From a phone video to a captioned post, without CapCut
Upload the video you filmed on your phone, and the editor cuts the pauses and filler, adds captions and keeps your face in frame.
From raw take to finished post
Cut by editing the words
The editor writes out everything you said, so you cut a sentence by striking it out. The pauses and the ums come out in one go.
Captions as you speak
Captions follow your words as you talk. If a word's misheard, fix it in the transcript and the caption changes too.
Your face stays in frame
Face follow keeps you in the middle when the video is cropped, so a landscape take still works as a Reel.
B-roll where it helps
Free stock clips from Pexels drop in over the words they match. If stock has nothing that fits, you can make an AI clip instead.
Clearer sound
Turn down background noise and even out the volume, so you're easy to hear.
Every size in one export
Export once and you've got the take for Reels and TikTok, the Instagram feed, LinkedIn and YouTube, without editing it again.
Edit your first video
Upload the take
Drop in the video from your phone or laptop, and the editor writes out what you said.
Cut and caption
Strike what you don't want, pick a caption style and add B-roll.
Export and post
Export every size at once, then post it or attach it to a scheduled post.
Common questions
Start my weekCan I add captions to a video I've already filmed?
Yes. Upload it, and the captions are timed to each word you say. You can fix any word in the transcript.
Can it remove background noise?
Yes. Turn on noise reduction, and the editor evens out the volume as well.
Can I resize one video for Instagram, TikTok and LinkedIn?
Yes. One export gives you a version for each, and face follow keeps you in frame in all of them.
Can it turn a long video into short clips?
Yes. Give it a longer recording and it'll find a few short clips, each saved as its own project.
Can it add a voiceover?
Yes. Type the words and pick a voice. You can also dub a video into Chinese, Malay or Tamil.
Does my video get uploaded?
No. The video file stays on your computer while you edit, and only its sound is sent to make the captions.
Do I need to install an app?
No. It runs in your browser at app.postmosis.com, so there's nothing to download.
Related features
Videos without filming.
Still post a video on the days you can't film.Carousel maker.
Turn a post into slides in your colours, without an hour in Canva.Scheduling.
Schedule your posts from the calendar, or post one now.
Get last week's video out of your camera roll
See the price, start, and make your first posts this week.