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.
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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
- 1Connect Instagram
- 2Connect Pinterest
- 3Create the workflow

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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.
What You Need to Know
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.
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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:
Pinterest destination formats
The destination focus is Pinterest pins, while also covering related Pinterest surfaces:
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
| Spec | ||
|---|---|---|
| Caption Limit | 2,200 chars | 500 chars |
| Max Video Length | 1h | 15min |
| Preferred Aspect Ratio | 9:16 | 2:3 |
| Max Video File Size | 4GB | 2GB |
| Carousel Support | Up to 10 items | Up to 5 items |
| Hashtag Strategy | Up to 30 | Up to 20 |
| Link Support | No | Yes |
| Primary Audience | 18-34 | 18-44 |
As Seen On
Trusted by Creators & Brands
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.
Related Crossposting Workflows
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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
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 PinterestCustom 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
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 DestinationsReal-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
Start Crossposting Instagram to Pinterest
Connect your Instagram and Pinterest accounts and start crossposting in minutes. No technical setup required.
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