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Lossless Universal Data Transformer

Dev Core

Convert between JSON, YAML, XML, and TOML with validation, auto-detect, and pretty-printing — js-yaml, fast-xml-parser, and TOML, 100% in-browser.

100% client-side

js-yaml · fast-xml-parser · @iarna/toml

Convert between JSON, YAML, XML, and TOML with validation and pretty-printing — all parsing happens locally in your browser.

FromToJSON → YAML(auto-detected)

Input

Output

JSON indent

YAML indent