An AI Instagram Reels Generator That Posts for You

Mediasynth generates, captions, and publishes Instagram Reels on your schedule across 19 character-driven formats built for the save-and-share dynamics Reels actually rewards. Set up a premise once, ship daily Reels forever.

200 free credits on signup · No credit card required

By signing up, you agree to our Terms of Service and Privacy Policy.

Built for Reels, Not Repurposed for It

Most "AI Instagram Reels generator" tools are horizontal video editors with a vertical export option. Mediasynth's 19 formats are vertical-first and tuned to the save-and-DM-share dynamics Reels ranks for.

Reddit story

AITA narrations are one of the most-saved content categories on Reels — viewers DM them to friends within minutes.

Tier list

Engineered for the "send this to ___" DM share that Reels weights heavier than likes.

Quiz

The answer-reveal pause forces a complete watch and gives viewers something to share with a specific friend.

Skit

POV scenes ride the relatable-content lane the Explore feed surfaces hardest.

Dialogue

Two-character chemistry produces the screenshot-and-share moments Reels' algorithm rewards.

Text messages

Vertical-native iMessage threads read fluently to the sound-off Reels viewer who hasn't tapped unmute yet.

Rant

High-energy single-character monologues land — but Reels rewards saves over rage, so this isn't the lead format.

The Posting Workflow

Connect your Instagram Business account once via Instagram's official API. Define a premise — the topic source, character cast, format mix, and posting cadence. From there, Mediasynth writes scripts, generates voices and animations, syncs word-level captions sized for sound-off scroll, and uploads each finished Reel on your schedule. No daily logins, no per-video manual work, no exports to download.

The same premise also publishes to YouTube Shorts, TikTok, and Facebook Reels from the same render. One premise, four platforms, on schedule — including Reels-specific caption, hashtag, and cover-frame conventions.

Set It Up Once. Let It Run Forever.

Start with 200 free credits. No credit card required. No daily work.

Join the community on Discord

By signing up, you agree to our Terms of Service and Privacy Policy.