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YAML to CSV

Convert a YAML list into a CSV table without dropping any fields.

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Base64 Encoder/Decoder

Fast conversion between string and base64 encodings

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JSON Tree Viewer

Inspect nested JSON structures and fix syntax errors

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JWT Encoder/Decoder

Decode a JWT to read its header, payload and expiry status. Decoding only: signatures are not verified.

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WHAT IS YAML TO CSV?

Convert a YAML list of records to a CSV table, using the same column rules as JSON to CSV so no field is dropped.

How to use?

  1. Paste or upload your YAML list.
  2. Click Convert and review the CSV output.
  3. Copy or download it.

Frequently asked questions

What shape does the YAML data need to be for a clean CSV export?

A list of mapping items (e.g. multiple records) works best — the CSV header becomes the union of every item's keys, with a blank cell for anything a given item omits, so no column is lost.

What if the YAML is a single object rather than a list?

It's treated as a single row: the object's own keys become the header and its values become that one row — so non-list YAML still produces a sensible CSV.

What happens to a nested object or list value inside a YAML item?

That cell keeps the nested value intact as JSON.stringify() text rather than flattening or discarding it — the exact same rule JSON to CSV uses.

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Conversion runs entirely in your browser — nothing you paste or upload here is sent to any server.