Multiposter
Multiposter is an auto poster for getting your TikTok content onto Instagram Reels: connect both accounts once through each platform’s official OAuth screen, upload the video, and publish or schedule to both platforms in one step. The file goes to Instagram through the official Graph API at full quality.
The workflow is three steps. Connect: authorize TikTok and Instagram via OAuth — no passwords shared, tokens revocable anytime. Upload once: drop in your clean vertical export (not a watermarked TikTok download — Instagram demotes visibly recycled videos). Caption and publish: write the caption, add hashtags, and post now or schedule each platform for its best time.
Start cross-posting free — the Launch plan includes 8 uploads a month with no credit card.
Connect your TikTok and Instagram accounts to Multiposter through each platform’s official OAuth screen, upload your video once, select Instagram Reels (and any other platforms), then publish or schedule. Multiposter delivers the file through the Instagram Graph API — no re-uploading in the Instagram app.
Yes — Instagram has said it reduces distribution of visibly recycled videos, and the TikTok logo is the clearest signal. That’s why Multiposter works from your original export, not a TikTok download: upload the clean file once and Reels receives it watermark-free at full quality.
No. Both platforms use vertical 9:16 video. Multiposter checks Instagram’s length and size limits before publishing, so a standard TikTok-length clip uploads cleanly as a Reel without re-exporting.
Yes. Publish everywhere at once, or schedule per platform — for example TikTok in the afternoon and the Reel in the evening when your Instagram audience is most active.
No. Instagram connects through Meta’s official OAuth flow, so Multiposter never sees your password. Access tokens are stored encrypted, and you can revoke them from Instagram or disconnect inside Multiposter at any time.
Yes. The Launch plan is free forever — 8 uploads a month with no credit card. Enough to cross-post every TikTok you make this week to Reels and see the workflow end to end.