Automatically Post Your Instagram Reels To Pinterest Pins

PostOnce automatically posts eligible Instagram Reels to Pinterest pins, without downloading, re-uploading, or rebuilding the same post by hand.

Automate Instagram to Pinterest

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Video Tutorial

Watch: How to Auto Post Instagram to Pinterest

See how to connect Instagram as the source and Pinterest as the destination, then create a PostOnce workflow that publishes compatible new and existing Instagram Reels, feed posts, and carousels as native Pinterest Pins or video Pins.

Setup at a glance

Your automated workflow in three steps

  1. 1Connect Instagram
  2. 2Connect Pinterest
  3. 3Create the workflow
PostOnce workflow setup screen
A real PostOnce workflow setup screen—not a mockup.
Set Up Instagram to Pinterest

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Before you connect

The short answer

Yes, PostOnce can automatically post eligible Instagram Reels to Pinterest pins with a reusable crossposting workflow.

What manual work does this replace?+
  • Saving Instagram media before creating a separate Pinterest Pin
  • Adapting an Instagram caption into a searchable Pin description
  • Choosing only posts whose media works on Pinterest
  • Keeping a recurring Instagram-to-Pinterest workflow consistent
How to prepare Instagram media for Pinterest+

Choose Instagram posts with an image or video that can stand on its own as a Pin.

Rewrite platform-specific calls to action and turn the caption into a concise title and descriptive Pinterest copy.

Check the crop, any visible Instagram interface elements, and the rights to music or third-party media before the destination post goes live.

Make the destination a native Pin, not an Instagram shortcut+

A native Pinterest Pin gives the media and description a destination-specific presentation.

It is different from pasting an Instagram URL or relying on a link preview.

Keep the useful creative, remove instructions that only make sense inside Instagram, and use filters when a particular Reel, carousel, or image post should stay exclusive to its source account.

Let PostOnce run the Instagram-to-Pinterest workflow+

PostOnce can monitor a connected Instagram account and send eligible media posts into a Pinterest publishing workflow.

After you connect the destination and set the rules, future matches can become native Pins without a new download-and-upload session each time.

You can still review destination copy and exclude posts that do not belong on Pinterest.

Direct answer

Can PostOnce automatically post from Instagram to Pinterest?

Yes, PostOnce can automatically post eligible Instagram Reels to Pinterest pins with a reusable crossposting workflow. This is crossposting automation: you publish on Instagram, PostOnce watches for eligible Instagram Reels, and Pinterest receives its own native post instead of a copied link preview.

Content types

Primary wording plus related formats

Instagram source formats

This workflow leads with Instagram Reels, and also covers related Instagram formats:

Instagram postsInstagram carouselsInstagram Stories

Pinterest destination formats

The destination focus is Pinterest pins, while also covering related Pinterest surfaces:

Pinterest video pinsIdea PinsPinterest image pins

Manual sharing

The manual route usually means sharing a link, sending to a Story, making a Feed post, or downloading the media and uploading it again.

  • Link previews send traffic back to Instagram.
  • Watermarks or source branding can hurt trust.
  • Repeated downloads make daily posting hard to scale.
  • Formats and captions often need cleanup.

Automatic workflow

PostOnce turns the same workflow into a repeatable rule: source account, destination account, filters, and automatic publishing.

  • Connect Instagram as the source.
  • Connect Pinterest as the destination.
  • Choose which posts should crosspost.
  • Let PostOnce publish future matches automatically.

Alternatives and limits

IFTTT-style automations and native share buttons can be useful, but they often create status updates, links, or previews instead of native destination posts.

  • Manual sharing is fine for one-off posts.
  • Generic repurposing tools may require export first.
  • Platform API limits still control what can publish.
  • Music rights do not automatically transfer.

What gets adapted from Instagram to Pinterest

Captions

Long captions may need shortening for Pinterest.

Hashtags

Pinterest: Hashtags improve discoverability; 2-5 relevant hashtags recommended.

