5 min setup

How to Post to Instagram and Facebook at Once

Instagram and Facebook together give you access to 2B+ monthly active users and 3B+ monthly active users through different discovery mechanics. Publishing to both from a single upload maximizes reach without doubling the distribution workload.

Post to Instagram and Facebook simultaneously in 4 steps

1
Connect your Instagram and Facebook accounts
Go to the Connections page in Synchro and connect both accounts via OAuth. You only do this once — all future uploads use the same connections.
2
Upload your video file
From the Dashboard, click New Upload and select your video file. Synchro uploads it to cloud storage in the background while you fill in metadata.
3
Set your title and description
Fill in your title, description, and tags. These apply to both Instagram and Facebook by default — you can override per platform if needed.
4
Select Instagram and Facebook, then publish
Check both platforms in the selector and click Publish. Synchro uploads to each platform's official API simultaneously and gives you direct links when complete.

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Instagram and Facebook — specs at a glance

Instagram Reels

Reels-first platform with strong visual discovery

Audience: 2B+ monthly active users
Max duration: Reels up to 15 minutes
Aspect ratio: 9:16 (vertical) preferred for Reels
Max file size: 4 GB

Facebook

Largest social network, strong for communities and groups

Audience: 3B+ monthly active users
Max duration: Up to 4 hours
Aspect ratio: 16:9 or 1:1 for feed videos
Max file size: 10 GB

Tips for Instagram and Facebook

Instagram tips

First frame matters most — use a high-contrast visual to stop the scroll
Reels get more algorithmic reach than regular video posts
Audio drives discovery; trending audio boosts reach, original audio builds brand

Facebook tips

Native video gets significantly more reach than YouTube links shared on Facebook
Square (1:1) format performs well in the Facebook feed on mobile
Captions are essential — most Facebook videos are watched without sound

Frequently asked questions

Can I post the same video to Instagram and Facebook?

Yes. Most video content can be published to both platforms from a single file. The main consideration is format: Instagram recommends 9:16 (vertical) preferred for Reels while Facebook prefers 16:9 or 1:1 for feed videos. If you upload a landscape video to a vertical-first platform it will display with letterboxing. Synchro handles distribution to each platform simultaneously from one upload.

How long does it take to post to Instagram and Facebook at the same time?

With Synchro, the workflow takes 3–5 minutes: upload your video file, set your title and description, select both Instagram and Facebook, then publish. Synchro uploads to both platforms' APIs simultaneously — you do not wait for one upload to finish before the other starts.

Do I need a tool to post to Instagram and Facebook simultaneously?

You can upload manually to each platform, but that means two separate upload interfaces, filling in the same metadata twice, and waiting for each independently. A video distribution tool like Synchro handles both from a single upload — saving 15–30 minutes per video for creators publishing to multiple platforms regularly.

Post to Instagram and Facebook from one upload

Synchro is free to start. Connect your accounts, upload your video, and publish to both platforms in under 5 minutes.

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