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Split image online

Use this image splitter to split image files into rows, columns, or grids. Set equal blocks or fixed size, preview pieces, and download PNG tiles.

What is image splitting?

Image splitting cuts one photo into multiple smaller images: rows, columns, or a grid of tiles. This page is an image splitter workflow where you choose vertical (horizontal strips), horizontal (vertical strips), or both, then split by equal block count or fixed pixel size with optional overlap between neighbors. You can split image in half, into thirds, or into a full grid, preview every piece with dimensions, and download PNG tiles in your browser.

Split image features

Image splitter controls for rows, columns, or grid tiles in the browser.

  • Vertical, horizontal, or grid

    Split into rows, columns, or both for a full tile matrix.

  • Equal blocks or fixed size

    Choose a block count or set height/width in pixels per piece.

  • Optional overlap

    Share pixels between neighbors when overlap is enabled.

  • Live piece preview

    See every tile with dimensions before download.

  • Individual or batch download

    Save one piece or trigger downloads for the full set.

  • PNG output

    Each piece saves as a numbered PNG file.

How to split an image

Steps for image splitter output and tile downloads.

  1. Upload your image

    Use a PNG, JPEG, WebP, or GIF up to 15 MB.

  2. Pick split direction

    Vertically for rows, horizontally for columns, or both for a grid.

  3. Set block count or size

    Equal blocks divide evenly; fixed size repeats until the edge.

  4. Download pieces

    Save tiles individually or download all PNGs in sequence.

Tips for splitting images

Get predictable image splitter tile output.
  • 01

    Start with quantity mode

    Equal blocks are easiest for carousels—try 2–5 pieces first.

  • 02

    Check dimensions

    Each preview card shows width×height before you download.

  • 03

    Use grid for 3×3 posts

    Set quantity 3 vertically and 3 horizontally for nine tiles.

  • 04

    Overlap for print

    Add 10–20 px overlap when tiles will be trimmed and mounted.

  • 05

    Combine with /merge-images

    Stitch pieces back together or merge with another photo after editing.

  • 06

    Watch the 100-piece cap

    Very small block sizes on large images may hit the safety limit.

Image Splitting Tools Compared — Which One Fits Your Workflow

How this free image splitter stacks up against other popular online tools for splitting images into tiles.

  1. PineTools.com

    Split into grid tiles with rows/columns. Basic upload-split-download as ZIP.

  2. ImageSplitter.tools

    Dedicated image splitter with grid split and custom sizes. Clean interface.

  3. ILoveIMG.com

    Split image into equal parts. Batch supported. Free with account.

  4. OnlinePNGTools.com

    PNG image splitter. PNG only. Grid or custom split.

  5. Split Image

    Split any image into equally sized tiles by rows and columns. Download individual tiles. All in browser.

When to split images

Common uses for image splitting.

  • Instagram carousels

    Slice one wide graphic into swipeable square tiles.

  • Puzzle and game assets

    Cut a source image into equal grid cells.

  • Print tiling

    Divide a poster into pages with optional overlap for trimming.

  • Social grid posts

    Split a hero image across a 3×3 profile grid.

Why use this split image tool

Browser-based image partitioning.

  • No install

    Works in any modern browser with Canvas 2D.

  • Private

    Files never leave your device.

  • Flexible grid

    Combine row and column rules for complex layouts.

  • Overlap support

    Add pixel overlap when pieces need a shared edge.

  • Free

    Unlimited splits and downloads.

Technical details

How image splitting works here.
Split algorithm
PineTools-compatible range math for quantity and fixed-size modes with optional overlap.
Cropping
Canvas drawImage extracts each tile from the source bitmap.
Piece limit
Maximum 100 tiles per operation.
Output format
PNG per piece via canvas toDataURL.
Input limits
15 MB upload; longest edge 8192 px.
Browser support
Chromium, Firefox, Safari with Canvas 2D.

Sources & References

Authoritative references on image segmentation techniques, the Canvas rendering technology this tool uses, and the PNG output format.
  • “Image segmentation is the process of partitioning a digital image into multiple segments — sets of pixels, also known as image objects.”
    — Wikipedia — Image segmentation

    Image segmentation fundamentals: This tool partitions an image into rows, columns, or a grid of tiles — applying image segmentation techniques to divide a digital image into discrete regions. en.wikipedia.org/wiki/Image_segmentation

  • “The Canvas API provides a means for drawing graphics via JavaScript and the HTML canvas element.”
    — MDN Web Docs — Canvas API

    Canvas API (client-side image extraction): This tool uses Canvas 2D drawImage to extract each tile from the source image — supporting vertical, horizontal, and grid splits with optional overlap, all locally in your browser. developer.mozilla.org/en-US/docs/Web/API/Canvas_API

  • “PNG supports lossless data compression, making it useful for storing graphics that need to be edited repeatedly without losing quality.”
    — W3C — PNG Specification (overview)

    PNG image format: Each extracted image tile is exported as a PNG file, preserving the full quality of the segmentation without any compression loss. w3.org/TR/PNG/

  • “Image segmentation is the process of partitioning a digital image into multiple image segments, also known as image regions.”
    — Wikipedia — Image segmentation

    Image segmentation in computer vision: This tool partitions a single image into multiple smaller images by cutting along user-defined grid lines — a practical application of digital image segmentation. en.wikipedia.org/wiki/Image_segmentation

Frequently Asked Questions

Quick answers about this tool—open a question to read more.