Calculator
What the Image Splitter does
Image Splitter: cuts the image into an even grid of equal tiles, numbered by row and column, with a download-all button. Everything runs in your browser and the file is never uploaded.
Pick a file and the Image Splitter processes it right here in the page. Everything runs on your own device, which means no waiting and no copy left on a server.
Getting the dimensions right before upload avoids a lot of downstream cropping. The Image Splitter exists to take that particular chore off your hands.
The work is done by JavaScript already loaded in your browser, so your input never crosses the network.
Everything needed to verify a result is further down: the fields, the method and one fully worked example.
What do the Image Splitter fields mean?
The Image Splitter uses 5 inputs. It opens with a complete example loaded, which is usually the quickest way to understand what a field means.
| Field | What to enter | Default |
|---|---|---|
| Image file | stays on your device | none |
| Rows | accepts 1 to 12 | 1 |
| Columns | accepts 1 to 12 | 3 |
| Export as | choose from PNG, JPEG or WebP | JPEG |
| Quality % | accepts 10 to 100 | 92 |
How does the Image Splitter work?
Each output is derived from the inputs above in a single pass; there is no hidden state carried between runs, so the same inputs always give the same result.
Each field is verified before use; failures are reported explicitly rather than swallowed.
What a typical run looks like
You provide: Image file, Rows, Columns, Export as and Quality %
What happens: the file is read into memory by your browser, processed locally, and offered back as a download. It is never uploaded.
You get back: the output file, and a status line reporting what the tool read and wrote.
A fast machine finishes sooner than a slow one, and the only ceiling on file size is the memory available to the page.
How to use it
- Choose your file under Image file, or drag it onto the drop area.
- Fill in Rows (1 to 12).
- Type Columns (1 to 12).
- Pick a value for Export as: the options are PNG, JPEG or WebP.
- Set Quality % (10 to 100).
- Press Split.
- Read Status and Tiles in the results panel.
- To keep the result, either copy the link or print the page. Both preserve what is on screen.
What this tool does not do
- Re-encoding a lossy format such as JPEG always loses some detail, even at maximum quality.
- EXIF metadata may be dropped during processing, which is usually desirable but is worth knowing.
- It handles the common case well and the unusual case literally.
- A number that passes validation has been checked for plausibility, not for correctness.
- Performance scales with your own hardware, since no server does the work.
Frequently asked questions
Only Image file, Rows, Columns, Export as and Quality %. Defaults are loaded for all of them, so the form is usable immediately, without filling anything in first.
Rows accepts 1 to 12. The range is enforced before the calculation runs, so a bad entry never reaches the formula.
No. The file is read by your browser and processed inside the page. It is never sent to us, which is also why it keeps working offline once loaded.
It is free with no conditions: no sign-up, and no limit on how often you use it.
It is accurate to the method shown. Rounding only affects what is displayed, never what is computed.