
Clip, caption and publish shorts from any long video
#1Search AI tools, categories, and leaderboards
Castmagic records 182,879 monthly visits with -15.2% month-over-month growth and Freemium, Free Trial, Paid pricing. Postel records 121,244 monthly visits with +5.8% growth and Free Trial, Paid pricing.

AI writing assistant that drafts and schedules social posts in your own voice
| Dimension / Metric | ![]() | ![]() |
|---|---|---|
| Official Domain | castmagic.io | postel.app |
| Pricing Model | Freemium, Free Trial, Paid | Free Trial, Paid |
| Monthly Visits | 182.88K (182,879) | 121.24K (121,244) |
| MoM Traffic Delta |
| -32.88K (-15.2%) |
| +6.68K (+5.8%) |
| Primary Market & Share | 🇺🇸 United States (45.4%) | 🇺🇸 United States (14.8%) |
|---|
| Direct Visits / mo | 76.48K | 21.61K |
|---|
| User Rating | 4.3 | 4.2 |
|---|
| Supported Platforms | Website | Website |
|---|

Turn long-form audio and video into a full content library with AI
Transcripts arrive minutes after upload with speaker labels and timestamps, plus editable text and audio/video playback for review.
Show notes, newsletters, blog articles, LinkedIn and Instagram posts, standout quotes, action items, meeting recaps, and audiograms are generated from the same recording.
Captioned vertical clips cut for short-form platforms, swipeable image carousels, and AI image generation live alongside the text pipeline.
A strategist that has heard your whole library suggests what to publish next, while Audience Chat puts a lead-capturing chatbot trained on your episodes on your site.

AI writing assistant that drafts and schedules social posts in your own voice
Reads your historical posts to map line length, opening style, vocabulary and banned phrases so drafts sound like you.
Generates one drafted post for every day you normally publish and slots each into a calendar automatically.
Publishes to LinkedIn out of the box and connects X, Bluesky, Mastodon, TikTok and YouTube.
Accepts call notes, links, voice memos and podcast recordings as source material for new content.

Clip, caption and publish shorts from any long video
#1
AI video repurposing with automatic captions for viral shorts

Turn long videos into viral short clips with AI, in one click.

Paste a long video, get a batch of captioned vertical clips - then let Ssemble post them.
Turn long videos into viral TikToks, Reels and Shorts in one click

Turn Twitch, YouTube and Kick streams into viral vertical clips with AI

Social media management, scheduling and X/Twitter tools in one place

AI clip maker that turns streams into ready-to-post shorts
AI video clipping and social publishing suite for creators
Turn documents, videos and ideas into AI slides, narrated avatar videos, charts and posters
Turn blogs, videos and podcasts into eBooks, flipbooks and lead magnets in minutes

Write, schedule, automate and analyse your X growth in one place
Turn long videos into viral short clips with AI, in one click.
Paste a long video, get a batch of captioned vertical clips - then let Ssemble post them.
Turn long videos into viral TikToks, Reels and Shorts in one click
Turn Twitch, YouTube and Kick streams into viral vertical clips with AI
Social media management, scheduling and X/Twitter tools in one place
AI clip maker that turns streams into ready-to-post shorts
AI video clipping and social publishing suite for creators
Turn documents, videos and ideas into AI slides, narrated avatar videos, charts and posters
Turn blogs, videos and podcasts into eBooks, flipbooks and lead magnets in minutes
Write, schedule, automate and analyse your X growth in one place