Crosspost from LinkedIn to Instagram Automatically

Auto post LinkedIn to Instagram instantly — no downloads, no re-uploads, no manual work. Just publish on LinkedIn and your content appears on Instagram.

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LinkedIn carousels on Instagram: what actually transfers

! LinkedIn carousels require a resize tool to become Instagram carousels — they're different aspect ratios

+ ! Links in Instagram captions are not clickable, unlike LinkedIn

+ ! Professional tone on LinkedIn doesn't match Instagram's more personal, visual-first feed

+ ! No native integration between LinkedIn and Instagram for automatic cross-posting

= too much manual work

↓ There's an easier way

What You Need to Know

01

How creators crosspost LinkedIn posts to Instagram

The most common workflow: screenshot or export your LinkedIn post as an image (several tools like Contentdrips do this), then post it as an Instagram feed post or Story.

For carousels, creators use Canva to rebuild the slides at 1080x1080 or 1080x1350.

For video content, they trim the LinkedIn video to under 60 seconds for Reels.

The caption gets rewritten — shorter, more personal, with a call to action pointing to the bio link instead of an inline URL.

This process takes 15-30 minutes per post when done manually.

Do it daily and it compounds into hours of overhead.

02

Make your Instagram posts look like they belong there

Instagram Reels rewards hooks in the first 3 seconds and content that keeps people watching to the end.

Feed posts perform best with high-contrast visuals and a caption that opens with a strong first line before the 'more' cut.

Stories disappear after 24 hours — use them for time-sensitive repurposes of LinkedIn content.

Hashtags on Instagram still matter but 3-5 targeted ones outperform 30 generic ones.

Your tone should shift from 'professional insight' to 'here's something useful I learned' — same information, warmer delivery.

03

Skip rebuilding every post by hand

PostOnce automates the LinkedIn-to-Instagram crosspost.

When you post on LinkedIn, PostOnce pushes the content to Instagram with format adjustments handled automatically.

Video gets reformatted for Reels, captions are adapted for Instagram's style, and your post goes live without you opening a second tab.

Connect both accounts once, set your crosspost rule, and stop rebuilding the same content twice.

Skip the manual work

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Features

How PostOnce Handles It

Set up LinkedIn to Instagram crossposting once. PostOnce automates the rest.

Easy LinkedIn Crossposting Setup

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

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

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Setup flow

Native Video Upload to Instagram

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

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

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Custom Crosspost Rules

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

Only the content you want on Instagram ends up there.

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Filter rules

Auto Post to Multiple Platforms

Don't stop at LinkedIn to Instagram crossposting. Auto post your LinkedIn content to YouTube Shorts, Facebook, LinkedIn, Threads, and more — all at once.

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

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Real-Time Automation

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

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

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Automation

LinkedIn vs Instagram at a Glance

SpecLinkedInInstagram
Caption Limit3,000 chars2,200 chars
Max Video Length10min1h
Preferred Aspect Ratio16:99:16
Max Video File Size5GB4GB
Carousel SupportUp to 20 itemsUp to 10 items
Hashtag StrategyUnlimitedUp to 30
Link SupportYesNo
Primary Audience25-4518-34

Frequently Asked Questions

Under 60 seconds. Connect both your LinkedIn and Instagram accounts, choose your filter rules, and you're done. New LinkedIn posts will automatically appear on Instagram.

PostOnce automatically adapts your 16:9 LinkedIn videos to Instagram's preferred 9:16 format, ensuring they look native.

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

PostOnce intelligently adapts your captions from LinkedIn's 3,000 character limit to fit Instagram's 2,200 character limit, preserving your key message.

Start Crossposting LinkedIn to Instagram

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

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