Private by design · runs on your device

Add captions to any video. That's it.

Drop in a clip and Just Captions listens, transcribes, and lays down clean, readable subtitles automatically. No timeline. No editing skills. Up to 20 videos at once.

Add captions free Download on theApp Store

Processed on device Captions in ~1 minute No card to start

Drop a clip and caption it free — right here

mp4 · mov · first 60s

Browser tool: processed locally. Engine downloads once.

Cooking

it's SO easy

Fitness

three sets, let's go

Travel

best street in town

Beauty

one product, done

Podcast

here's the thing

Caption style previews — static and animated options

Localrecognition available

Freeto download & caption

50+languages understood

~30saverage caption time

0frames uploaded to a server

How it works

Three taps from raw clip to captioned post

Pick a video

Drop in a clip or choose up to 20 from your library. Portrait, square or landscape — it all works.

creating subtitles…

We caption it

Just Captions listens, transcribes the speech, and times clean subtitles to every word — automatically.

Export & share

Tweak a word if you want, pick a style, and export burned-in captions ready for TikTok, Reels or Shorts.

Automatic captions

Accurate captions, without lifting a finger

No timeline, no scrubbing, no manual typing. Just Captions transcribes your speech and times every line for you — so a finished clip is a minute away, not an evening.

Word-level timing that actually lands
Punctuation & casing handled automatically
Understands 50+ languages out of the box

AI Auto Translate

Translate into 33+ languages

Turn finished captions into another language with AI, while keeping the same timing and readable caption style.

Translate captions after transcription
Keep the original video timing
Share the same clip with more audiences

Caption presets

15 styles. From simple text to animated words.

Choose static styles for simple captions or Pro animated styles such as Word Highlight, Pop In and Typewriter. Try one Emoji video export free.

White box, Gray box, Neon & animated Word Highlight
Switch styles with one tap, see it live
Tuned for vertical video safe zones

hello there

White boxdefault · max contrast

hello there

Yellow boxbrand · punchy

hello there

Yellow outlineminimal · no fill

hello there

Gray boxbold · cinematic

Edit text · AI correct

Fix a name or a brand in one tap

Got a tricky name, slang, or product term? Tap any line to edit it, and AI Correct cleans up misheard words across the whole clip so you don't have to chase every instance.

Tap-to-edit any caption line
AI fixes repeated mistakes in one go
Build a personal dictionary of your terms

00:02welcome back to the channel

00:05kombutcha kombuchaAI fix

00:08let's get straight into it

00:11first thing you'll need is…

Batch Mode

Batch Mode for up to 20 videos

Shot a week of content in one sitting? Queue up to 20 clips, pick a style once, and let Just Captions work through the whole batch while you do something else.

One style applied across the whole queue
Runs in the background, notifies when done
Export all, or fine-tune one at a time

Batch queue 3 of 5 done

recipe-final.mp4

workout-3.mov

ep-12-clip.mp4

captioning…

On-device · private

Choose on-device or cloud recognition

On-device transcription is available after the model download. Optional cloud recognition sends audio for processing; AI editing and translation send caption text. These online features need a connection.

On-device transcription after model download
On-device transcription works offline after model download
No accounts required to caption a clip

Processed on your device

Offline Private On-device

Made for short-form

Whatever you film, caption it in a minute

Creators

Caption every Reel, TikTok and Short so the 85% watching on mute still get the hook.

Marketers

Turn raw founder clips and UGC into on-brand, subtitled posts without a video editor.

Podcasters

Cut audiograms and episode clips with accurate captions that bring in new listeners.

Educators

Make lessons and explainers accessible with subtitles that are clear and easy to read.

Everything inside

Small app. Surprisingly complete.

Auto-transcribe

Speech to subtitles, timed to the word, automatically.

AI Auto Translate

Translate captions for another audience.

15 caption styles

Readable styles tuned for vertical video.

Tap to edit

Fix any word inline — AI Correct handles the rest.

Batch Mode

Queue up to 20 clips and walk away.

On-device

On-device recognition works offline after model download. Cloud and AI features need internet.

Any aspect ratio

Portrait, square or landscape — safe zones respected.

Burned-in export

One file, captions baked in, ready to post anywhere.

Custom dictionary

Teach it your names, brands and slang once.

FAQ

Good questions, quick answers

Is my video really processed on my device?

Yes. Just Captions transcribes and times captions locally on your phone. Your video stays local when you use on-device recognition, and on-device captioning works offline after the model download.

How many videos can I caption at once?

Up to five at a time. Pick a caption style once and the whole batch runs in the background, then you can fine-tune any clip before exporting.

What languages are supported?

Just Captions understands 50+ languages and captions them in the language that's spoken. Accuracy is best with clear audio.

Can I edit the captions if a word is wrong?

Tap any line to edit it. AI Correct fixes a misheard name or term everywhere it appears, and you can save your own words to a personal dictionary.

What does it cost?

You can caption your first videos free with no card required. A simple Pro upgrade unlocks unlimited captioning and longer clips.

Add captions to your next video. That's it.

Three videos a day free, no card, on-device transcription available. Drop in a clip and watch the captions write themselves.

Download on theApp Store

Just Captions 2.6: three videos a day free, with a watermark. Choose from 15 styles: seven static styles are free; animated styles require Pro, with one free single-video Emoji export. Pro removes the watermark. On-device transcription is available after the model download. Optional cloud recognition sends audio for processing; AI editing and translation send caption text. These online features need a connection.

Compare options for your workflow: Captions app alternative, Submagic alternative, or CapCut alternative for captions.