CSV to YAML Converter

CSV → YAML 1.2 sequence of mappings. RFC 4180 quoting supported, including embedded commas and doubled quotes.

Infer scalar types (numbers, booleans, empty → null)

CSVid,name,role,active,joined
1,Ada Lovelace,engineer,true,1843-01-01
2,"Hopper, Grace",admiral,true,1906-12-09
3,Alan Turing,researcher,false,1912-06-23

YAML- id: 1
  name: Ada Lovelace
  role: engineer
  active: true
  joined: '1843-01-01'
- id: 2
  name: Hopper, Grace
  role: admiral
  active: true
  joined: '1906-12-09'
- id: 3
  name: Alan Turing
  role: researcher
  active: false
  joined: '1912-06-23'

CSV to YAML Converter — Free Online Tool

Converts CSV data into a YAML 1.2 sequence of mappings using the header row as keys, honoring RFC 4180 quoting for embedded commas, newlines and doubled quotes, with optional scalar inference that turns bare numbers, booleans and empty cells into real YAML types instead of strings, useful for seeding fixtures, Ansible vars and Kubernetes ConfigMap data from spreadsheets.

How to use the CSV to YAML Converter

Open the tool above — it runs entirely in your browser, so your input never leaves this page.
Paste or type your input into the field, then press the relevant button (e.g. Encode / Decode, Generate, or Convert).
Copy the result from the output area with the copy button orCtrl/Cmd + C.
No signup, no upload, and no tracking — repeat as often as you need.

Frequently asked questions

Does it handle commas inside quoted CSV fields?

Yes. The parser follows RFC 4180: a field wrapped in double quotes may contain commas, newlines and escaped quotes (written as two double quotes in a row), and the quotes are stripped from the result.

Why are my numbers quoted as strings in the YAML?

Turn on scalar inference. With it off every cell stays a string, which is the safe default for values like leading-zero zip codes or product SKUs; with it on, bare numbers, true/false and empty cells become real YAML numbers, booleans and nulls.

Can I use the output as Kubernetes or Ansible data?

Yes. The output is a YAML sequence of mappings, which is exactly the shape Ansible vars files and Kubernetes ConfigMap list data expect — indent it under the appropriate key and it drops straight in.

Free & private — why use this CSV to YAML Converter

The CSV to YAML Converter runs 100% client-side in your browser. Your data is never uploaded to a server, no account is required, and the tool is completely free. It works offline once the page has loaded and is part of a growing collection of privacy-first developer utilities.

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