Automatically Post TikTok Videos To Instagram Reels
PostOnce watches your TikTok source account and can publish eligible videos to Instagram Reels as native uploads, so you do not have to download and repost every video.
Automate TikTok to Instagram7-day free trial · No credit card required · Cancel anytime
Video Tutorial
Watch: How to Auto Post TikTok to Instagram
This demo walks through how to connect TikTok and Instagram in PostOnce, choose crosspost rules, and automatically publish new and existing TikTok content to Instagram.
Setup at a glance
Your automated workflow in three steps
- 1Connect TikTok
- 2Connect Instagram
- 3Create the workflow
7-day free trial · No credit card required · Cancel anytime
Creator spotlight
One creator. Two audiences.
Art & Design
7-day free trial · No credit card required · Cancel anytime
Before you connect
The short answer
Yes, PostOnce can automatically post eligible TikTok videos to Instagram Reels with a reusable source-triggered workflow.
What manual work does this replace?+
- TikTok watermark gets deprioritized in Reels feed
- No native auto-post from TikTok to Instagram
- Captions need to be adapted for Instagram audience
- Music licensing differs between platforms
How creators crosspost TikToks to Reels today+
The most common manual workflow: open TikTok, save your video without posting it (so there is no watermark), or download a posted TikTok using a third-party remover like SnapTik or SSSTik.
Then open Instagram, select Reels, upload the clean video, rewrite the caption, and publish.
Make your Reels look native, not recycled+
Instagram rewards content that feels made for Instagram.
Three things separate a native-looking Reel from an obvious repost.
Skip the manual work with PostOnce+
PostOnce connects your TikTok account to Instagram and handles the crosspost automatically.
When you publish on TikTok, PostOnce picks up the video, removes the watermark, reformats the caption for Reels, and schedules or immediately posts to your Instagram account.
What You Need to Know
How creators crosspost TikToks to Reels today
The most common manual workflow: open TikTok, save your video without posting it (so there is no watermark), or download a posted TikTok using a third-party remover like SnapTik or SSSTik.
Then open Instagram, select Reels, upload the clean video, rewrite the caption, and publish.
Make your Reels look native, not recycled
Instagram rewards content that feels made for Instagram.
Three things separate a native-looking Reel from an obvious repost.
Skip the manual work with PostOnce
PostOnce connects your TikTok account to Instagram and handles the crosspost automatically.
When you publish on TikTok, PostOnce picks up the video, removes the watermark, reformats the caption for Reels, and schedules or immediately posts to your Instagram account.
7-day free trial · No credit card required · Cancel anytime
Direct answer
Can PostOnce automatically post from TikTok to Instagram?
Yes, PostOnce can automatically post eligible TikTok videos to Instagram Reels with a reusable source-triggered workflow. This is crossposting automation: you publish on TikTok, PostOnce watches for eligible TikTok videos, and Instagram receives its own native post instead of a copied link preview.
Content types
Primary wording plus related formats
TikTok source formats
This workflow leads with TikTok videos, and also covers related TikTok formats:
Instagram destination formats
The destination focus is Instagram Reels, while also covering related Instagram 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 TikTok.
- 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 TikTok as the source.
- Connect Instagram 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 TikTok to Instagram
Captions
Long captions may need shortening for Instagram.
Hashtags
Instagram: Up to 30 hashtags allowed; 3-5 targeted hashtags recommended.
Aspect ratio
Both prefer 9:16 video.
Destination format
Eligible media publishes as a native Instagram upload.
Watermark and metadata
PostOnce prioritizes no-watermark TikTok video sources where available.
Music and audio rights
Only reuse audio you have rights to publish on both platforms.
New posts and existing content
For new posts, PostOnce can watch your TikTok source and publish eligible TikTok videos to Instagram Reels 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 Instagram's destination limit, it needs trimming or review before publishing. Instagram supports videos up to 1 hours.
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
TikTok vs Instagram at a Glance
| Spec | TikTok | |
|---|---|---|
| Caption Limit | 4,000 chars | 2,200 chars |
| Max Video Length | 10min | 1h |
| Preferred Aspect Ratio | 9:16 | 9:16 |
| Max Video File Size | 4GB | 4GB |
| Carousel Support | Up to 35 items | Up to 10 items |
| Hashtag Strategy | Unlimited | Up to 30 |
| Link Support | No | No |
| Primary Audience | 16-34 | 18-34 |
As Seen On
Trusted by Creators & Brands
mego71.4K followersBeauty & Lifestyle
mishygirll588.8K followersOnlyFans
hopewalz566.0K followersPolitics
artzenmedia138.0K followersContent Creationcaravature490.9K 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
Yes. With PostOnce, you can connect TikTok as the source, choose Instagram as the destination, and create a workflow so new matching TikTok posts are crossposted to Instagram automatically.
Connect both accounts in PostOnce, create a TikTok to Instagram crossposting workflow, and choose your content filters. After setup, PostOnce can detect new eligible TikTok posts and publish them to Instagram without manual downloading or re-uploading.
Yes. PostOnce lets one eligible TikTok post trigger a matching Instagram post, so you can keep both platforms active without rebuilding the same content twice.
PostOnce preserves your media quality and adapts captions from TikTok's 4,000 character limit toward Instagram's 2,200 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 TikTok captions and only those posts will go to Instagram. Or exclude specific hashtags to skip certain content.
Related Crossposting Workflows
How to automatically post TikTok videos to Facebook Reels
Automatically post TikTok videos to Facebook Reels with native uploads and adapted captions.
How to automatically post your TikTok videos to YouTube Shorts
Automatically post your TikTok videos to YouTube Shorts without downloading and re-uploading.
How to automatically post your TikTok Videos to LinkedIn
Set up automatic crossposting from TikTok Videos to LinkedIn.
Social Media Automation Guide
Build a reliable system for automated publishing and cross-platform distribution.
How to automatically post your Instagram Reels to TikTok
Go the other direction.
TikTok crossposting guides
More destinations from TikTok
All crosspost guides
Browse every platform workflow
Features
How PostOnce Handles It
Set up TikTok to Instagram crossposting once. PostOnce automates the rest, so one native TikTok post can trigger a matching Instagram upload automatically.
Easy TikTok Crossposting Setup
Connect your TikTok and Instagram accounts, choose your crosspost rules, and you're done.
Setup takes under 60 seconds. After that, everything runs automatically in the background.
Set Up TikTok to InstagramNative Video Upload to Instagram
When you crosspost TikTok to Instagram, PostOnce uploads the actual video file — not a link, not a preview.
Your TikTok content appears as a native Instagram post, indistinguishable from content uploaded directly.
Publish Natively to InstagramCustom Crosspost Rules
Not every TikTok 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.
Choose What Reaches Instagram
Automatically Post Your Content to Multiple Platforms
Don't stop at TikTok to Instagram crossposting. Send eligible TikTok videos 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
Real-Time Automation
PostOnce monitors your TikTok account and automatically crossposts new content to Instagram.
No scheduling, no batching. Publish on TikTok and it appears on Instagram within minutes — fully automated TikTok to Instagram posting.
Automate Instagram Publishing
Start Crossposting TikTok to Instagram
Connect your TikTok and Instagram accounts and start crossposting in minutes. No technical setup required.
Automate TikTok to InstagramFree 7-day trial · No credit card required · Cancel anytime