Split YAML Files Online

Split YAML files into multiple smaller files by row count, directly in your browser.

How to split YAML files

Drop your file onto the upload area. The tool loads it and shows the total row and column count.
Enter the number of rows each part should hold in Rows per chunk. The default is 1000.
Click Calculate chunks. A button appears for each part, labelled with its row range, for example Part 2 with rows 1,001–2,000.
Click each part to download it. Every part is a separate file in the same format as the original, named with a _part1, _part2 suffix.

Your file is processed locally in your browser and is never uploaded. The free limit is 50 MB per file; larger files work if your device has the memory for them.

Worked example

An outdoor gear shop is uploading its catalogue to a marketplace that rejects files over a set row limit. Scaled down, the limit here is two products per file.

Input (YAML)

- sku: TR-100
  title: Trail runner shoe
  price: 119
  in_stock: true
- sku: TR-101
  title: Merino running sock
  price: 18.5
  in_stock: true
- sku: TR-102
  title: Rain shell jacket
  price: 164
  in_stock: false
- sku: TR-103
  title: Headlamp 400 lm
  price: 42.99
  in_stock: true
- sku: TR-104
  title: Hydration vest
  price: 89
  in_stock: true

Settings

Rows per chunk: 2
Downloaded: Part 1 (rows 1–2)

Result

sku	title	price	in_stock
TR-100	Trail runner shoe	119	true
TR-101	Merino running sock	18.5	true

Five rows at two per chunk gives three parts: rows 1–2, rows 3–4, and row 5 on its own. Part 1 is shown. Each part has the full header and the rows in their original file order. The last part is smaller because the row count does not divide evenly. Nothing is dropped or repeated between parts.

Frequently Asked Questions

Can I split by a column value, such as one file per region?

Not with this tool, which splits by row count only. Filter the file once per value instead, or use the SQL Query tool.

Do I have to download each part separately?

Yes. Each part has its own download button and saves as a separate file. There is no single zip download.

Can I split a very large file?

Files up to 50 MB can be loaded on the free tier. The whole file is read into browser memory before splitting, so the practical limit also depends on your device.

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