Free Online Image Splitter · No Watermark · No Sign-up

Image Splitter for TikTok Banners and Instagram Grids

Upload one image and split it into repost-ready grids, Instagram tiles, carousel slides, or custom layouts in seconds.

100% in your browser — your photos never leave your device. Supports JPG, PNG, WebP & HEIC*.

Trending splitters

Pick a popular image and test the splitter instantly.

Drop your image here, or click to upload

JPG · PNG · WebP · HEIC (if your browser supports it) — split image into grid tiles instantly

Tip: you can also paste an image with ⌘V / Ctrl+V

Drag to move · Scroll or use the buttons to zoom & rotate

Layout

Tile ratio

Adjust

Zoom

Rotate

Grid lines

Background fill

Your tiles & posting order

Export

Format

Post to

Popular grid layouts to split an image into tiles

From a 1x3 image splitter for TikTok banners to a 3x3 image splitter that splits an image into 9 parts for your Instagram grid — pick a preset and RepostGrid handles the slicing.

One image splitter, every social format

RepostGrid works as a TikTok repost banner maker, an Instagram grid maker, and a carousel image splitter — all in one free tool.

TikTok Repost Banner

Split a wide image into a 1x3 TikTok banner. Pin the three tiles to the top of your profile for a seamless header that grabs attention.

Instagram Grid

Turn one photo into a 3x3, 3x4, 3x5, or 3x6 Instagram grid. Post the tiles in the order we give you and your profile assembles into one big image.

Carousel Slides

Slice a panorama into seamless swipeable carousel slides for Instagram, LinkedIn, or X. Export in square, widescreen, or vertical ratios so nothing gets cropped by the app.

Custom Grids

Need something else? Split any image into a custom grid up to 6×8 tiles for collages, puzzles, printing, or creative posting experiments.

Cinematic grid

Anime TikTok grid banner split into tiles — Anime mural

Film profile

Character mural

Pop culture TikTok grid takeover — Pop culture

Sports mural TikTok grid made from one image — Sports mural

Love profile

Image doesn't fit the grid? Expand it.AI coming soon

When your photo's aspect ratio doesn't match the target grid, most tools force you to crop. RepostGrid gives you smarter options today — and an AI image expander is on the way to fill the empty space with generated content that matches your photo.

Available now: blurred background fill that extends your photo's own colors
Available now: solid color, gradient, or transparent PNG padding
Coming soon: AI expand image to fit grid — outpaint the edges automatically

How to split an image into a grid

Four steps from a single photo to a repost-ready grid — no account, no software install, no watermark.

Upload your image

Drag & drop or click to upload a JPG, PNG, WebP, or HEIC photo. Everything is processed locally in your browser.

Choose a layout

Pick 1x3 for a TikTok banner, 3x3 for an Instagram grid, or set a custom rows × columns layout with your preferred tile ratio.

Crop & adjust

Move, zoom, and rotate your photo. Use Fit to keep everything visible or Fill for edge-to-edge tiles, and pick a background fill.

Download & post

Download the image tiles one by one or as a ZIP, then post them in the numbered posting order so your grid assembles perfectly.

Recommended image dimensions

RepostGrid exports every tile at 1080px wide — the resolution Instagram and TikTok recommend. For the sharpest results, upload an image at least as large as the total grid size below.

Layout	Best for	Tiles	Tile size (1:1)	Ideal upload size
1x3	TikTok repost banner, 3-slide carousel	3	1080 × 1080	3240 × 1080 or larger
2x3	Two-row Instagram grid feature	6	1080 × 1080	3240 × 2160 or larger
3x3	Classic 9-tile Instagram grid	9	1080 × 1080	3240 × 3240 or larger
3x4	Tall Instagram grid takeover	12	1080 × 1080	3240 × 4320 or larger
3x5	Extended profile mural	15	1080 × 1080	3240 × 5400 or larger
3x6	Full-profile grid takeover	18	1080 × 1080	3240 × 6480 or larger

Frequently asked questions

Everything about how to split an image into a grid, make an Instagram grid, or build a TikTok repost banner.

How do I split an image into a grid?

Upload your image to RepostGrid, choose a grid layout such as 3x3, then adjust the crop with Fit, Fill, zoom, or rotate. Your tiles update automatically, and you can download every tile individually or grab them all in one ZIP, already numbered in the right posting order.

How do I make an Instagram grid from one photo?

Instagram profile grids are 3 tiles wide. Pick a 3x3, 3x4, 3x5, or 3x6 layout, split your photo, and post the tiles in reverse order — the tile numbered 1 goes up first. Because Instagram shows the newest post first, your image will assemble correctly on your profile.

How do I make a TikTok repost banner?

Choose the 1x3 layout to split a wide image into three tiles. Post them to TikTok in the numbered order RepostGrid gives you (right tile first) so the banner reads left to right across the top of your profile grid.

Is RepostGrid free? Do you add watermarks?

Yes — RepostGrid is a completely free image splitter with no watermarks, no sign-up, and no upload limits.

Are my photos uploaded to a server?

No. RepostGrid splits images entirely in your browser using the HTML5 canvas. Your photos never leave your device, which also makes it fast — even for an 18-tile 3x6 grid.

What image formats are supported?

JPG, PNG, and WebP work in every modern browser. HEIC works in browsers that decode it natively (such as Safari). You can export tiles as JPG, PNG, or WebP — including transparent PNG or WebP output.

Free image splitter

Ready to split your image into a grid?

Upload a photo, choose a TikTok banner or Instagram grid layout, then download numbered tiles in the right posting order.