Free Auto Caption Generator - AI Subtitle Generator Online (No Sign Up) | Magic Hour
Free Auto Caption Generator
Free auto subtitle generator. Add captions to any video in one click. Customize and style in seconds.
How Auto Caption Generator Works
1. Upload Your Video
Upload a video file with the dialogue you want to caption. Supports 50+ languages.
2. Generate Subtitles
Subtitles will be generated automatically in the target language.
3. Download Video
Download your captioned video in seconds and export it to social media or a video editor.
Auto Caption Generator Use Cases
TikTok and Reels captions
Use an auto caption generator to add burned-in captions for TikTok, Reels, and Shorts. For lip-synced video, try our lip sync tool. Improve retention and make videos easier to watch without sound.
YouTube subtitles
Use auto subtitles to generate subtitle tracks for YouTube uploads. Export SRT/VTT and improve accessibility and search visibility.
Podcast clips
Use subtitles to turn podcast moments into shareable video clips. Create the video with our audio to video or AI talking photo tools. Add readable captions and post them across social platforms.
Course and tutorial videos
Use automatic captions to make tutorials easier to follow. Reduce confusion when viewers are learning step-by-step.
Multi-speaker interviews
Use auto subtitles to caption interviews and panels quickly. Save hours compared to manual transcription and timing.
Internal team videos
Use subtitles for Looms and internal updates so teammates can skim faster. Helpful for async teams across time zones.
Localization-ready transcripts
Use auto subtitles to create a transcript you can translate. Turn one video into localized caption versions for new markets.
Why Creators Love Auto Caption Generator
Add subtitles and captions to any video in one click, then customize the style in seconds. Turn hours of manual transcribing + timing into minutes—great for shorts, tutorials, and global audiences.
Stop manual captioning
Auto-generate subtitles instead of typing line by line—often 5–10x faster than manual transcription and timing.
Boost watch time and engagement
Make videos easy to follow on mute and keep viewers watching longer—especially on mobile.
Consistent subtitle styling
Use templates to keep your look consistent across dozens of posts.
Reach global audiences faster
Generate subtitles in 50+ languages to localize content in minutes.
Make videos searchable
Subtitles help platforms and search engines understand your content—so you can earn more long-tail discovery over time.
Testimonials
Hear what our users have to say
"Magic Hour is the fastest way I've found to go from an idea to a polished image or video. It's simple, the results are consistent, and it's easy to iterate. It feels like a real creator tool."
"Magic Hour is a powerful AI tool for creating video, photo, and even voice content all in one place. Being able to generate videos up to 60 seconds from a single prompt is something most similar platforms still don't offer."
"Magic Hour is one of the few AI tools I genuinely trust. Most tools are hit or miss, but Magic Hour feels reliable. I know what I'm going to get, which makes it easy to use regularly for social content."
"Most AI tools look impressive at first, but they're hard to rely on once you use them regularly. Magic Hour has been different for me. It's easy to use, the results are consistent, and I can get something polished without spending time fixing or redoing things. It fits naturally into how I create, which is why I keep coming back to it."
Boost Engagement
Subtitles and captions increase watch time, improve click-through rates, and increase engagement. Our free auto caption generator makes your content more engaging in seconds.
Make Your Videos Searchable
Adding captions and subtitles makes your videos searchable on search engines and social media, leading to more views, clicks, and followers.
Expand Your Reach
Our auto subtitle generator creates captions in 50+ languages so your content connects with viewers around the world.
Pricing
Whether your content creation needs are large or small, we're here to help you scale.
Creator
For social content and everyday creation
$19 $12/ month
$144 billed yearly
- Credits per year: 144,000
- Included: 1.7 hours of video, 28,800 images, High resolution (1024px)
- Access to all tools, Watermark-free exports, Commercial use, 3 generations at once, Priority queue, Priority support, Upload larger files (2GB), API Access (Full)
Pro
For professional work and frequent production
$39 $25/ month
$300 billed yearly
- Credits per year: 300,000
- Included: 3.5 hours of video, 60,000 images, High resolution (1472px)
- Access to all tools, Watermark-free exports, Commercial use, 5 generations at once, Priority queue, Priority support, Upload larger files (5GB), API Access (Full)
Business
For teams, agencies, and high-volume content
$99 $66/ month
$792 billed yearly
- Credits per year: 840,000
- Included: 9.7 hours of video, 168,000 images, High resolution (4K)
- Access to all tools, Watermark-free exports, Commercial use, Unlimited generations at once, Priority queue, Priority support, Upload larger files (10GB), API Access (Full)
Auto Subtitle API
Generate accurate subtitles for any video automatically.
From $0.005 / sec
from magic_hour import Client
from os import getenv
client = Client(token=getenv("API_TOKEN"))
res = client.v1.auto_subtitle_generator.generate(
assets={"video_file_path": "/path/to/1234.mp4"},
end_seconds=15.0,
start_seconds=0.0,
style={},
name="Auto Subtitle video",
wait_for_completion=True,
download_outputs=True,
download_directory="."
)
Auto Caption Generator FAQ
Is auto subtitle generator free?
Yes, auto subtitle generator is free with no sign up required. You get 3 free videos per day — no account needed. Sign up for free to unlock account-specific credits and rewards, saved projects, and access to more tools. Upgrade for more credits, priority processing, and advanced features.
What is an auto caption generator?
An auto caption generator (or auto subtitle generator) is a tool that creates text captions for videos. Subtitles are a video's dialogue in text form, and allow viewers to follow the video with no audio.
Can subtitles be generated in more than one language at a time?
Yes, our subtitle generator works with over 50 languages, and detects the languages automatically, even within the same video.
How can I change the style of my subtitles?
You can change the subtitle styles by selecting one of our templates. Access more customization by signing up and using our full auto subtitle generator product.