Split YAML File into Multiple Files

Withdata DataFileSplitter splits a large yaml file into several smaller files locally — by object count (a fixed number of records per file) or by column value (one file per distinct value). 100% local, secure, and cross-platform.

YAML (*.yaml, *.yml) is a human-readable data serialization format.

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Why Choose Withdata DataFileSplitter as a YAML Splitter?

🔒 100% Local & Secure

All splitting runs on your own computer. Nothing is uploaded to any cloud server.

⚡ Fast Streaming Split

Files larger than 4GB are streamed with low memory usage, so a big file does not have to be loaded first.

📊 Split by Object Count

Write a fixed number of records per output file, and get as many files as the data needs.

📌 Split by Column Value

Write one file for every distinct value in a chosen column — one file per account, per region, per day, and so on.

🖥 Windows, macOS, Linux

Native builds for Windows, macOS and Linux, with a step-by-step GUI wizard and a command line interface.

⏱ CLI & Scheduled Tasks

Save a split session and run it automatically from Windows Task Scheduler or crontab.

Full Feature Comparison

FeatureSupported details
InputA YAML file (larger than 4GB is fine)
Output formatYAML (*.yaml, *.yml), written with the original indent and flow style
Split modeBy object count (N records per file) · by column value (one file per distinct value)
Running modeGUI wizard · command line · scheduled tasks
Source optionsFormat-specific parsing for YAML, encoding
Output optionsOutput folder and file name pattern, header kept in every file
PlatformWindows, macOS, Linux (native, 64-bit)

All YAML Split Options You Need

YAML Splitting — Notes

How to Split a YAML File (4 Steps)

  1. Open Withdata DataFileSplitter and load the YAML file.
  2. Choose the split mode: by object count (how many records go into each file) or by column value (which column decides the groups).
  3. Check the preview, then choose the output folder and the file name pattern. The header is kept in every file.
  4. Click Split — the smaller YAML files are written in seconds. Save the session if you want to run it again from the command line.

Split YAML File in GUI

In GUI mode the split is a step-by-step wizard: load the file, choose the split mode, check the preview, choose the output folder, and click Split. See Withdata DataFileSplitter.

Set scheduled tasks for splitting YAML files

After splitting a YAML file in the command line, you can schedule and automate it:

  1. Save the session and create a .bat (Windows) or .sh (Linux/macOS) file for the split.
  2. Set a scheduled task: on Linux/macOS use crontab; on Windows use the Task Scheduler.

FAQ

How large a YAML file can be split?

Is my data safe while splitting?

Does it work on Linux and macOS?

How do I choose how many files the split produces?

Are the columns of the output the same as the input?

Can I automate the split from the command line?

Does it handle nested YAML?

Do you support YAML anchors, aliases or multi-document files?

Start Splitting YAML Files Today

Download Withdata DataFileSplitter for a free trial. Runs on Windows, macOS and Linux.

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