Upload a video
Drop a short vertical video — Postly will write platform-tailored captions and post everywhere when you approve.
Drop a video here
or click to choose — MP4, MOV, M4V, WebM
Uploading video
Extracting keyframes
Transcribing audio (local Whisper)
Encoding for upload
Generating captions & carousel with Claude
Rendering carousel slides
Review & edit captions
Click a card to edit. Tap the checkbox to skip a platform.
Carousel preview
6 slides generated from the video. Will publish to IG, Facebook, LinkedIn.