Free · No watermark · No sign-up
TikTok Banner Splitter
Cut one image into 3 tiles for your TikTok banner or repost banner, or into a 3×3 grid for TikTok and Instagram.
or drop it here · paste with Ctrl/⌘ V
JPG, PNG, WebP or HEIC · Free, no watermark · Nothing is uploaded
Drag to move · pinch, Ctrl + scroll or the slider to zoom
Adjust
Text
Post in this order
Preparing your tiles…
No image yet? Try a sample
Original artwork you can split, preview and download.
How to split a banner into 3 for TikTok
Three steps, and nothing leaves your phone or computer.
Add your image
Pick a wide photo or artwork. A 3240 × 1440 image fits exactly, but any size works: drag it into place and zoom until the three pieces look right.
Check the preview
See the pieces as pinned posts at the top of a TikTok profile, or in your Reposts tab, before you post anything.
Save and post right to left
Save the tiles to your phone. Post and pin the right piece first and the left piece last so the banner reads the right way round.
Post the right piece first
TikTok puts your newest post, newest pin and newest repost at the front of the row. Post the left piece first and it ends up on the right, so the banner reads backwards. RepostGrid labels the tiles 1st, 2nd and 3rd and saves them in that order.
TikTok banner size
Tiles always export 1080 pixels wide. Smaller images still work, they just look softer.
| Layout | Full image | Each tile | Good for |
|---|---|---|---|
| Banner, 3 tiles | 3240 × 1440 | 1080 × 1440 (3:4) | Pinned banner or repost banner |
| Banner, full-screen tiles | 3240 × 1920 | 1080 × 1920 (9:16) | Posts that fill the screen when opened |
| TikTok or Instagram 3×3 | 3240 × 4320 | 1080 × 1440 (3:4) | A 9-post profile grid |
| Carousel, 3 slides | 3240 × 1350 | 1080 × 1350 (4:5) | A seamless swipe post |
Banner cutter, grid maker or carousel
Same splitter, set up for each job.
TikTok banner guides
How to make a TikTok banner
From picking an image to pinning three posts, with sizes and the right order.
How to post and pin a TikTok banner in the right order
Why the right piece goes first, how pinning works, and how to fix a backwards banner.
TikTok banner size: dimensions and safe zones
Pixel sizes for banners and grids, why 3:4 matters, and which corners TikTok covers.
How to post an Instagram grid in the right order
3:4 tiles, bottom-right first, and how to fix mistakes with grid rearranging.
TikTok banner splitter FAQ
What is a TikTok banner splitter?
How do I split a banner into 3 for TikTok?
Which piece do I post first?
How does a repost banner work?
What size should a TikTok banner be?
Will parts of my banner be covered?
Is it free? Is there a watermark?
Are my photos uploaded anywhere?
Does it work on iPhone and Android?
Ready to make your banner?
Choose an image and get three numbered tiles in under a minute.