Long Image Splitter & Grid Cutter
Runs in your browser · Images never uploadedSplit one image into as many pieces as you need: slice a long screenshot into equal parts, divide a photo into columns, or make an Instagram-ready 3×3 grid. Download slices one by one or grab them all as a single ZIP.
Split settings
File names: original-name_01, _02, …
Click to choose an image, or drag and drop it here
PNG, JPG, WebP and other common formats
Features
One-click 3×3 grid
The default 3×3 layout turns a square photo into nine tiles, and rows × columns adjust freely from 1 to 10 — no app needed for your next Instagram or WeChat grid.
Long images, any slice height
Split a tall screenshot by number of slices or by a fixed height per slice, or divide the width into equal columns. The last slice always takes the remainder.
PNG, JPEG and WebP export
Pick the output format and, for JPEG or WebP, the compression quality. Download a single slice or package every slice into one ZIP.
Private, local, free
Every cut runs in your browser with the Canvas API. Images are never uploaded, the tool works offline, and it is completely free.
What you can split
Instagram 3×3 grid
Cut one square photo into nine tiles and post them in order to build a seamless grid across your profile.
Long screenshots and chat logs
When a screenshot is too tall to share, split it into even chunks you can upload one after another without losing any content.
Blog and social images
Cut one big graphic into a set of matching images so every section of your post lines up neatly.
Stories and carousels
Slice a poster or carousel frame into equal parts for platforms with strict size limits or slide counts.
Frequently asked questions
Does splitting an image reduce its quality?+
No. Slicing only crops the original pixels into separate regions — nothing is resized or resampled. PNG export is lossless, and for JPEG or WebP the quality slider controls compression; the default 0.9 looks very close to the original.
Which image formats can I upload?+
Any format your browser can open, including PNG, JPG/JPEG, WebP, GIF (first frame) and BMP. The export format is selected separately: PNG, JPEG or WebP.
Are my images uploaded to a server?+
Never. The tool runs entirely in your browser: decoding, slicing and zipping are all done by the Canvas API on your own device, so it keeps working with no internet connection.
How do I post a 3×3 grid to Instagram?+
Upload a square image, keep the default 3×3 setting and click “Download all slices as ZIP”. Unzip the archive and post the files in _01 to _09 order — the numbering already matches the grid.
How many slices can I make?+
Grid mode goes up to 10×10, or 100 tiles. Vertical and horizontal splitting support up to 100 slices, and height-based cutting depends on your image height. The more slices you make, the longer previews and exports take, so slice only as much as you need.