Filuni

Data Format Converter

Convert data between CSV, JSON, YAML and XML.

Private & SecureRuns in your browser — nothing is uploaded
Easy to UseJust paste or type — instant results
Free ForeverUnlimited use, no sign-up
Fast & ReliableAdvanced tech, fast and stable

Config and data come in CSV, JSON, YAML and XML, and you rarely get to choose which one a tool hands you. Paste data in one format and get it back in another, reshaped in your browser so you can move it between systems that each expect their own.

JSONCSVYAMLXML
CSV ↔ JSON ↔ YAML ↔ XML

How to use: Data Format Converter

  1. 1Enter inputPaste or type your source data (JSON, YAML, XML or CSV).
  2. 2Set optionsChoose the source format and the target output format.
  3. 3ProcessClick Convert to generate the structured data.
  4. 4Get resultCopy or download the converted result.

Common use cases

Feed a different toolTurn a JSON export into the CSV a spreadsheet wants, or the YAML a config file needs.
Read an awkward formatConvert dense XML or minified JSON into something laid out and readable.
Migrate configMove settings from one format to another when you switch frameworks or tools.
Prototype quicklyMock up data in the format that is easiest to type, then convert it to what your code reads.

Good to know

Not every format maps one-to-oneJSON has no comments, CSV has no nesting, and XML separates attributes from elements. A round trip can quietly drop things a format cannot express.
CSV is flatA table of rows and columns cannot hold nested objects, so deep JSON gets flattened or stringified on the way to CSV. Expect to tidy it.
YAML cares about indentationSpaces define structure in YAML and tabs break it. If a conversion to YAML looks off, check the indentation first.
Check after a round tripConverting A to B and back is not guaranteed to be identical. Glance over the result rather than trusting it blindly.

Frequently Asked Questions