Crosspost from Instagram to Reddit Automatically
Auto post Instagram to Reddit instantly — no downloads, no re-uploads, no manual work. Just publish on Instagram and your content appears on Reddit.
Get Started Free7-day free trial · Cancel anytime
The reality of posting Instagram content to Reddit
! Reddit 'crosspost' means sharing within Reddit, not from Instagram
+ ! Most subreddits restrict self-promotion heavily
+ ! Instagram watermarks or branding look out of place on Reddit
+ ! Reddit community norms are more important than any technical constraint
↓ There's an easier way
What You Need to Know
How creators crosspost Instagram content to Reddit today
Effective workflow: download the original video or image file (before Instagram applies branding), check the target subreddit's rules for video posts and self-promotion limits, upload to Reddit as a direct media post (not a link to Instagram), write a post title that functions like a headline for that community specifically.
Make your Reddit post feel native
Reddit communities are among the most hostile environments for obviously repurposed content.
Three things determine whether a post feels native.
Skip the manual work with PostOnce
PostOnce handles Instagram-to-Reddit crossposting as a native media upload to the subreddits you specify.
When you post on Instagram, PostOnce picks up the image or video, removes the Instagram branding, and posts to the subreddit with the title template you configure.
7-day free trial · Cancel anytime
Features
How PostOnce Handles It
Set up Instagram to Reddit crossposting once. PostOnce automates the rest.
Easy Instagram Crossposting Setup
Connect your Instagram and Reddit accounts, choose your crosspost rules, and you're done.
Setup takes under 60 seconds. After that, everything runs automatically in the background.
Start your free trial
Native Video Upload to Reddit
When you crosspost Instagram to Reddit, PostOnce uploads the actual video file — not a link, not a preview.
Your Instagram content appears as a native Reddit post, indistinguishable from content uploaded directly.
Start your free trialCustom Crosspost Rules
Not every Instagram post belongs on Reddit. Set hashtag filters, content type rules, or account-level controls to choose what gets crossposted.
Only the content you want on Reddit ends up there.
Start your free trial
Auto Post to Multiple Platforms
Don't stop at Instagram to Reddit crossposting. Auto post your Instagram content to YouTube Shorts, Facebook, LinkedIn, Threads, and more — all at once.
One post, everywhere. Each platform gets a native upload with adapted formatting.
Start your free trial
Real-Time Automation
PostOnce monitors your Instagram account and automatically crossposts new content to Reddit.
No scheduling, no batching. Publish on Instagram and it appears on Reddit within minutes — fully automated Instagram to Reddit posting.
Start your free trial
Instagram vs Reddit at a Glance
| Spec | ||
|---|---|---|
| Caption Limit | 2,200 chars | 40,000 chars |
| Max Video Length | 1h | 15min |
| Preferred Aspect Ratio | 9:16 | 16:9 |
| Max Video File Size | 4GB | 1GB |
| Carousel Support | Up to 10 items | Up to 20 items |
| Hashtag Strategy | Up to 30 | Not used |
| Link Support | No | Yes |
| Primary Audience | 18-34 | 18-39 |
Trusted by Creators & Brands
mego71.4K followersBeauty & Lifestyle
mishygirll588.8K followersOnlyFans
hopewalz566.0K followersPolitics
artzenmedia138.0K followersContent Creation
caravature490.9K followersArt & Design
getnaturaljackson441.5K followersSelf Improvement
Revista Etcétera286K followersNews & Media
soleretriever169.0K followersSneakers
ismerlinglive38.9K followersStreaming & Gaming
DolceDormire.ro42.2K followersRetail & E-commerce
eddie115.7K followersBusinessmego71.4K followersBeauty & Lifestylemishygirll588.8K followersOnlyFanshopewalz566.0K followersPoliticsartzenmedia138.0K followersContent Creationcaravature490.9K followersArt & Designgetnaturaljackson441.5K followersSelf ImprovementRevista Etcétera286K followersNews & Mediasoleretriever169.0K followersSneakersismerlinglive38.9K followersStreaming & GamingDolceDormire.ro42.2K followersRetail & E-commerceeddie115.7K followersBusinessFrequently Asked Questions
Under 60 seconds. Connect both your Instagram and Reddit accounts, choose your filter rules, and you're done. New Instagram posts will automatically appear on Reddit.
PostOnce automatically adapts your 9:16 Instagram videos to Reddit's preferred 16:9 format, ensuring they look native.
Yes. Use hashtag filters to control which posts crosspost. For example, add #crosspost to Instagram captions and only those posts will go to Reddit. Or exclude specific hashtags to skip certain content.
Your captions transfer in full since Reddit supports up to 40,000 characters, which accommodates Instagram's 2,200 character limit.
Start Crossposting Instagram to Reddit
Connect your Instagram and Reddit accounts and start crossposting in minutes. No technical setup required.
Get Started FreeFree 7-day trial · Cancel anytime