Free Online Image Splitter & Grid Maker

An image splitter partitions a single raster graphic into multiple independent image files along a horizontal, vertical, or two-dimensional row-and-column grid. Rather than altering the scene inside the picture, the splitter computes integer coordinate boundaries across the source width (W) and height (H), slices the pixel buffer along those lines, and encodes each cell as a standalone PNG, JPEG, or WebP file.

Rows divide the vertical Y-axis from top (y = 0) to bottom (y = H), while columns divide the horizontal X-axis from left (x = 0) to right (x = W). A grid with R rows and C columns produces R × C tiles at their native source pixel resolution without resampling. Placed edge-to-edge, the exported tiles reconstruct the original graphic pixel-for-pixel.

Splitting serves a distinct purpose from cropping and resizing. Crop Image isolates one rectangular region and permanently discards everything outside that box. Resize Image keeps the whole scene in one file but scales its pixel dimensions up or down. An image splitter preserves 100% of the source canvas across contiguous files. For example, splitting a 3600 × 2400 px architectural floorplan into a 2 × 3 grid divides the 3600 px width into 3 columns (1200 px) and the 2400 px height into 2 rows (1200 px), yielding six 1200 × 1200 px square tiles. Practical limitations remain: splitting cannot add detail to a low-resolution file, and cut lines passing through small text or faces will be noticeable if tiles are displayed with spacing between them.

Basic splitters that compute a single truncated tile width—such as Math.floor(W / C)—either drop up to (C − 1) pixel columns along the right and bottom edges or dump the entire remainder onto the final tile. TryImager computes cumulative proportional boundary coordinates across the full axis:

A 3×3 Instagram profile grid slices one high-resolution graphic into nine separate tiles (#1 top-left through #9 bottom-right) that form a unified banner across three rows of a profile page. Because profile grids place the newest upload at the top-left slot and push older posts rightward and downward, uploading Tile #1 first leaves it at the bottom-right (#9) once all nine tiles are posted. Selecting the Instagram 3×3 Profile Grid workflow switches numbering to Reverse Upload Order (#9 → #1) so tile-01 is the bottom-right tile you upload first and tile-09 is the top-left tile you upload last.

For a sharp 3×3 grid, prepare a 3240 × 3240 px square master image (nine 1080 × 1080 px tiles) or a 3240 × 4320 px 3:4 canvas (nine 1080 × 1440 px tiles). Keep two platform constraints in mind: Instagram's profile display order and grid thumbnail crop ratio (1:1 square vs 3:4 portrait preview) can vary across app updates and pinned posts, so always preview your layout before publishing. Additionally, publishing a single new post later shifts every unpinned 3-column row by one slot, breaking horizontal alignment unless you post in multiples of three.

Unlike a 3×3 profile banner—which requires nine separate uploads that appear individually in followers' home feeds—an Instagram carousel splits a wide horizontal panorama into a single 1 × N row of contiguous slides (such as 1 × 3, 1 × 4, or 1 × 5) attached to one multi-photo post. Followers swipe smoothly across the seam boundary from left to right, slides are uploaded in normal reading order (Slide #1 first, Slide #N last), and future posts never break the panorama.

To size a seamless carousel, multiply the single-slide width (1080 px) by your slide count and use a height of 1080 px (1:1 square) or 1350 px (4:5 portrait). For example, a 4-slide portrait panorama measures 4320 × 1350 px and splits into four 1080 × 1350 px slides. Keep faces and small body copy at least 50 px away from the vertical cut coordinates (x = 1080, 2160, 3240), or deliberately span a large display headline across a cut line to invite swiping.

Exporting multiple contiguous tiles introduces seam-alignment considerations that do not apply to single images. PNG encodes every pixel's RGBA values losslessly and preserves full 8-bit transparency, guaranteeing that the rightmost column of Tile (r, c) and leftmost column of Tile (r, c+1) remain mathematically untouched—ideal for UI sprite sheets, transparent cutouts, and tiles reassembled edge-to-edge.

JPEG uses lossy 8×8 Discrete Cosine Transform (DCT) blocks and flattens transparency onto your chosen solid color (#FFFFFF white by default). For photographic social media grids, JPEG at quality 85–92 produces compact, universally compatible files; avoid quality settings below 75 on split panoramas because heavy quantization along cut boundaries can create subtle seam discontinuities. WebP supports both lossy quality control (10–100) and 8-bit alpha transparency, keeping multi-tile ZIP archives compact for web galleries. If an individual tile must fit under a strict portal byte cap, pass it to the Image Compressor.