AI Caption Generator - Add Auto Captions to Any Video Free
Generate captions for any video automatically with our free AI caption generator. Upload your video and get perfectly timed, animated captions in seconds.
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Loved and used by real creators, podcasters, brands and more
LockedOn Lakers 
Jeremy Vine & Daytime on 5 
Lighten Up Podcast 
Unscripted by Raygan 
Made by Mizko 
Design Champs 
MotDollarMiljonen 
Southside Presbyterian Church 
Hope Rising Church Southside Presbyterian Church 
Let The Streets Rejoice 
LockedOn Lakers Jeremy Vine & Daytime on 5 Lighten Up Podcast 
Unscripted by Raygan Made by Mizko Design Champs 
MotDollarMiljonen Southside Presbyterian Church Hope Rising Church 
Southside Presbyterian Church Let The Streets Rejoice LockedOn Lakers Jeremy Vine & Daytime on 5 Lighten Up Podcast Unscripted by Raygan Made by Mizko Design Champs MotDollarMiljonen Southside Presbyterian Church Hope Rising Church Southside Presbyterian Church Let The Streets Rejoice LockedOn Lakers Jeremy Vine & Daytime on 5 Lighten Up Podcast Unscripted by Raygan Made by Mizko Design Champs MotDollarMiljonen Southside Presbyterian Church Hope Rising Church Southside Presbyterian Church Let The Streets Rejoice Trusted by teams at
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SonatypeMPS SocietySonatypeMPS SocietySonatypeMPS SocietySonatype How to use this tool
Upload your video
Drop any video file or paste a YouTube link. We support MP4, MOV, WebM, and more.
AI transcribes the audio
Our AI listens to your video and converts speech to text with 97%+ accuracy in 97 languages.
Customize caption style
Choose fonts, colors, animations, and keyword highlights to match your brand.
Download captioned video
Export with captions burned in, perfectly formatted for TikTok, Reels, Shorts, or any platform.
How it works
How to add AI-generated captions to your videos
Upload any video and our AI caption generator automatically transcribes the audio, syncs every word to the timeline, and overlays styled captions directly onto your video. The entire process takes under two minutes for most clips.
Unlike basic auto-caption tools, Choppity's AI understands context, punctuation, and natural speech patterns so your captions read like they were written by a human. You get broadcast-quality results without touching a timeline.
Why captions matter
Why every video needs AI-generated captions
85% of social media videos are watched on mute. Without captions, you lose the majority of your audience before they hear a single word. AI-generated captions keep viewers watching, boost average watch time, and dramatically increase engagement across every platform.
Captions also make your content accessible to deaf and hard-of-hearing viewers, improve comprehension for non-native speakers, and give search engines text to index so your videos rank higher in search results.
Accuracy & quality
How accurate is AI caption generation?
Our AI caption generator delivers 97%+ accuracy on clear audio across 97 supported languages, outperforming most built-in platform auto-captions. The engine handles multiple speakers, background music, fast-paced dialogue, and technical terminology.
Every caption is precisely timed at the word level, so animations like word-by-word highlights and karaoke-style reveals land perfectly. You can review and edit any line before exporting.
Try our AI video editing platform
At Choppity we help content creators turn long videos into viral short clips. We use AI to automatically identify highlights, add animated captions, and optimize content for each social platform.
Try it for freeThese podcasters, creators, content teams and founders said yes, look what happened
Here's what happened when you stop trying tools or dabble with video editors and start using Choppity.
"All these random startups and VC-backed companies going after the "creator economy". Now this is how you do it. For creators, built by creators. Super bullish on products being built for the pain points already felt deeply by the founder. Let's goooooo!"
Alex B.
YouTuber & Founder, EfficientApp
"Exactly the solution I was looking for. Just generated all these clips whilst in bed! Awesome work and congrats on the launch"
Ramish
YouTuber & Designer
"After a few small technical issues the team really went above and beyond to help. They were fast and efficient and really made all the difference. I don’t think I have had this type of customer service … maybe ever lol - Thank you and recommend"
Nicole B.
Content creator
"We've been using Choppity for the last 6 months or so for the AutoTrader tech podcast. We've seen a massive increase in our views and subscribers! Couldn't have done it without Choppity."
Callum B.
Product Lead, AutoTrader
"Since we've started using Choppity, our socials have seen a 4x increase in overall views across our channels. Love the non-stop product updates as well."
Vaibhav
Founder, SmartLead.ai
"Want cleaner podcasts without spending hours editing? We found an AI tool that automatically censor swear words audio bleeps AND caption cleanup! Choppity. Game changer"
AwesomeCast
Tech Podcast
"The Choppity team have been shipping new updates to the product which I am quite happy about. It's getting faster and they are also giving us the features we've been asking for!"
Amy L.
Finance creator
"In the past I've tried to get my YouTube video editor to create mass amount of short form content, but they struggled. Economically it didn't make sense and the quality wasn't great. Choppity has been an INCREDIBLE asset in scaling up my short-form video reach. Having ALL the clips automatically clipped, styled and ready to publish has been the biggest lever to growing my businesses."
Michael W.
YouTuber & Designer
AI Caption Generator FAQs
Common questions about this tool and how it works
Is this AI caption generator free?
Yes, our AI caption generator is completely free to use. Upload any video and get auto-generated captions at no cost. For advanced features like bulk processing and team workspaces, check out Choppity's paid plans.
What video formats does the AI caption generator support?
Our tool supports all major video formats including MP4, MOV, WebM, AVI, and MKV. You can also paste a YouTube URL and we'll pull the video automatically.
How long does it take to generate captions?
Most videos are captioned in under 2 minutes. Longer videos (30+ minutes) may take slightly longer depending on audio complexity.
Can I customize how the AI captions look?
Absolutely. Choose from multiple animation styles (word-by-word, karaoke, fade, bounce), customize fonts, colors, text size, positioning, and highlight keywords with your brand colors.
What languages does the AI caption generator support?
Our AI supports 97 languages including English, Spanish, French, German, Portuguese, Japanese, Korean, Chinese, Arabic, Hindi, and many more with high accuracy.
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