YAML to CSV Converter
Convert YAML to CSV online, for free, straight from your browser. This YAML to CSV converter turns a YAML list of flat records — from a .yaml or .yml file — into a spreadsheet-ready CSV file. Column headers are collected from every key found across the list, so records with slightly different fields are handled gracefully.
Drop your YAML file here
or
Supports .yaml and .yml files, processed entirely on your device
YAML →JSON
Your converted output will appear here.Conversion notes
What to expect
- Best suited to a YAML list of mappings with similar keys.
- Missing fields are left blank rather than breaking the export.
- Values with commas, quotes, or line breaks are automatically escaped.
Example
- name: Aperture Docs
version: 1.4.2
active: true
- name: Beacon CLI
version: 0.9.0
active: false
- name: Contour Sync
version: 2.1.0
active: true
name,version,active
Aperture Docs,1.4.2,true
Beacon CLI,0.9.0,false
Contour Sync,2.1.0,true
YAML to CSV Converter FAQ
What YAML structure works best for CSV?
A top-level list of mappings, where each mapping represents one row, converts most predictably.
Can I convert YAML to CSV in Python?
Yes — load the YAML with PyYAML and write the rows with the built-in `csv` module (`csv.DictWriter` works well for a list of records). This tool gives you the same CSV output instantly, without writing a script.
What if my records have different keys?
The header row includes every key found across all records; rows missing a field simply have an empty cell there.
Can I open the result in Excel or Sheets?
Yes, the downloaded .csv file opens directly in any spreadsheet application.
Is there a difference between .yml and .yaml?
No. ".yml" and ".yaml" are just two file extensions for the exact same format — this converter accepts either one, so a "yml to CSV" conversion and a "yaml to CSV" conversion produce identical results.