How to batch add captions to multiple videos

Shot a week of content in one sitting? Queue up to 20 clips, pick a style once, and Just Captions transcribes and burns in subtitles for the whole set — on your iPhone, in the background, with nothing uploaded.

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Up to 20 in a queue Processed on device No card to start

The short version: open Just Captions, add up to 20 videos from your camera roll, and pick one caption preset for the batch. The app transcribes and times subtitles for every clip on your device, then you export each one as a burned-in MP4. One style decision, twenty captioned videos — and your footage never leaves your phone.

Step by step

Caption a whole batch in one pass

Select your clipsOpen Just Captions and add up to 20 videos from your camera roll at once. Portrait, square and landscape can all sit in the same queue.
Pick one styleChoose a single preset — white box, yellow box, white outline or black bar — and it's applied across the batch so every clip comes out looking consistent.
Let Batch Mode runThe app transcribes each clip on your device and times clean subtitles to every word, working through the queue in the background while you do something else.
Review & exportOpen any clip to fix a name or tweak a line, then export each video as an MP4 with the captions burned in — ready to post anywhere.

Captioning for more than one market? After a batch finishes, use AI Auto Translate to spin a finished clip into another language, or see how to translate one video into multiple languages.

Batch Mode at a glance

What Batch Mode handles for you

One queue, one style decision, and the work runs unattended on your device. Here's exactly what's covered.

Capability	In Just Captions Batch Mode
Clips per queue	Up to 20 videos at once
Styling	Pick one preset; applied across the whole batch
Aspect ratios	Portrait, square and landscape can be mixed in one queue
Where it runs	On your device, in the background — nothing uploaded
Per-clip edits	Open any video afterwards to fix a word or adjust placement
Languages	Transcribes whatever's spoken across 50+ languages
Output	One burned-in MP4 per clip, ready to upload

Best for posting daily, repurposing one shoot into a week of clips, or captioning a backlog without sitting through each one.

Batch Mode

One style decision covers the whole set
Runs in the background while you step away
Consistent look across every clip in a series
Still lets you fine-tune any single video

Captioning one at a time

Repeat the same taps for every clip
Easy to drift out of a consistent style
You have to babysit each export
Slow when you've shot a week in one go

FAQ

Batch captioning, answered

How many videos can I caption at once?

Batch Mode handles up to 20 clips in a single queue. Add them all, pick a style once, and Just Captions works through the set on your device while you do something else.

Does every video have to use the same style?

You apply one preset to the batch so the set stays consistent, but you can still open any individual clip afterwards to adjust the style, fix a word or change placement before exporting.

Can I mix portrait, square and landscape in one batch?

Yes. Different aspect ratios can sit in the same queue — captions are sized and placed appropriately for each clip's frame.

Is anything uploaded when I batch caption?

No. Transcription and rendering run entirely on your device, so none of your footage leaves your phone — even with 20 clips in the queue.

Caption your whole batch. That's it.

Free to start, no card, nothing uploaded. Queue your clips and watch the captions write themselves.

Download on theApp Store

How to batch add captions to multiple videos

Caption a whole batch in one pass

What Batch Mode handles for you

Batch Mode

Captioning one at a time

Batch captioning, answered

More with Just Captions

Caption your whole batch. That's it.