Add Captions to Videos
in Seconds with AI

Perfect for YouTube Shorts, Instagram Reels, and TikTok creators looking to reach a wider audience

4.8/5(used by 100,000+ creators)

TL;DR

Auto Caption is a free-to-download iPhone and iPad app by Take Agency that automatically adds animated subtitles to short videos. It transcribes speech in 99 languages, offers 100+ caption styles, adds no watermark, and exports at max quality and at the right size for TikTok, Instagram Reels and YouTube Shorts. For privacy, the Classic model runs entirely on your device. Videos can be up to 5 minutes long.

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Features that set us apart

99 Languages

Transcribe speech in 99 languages and translate captions into English, so your videos reach a global audience.

Accurate Transcription

AI speech recognition times every word, with strong accuracy across accents and Hinglish. For privacy, the Classic model runs entirely on your device.

Complete Customization

Customize colors, edit transcriptions, and highlight important words to draw attention to key points in your video.

100+ Unique Styles

Choose from 100+ caption styles, each with its own font and animation, or build your own.

Automatic Cropping

Auto Caption crops your video to the right size for TikTok, Instagram Reels, YouTube Shorts and 16:9, 1:1 or 4:5 feeds.

No Ads or Watermarks

Enjoy a clean, professional look on your videos with no annoying ads or watermarks. Your content stays 100% yours.

How To Use Auto Caption

Import your video

Select a video from your camera roll to add captions

Generate captions

Auto Caption will automatically transcribe the speech in your video

Edit and customize

Edit the transcription if needed and choose from 100+ caption styles

Export your video

Save your captioned video to your camera roll and share on social media

Frequently Asked Questions

Why choose Auto Caption over other caption apps?

Captions are our bread and butter. We put more focus on caption styles than anyone else on the market, with 100+ animated styles to choose from. Auto Caption is also extremely easy to use (import a video, pick a style, export) and transcribes accurately across accents and for Hinglish.

How is Auto Caption different from CapCut?

CapCut is a bloated, all-in-one editor that is slow to learn, and its caption styles are very limited. It may also not preserve your original video quality. Auto Caption does one thing, captions, and does it best: 100+ caption styles, you're up and running in minutes, and a max-quality export option keeps your video as sharp as it went in.

Why not just use the built-in captions in TikTok or Instagram?

Built-in captions come in a handful of looks, and they look tacky. Auto Caption is purpose-built for captions: 100+ animated styles, word highlights and full control over fonts, colors and timing, so your videos stand out instead of looking like everyone else's.

How is Auto Caption different from Captions (captions.ai)?

Captions is packed with extra tools. Auto Caption is laser-focused on the best captions: no added cruft, and very easy to use. Extras like studio sound and background music are still there when you want them, tucked into a sub-menu.

Will Auto Caption reduce my video quality?

No. Auto Caption has a max-quality export option, added specifically so captioning never degrades your footage.

Is Auto Caption free?

Auto Caption is free to download on iPhone and iPad. Optional in-app purchases unlock unlimited saves and unlimited auto captions.

Can my audio stay on my device for privacy?

Yes. Choose the Classic model, which runs entirely on your iPhone or iPad, so your audio never leaves your device.

How does Auto Caption generate subtitles?

Auto Caption uses AI speech recognition to transcribe your video's audio and time each word, then animates the words in the caption style you pick. You can edit every word before you export.

Which devices does Auto Caption work on?

Auto Caption works on iPhone and iPad with iOS 15.0 or later. There is no Android or web version.

Which languages does Auto Caption support?

Auto Caption transcribes speech in 99 languages and can translate captions into English. Multilingual captions widen your reach: in a 2020 CSA Research survey of 8,709 consumers in 29 countries, 76% said they prefer to buy products with information in their own language.

Can I edit the generated captions?

Yes. You can edit every word of the transcript: correct words, add punctuation, adjust timing or rewrite whole sections.

How do I customize the caption style?

Choose from 100+ preset styles (fonts, colors, animation presets and word highlights) or build your own. You can also nudge individual timestamps for perfect pacing.

What social platforms work with Auto Caption?

Export presets are built in for YouTube Shorts, Instagram Reels, TikTok, and standard 16:9, 1:1 and 4:5 feeds. Captions pay off on every platform:

80% of viewers are more likely to watch an entire video when captions are available (Verizon Media and Publicis Media survey, 2019).
In a Facebook test, adding captions to video ads increased average video view time by 12% (Facebook, 2016).

Will my video have watermarks?

No. Auto Caption never adds a watermark to your videos, so the export looks clean and stays 100% yours.

Is there a limit to video length?

Yes. Auto Caption works with videos up to 5 minutes long, which covers TikTok, Instagram Reels and YouTube Shorts.

Join Our Community of 100,000+ Creators

Perfect for YouTube Shorts, Instagram Reels, and TikTok creators wanting to reach a wider audience

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Start Creating Professional Captions Today

Edit videos up to 5 minutes long and reach a wider audience with your content