of 1080p video. Support for longer content is coming soon.

You receive an MP4 file rendered with libass and captions burned in. You can upload it directly to YouTube, Instagram, TikTok, or LinkedIn.

Deepgram Nova-3 provides start and end timestamps for each word with tenth-of-a-second precision. This enables karaoke-style word-by-word highlighted captions.

Yes, you can process a limited number of videos per month on the free plan. Upgrade to the Pro plan for higher limits.

Get your first captioned video ready in 5 minutes

Start free, no credit card required.

Try Caption Maker

AI-Powered Caption Tool

Auto-Generate YouTube Captions in Seconds

95%+ accuracy captions with Deepgram Nova-3. 15 style presets, word-level sync, render optimized for social media.

Drag & drop your video

or click to select · MP4, MOV, WebM · max 500 MB

Start free, no credit card required.

95%+

Accuracy Rate

Style Presets

40+

Languages Supported

5min

Average Render

How It Works

Add Automatic Captions to YouTube Videos in 3 Steps

Upload Video

Drag and drop your MP4, MOV, or WebM file. Max 500 MB.

Choose Style

Pick the best preset for your brand from 15 options with a single click.

Download & Share

Your captioned video is rendered as MP4 — download and upload directly to social media.

Capabilities

Everything Your YouTube Channel Needs

Word-Level Sync

Every word precisely timestamped with Deepgram Nova-3

15 Style Presets

Classic, neon, pill, cinema, minimalist and more

Multi-Language

Automatic detection and transcription in 40+ languages

Ready-to-Use Video

MP4 file with captions burned in — upload directly

libass Render

Professional-grade SSA/ASS subtitle engine

Fast Processing

Cloud-based GPUs for faster-than-realtime rendering

FAQ

YouTube Caption Maker FAQ

Currently supports files up to 500 MB. This is roughly equivalent to 10-15 minutes of 1080p video. Support for longer content is coming soon.

You receive an MP4 file rendered with libass and captions burned in. You can upload it directly to YouTube, Instagram, TikTok, or LinkedIn.

Deepgram Nova-3 provides start and end timestamps for each word with tenth-of-a-second precision. This enables karaoke-style word-by-word highlighted captions.

Yes, you can process a limited number of videos per month on the free plan. Upgrade to the Pro plan for higher limits.

Get your first captioned video ready in 5 minutes

Start free, no credit card required.

Try Caption Maker