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CSV to YAML Converter

Spreadsheet rows into YAML records — a list, keyed by a column, or under a top-level key.

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Drop a CSV file here, or click to choose one

Converted on your device — the file is never uploaded

YAML

Quick Tool Overview

The CSV to YAML Converter turns spreadsheet rows into YAML records — a list, a mapping keyed by the first column, or wrapped under a top-level key — with real types and safe quoting.

What it does
Converts CSV rows to YAML records
You give it
CSV with a header row
You get back
Valid YAML in the shape you choose
Best for
Config, fixtures, manifests and inventories
Converters Free, unlimited use No sign-up Runs in your browser

About the CSV to YAML Converter

Configuration, fixtures, Kubernetes manifests, Ansible inventories and CI pipelines all read YAML, while the list of servers, users or products behind them usually starts life in a spreadsheet. Retyping it is slow and typing a hyphen in the wrong column breaks the file.

Paste the CSV and get valid YAML. Each row becomes a record with the header row as its keys, as a plain list, as a mapping keyed by the first column, or wrapped under a top-level key of your choosing. Numbers and true/false can be read as real types while values with a leading zero stay strings, and anything YAML would otherwise misread — yes, no, on, off, a date — is quoted automatically. Ragged rows are reported rather than silently mangled.

Key features of the CSV to YAML Converter

Three shapes

A plain list, keyed by the first column, or wrapped under a key you name.

Types where they help

Numbers and true/false become real types; values with leading zeros stay strings.

Safe quoting

yes, no, on, off and dates are quoted so YAML reads them back as text.

Ragged rows reported

Rows with a different column count are flagged rather than silently mangled.

Any delimiter

Comma, semicolon, tab or pipe is detected from the file.

How to use the CSV to YAML Converter

  1. 1

    Paste or drop your CSV

    The delimiter is detected; the first row is used as the field names.

  2. 2

    Choose the shape

    A list of records, keyed by the first column, or wrapped under one key.

  3. 3

    Decide about types

    Real numbers and booleans, or keep every value as a string.

  4. 4

    Copy or download the YAML

    Paste it into a config file, a manifest or a fixture.

Frequently asked questions

Yes. A value such as 007 or 0044 is kept as a string, because turning it into a number would lose the zeros — the same rule the CSV to JSON tool follows.

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