Aspect ratio

Video may need adaptation toward 2:3.

Destination format

Eligible media publishes as a native Pinterest upload.

Watermark and metadata

PostOnce prepares media for the destination instead of reposting a link card.

Music and audio rights

Licensed Instagram sounds may not be usable on Pinterest.

New posts and existing content

For new posts, PostOnce can watch your Instagram source and publish eligible Instagram Reels to Pinterest pins after the workflow is created.

For existing or backlog content, use PostOnce to refill a workflow deliberately instead of dumping months of posts at once. Scheduled batches keep the destination account active without overwhelming followers.

If a video is longer than Pinterest's destination limit, it needs trimming or review before publishing. Pinterest supports videos up to 15 minutes.

Proof before you turn it on

Confirm the connected source account

Select the destination account or Page

Review filters and caption rules

Check the queue and destination post after publish

Instagram vs Pinterest at a Glance

SpecInstagramPinterest
Caption Limit2,200 chars500 chars
Max Video Length1h15min
Preferred Aspect Ratio9:162:3
Max Video File Size4GB2GB
Carousel SupportUp to 10 itemsUp to 5 items
Hashtag StrategyUp to 30Up to 20
Link SupportNoYes
Primary Audience18-3418-44

Frequently Asked Questions

Yes. With PostOnce, you can connect Instagram as the source, choose Pinterest as the destination, and create a workflow so new matching Instagram posts are crossposted to Pinterest automatically.

Connect both accounts in PostOnce, create a Instagram to Pinterest crossposting workflow, and choose your content filters. After setup, PostOnce can detect new eligible Instagram posts and publish them to Pinterest without manual downloading or re-uploading.

Yes. PostOnce lets one eligible Instagram post trigger a matching Pinterest post, so you can keep both platforms active without rebuilding the same content twice.

PostOnce preserves your media quality and adapts captions from Instagram's 2,200 character limit toward Pinterest's 500 character limit. Media format, hashtags, and destination rules still depend on each platform's requirements.

Yes. Use hashtag filters to control which posts crosspost. For example, add #crosspost to Instagram captions and only those posts will go to Pinterest. Or exclude specific hashtags to skip certain content.

Features

How PostOnce Handles It

Set up Instagram to Pinterest crossposting once. PostOnce automates the rest, so one native Instagram post can trigger a matching Pinterest upload automatically.

Easy Instagram Crossposting Setup

Connect your Instagram and Pinterest accounts, choose your crosspost rules, and you're done.

Setup takes under 60 seconds. After that, everything runs automatically in the background.

Set Up Instagram to Pinterest
Setup flow

Native Video Upload to Pinterest

When you crosspost Instagram to Pinterest, PostOnce uploads the actual video file — not a link, not a preview.

Your Instagram content appears as a native Pinterest post, indistinguishable from content uploaded directly.

Publish Natively to Pinterest

Custom Crosspost Rules

Not every Instagram post belongs on Pinterest. Set hashtag filters, content type rules, or account-level controls to choose what gets crossposted.

Only the content you want on Pinterest ends up there.

Choose What Reaches Pinterest
Filter rules

Automatically Post Your Content to Multiple Platforms

Don't stop at Instagram to Pinterest crossposting. Send eligible Instagram Reels to several connected destinations, including another account on the same platform where supported.

One post, everywhere. Each platform gets a native upload with adapted formatting.

Add More Destinations
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reddit logo
threads logo

Real-Time Automation

PostOnce monitors your Instagram account and automatically crossposts new content to Pinterest.

No scheduling, no batching. Publish on Instagram and it appears on Pinterest within minutes — fully automated Instagram to Pinterest posting.

Automate Pinterest Publishing
Automation

Start Crossposting Instagram to Pinterest

Connect your Instagram and Pinterest accounts and start crossposting in minutes. No technical setup required.

Automate Instagram to Pinterest

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