What YAML features are supported?

Basic YAML with nested mappings, sequences, scalars (string, number, boolean, null), and quoted strings. Multi-line literals (|, >), anchors (&), and references (*) are not supported.

Is my data uploaded anywhere?

No. All conversion happens locally in your browser with no server round-trip.

How are YAML types inferred?

Unquoted scalars are inferred: 'true'/'false' → boolean, 'null'/'~' → null, digits → number, everything else → string. Use quotes to force string type for values like '3.14' or 'true'.

What indentation does JSON-to-YAML use?

2-space indentation, with sequences rendered in block style (- item). Flow style ([a, b]) is not used; this maximizes readability and diff-friendliness.

Can I convert Kubernetes manifests?

Yes, as long as they use only supported features. Multi-document YAML (--- separators) is not supported; convert each document separately.

Why does my YAML fail to parse?

Common causes: tabs for indentation (YAML requires spaces), missing space after colon, unsupported anchors/multi-line literals. Check the error message for the line number.

Convertisseur YAML

Convert between YAML and JSON online. Gratuit, privé et 100% côté client.

Mode

Entrée

Essayer un exemple:

Sortie

Local only

Historique récent

Aucun historique

Utilisation

Paste YAML or JSON into the input box.
Choose YAML to JSON or JSON to YAML mode.
Copiez ou téléchargez le résultat.

Tâches utilisant cet outil

Convertir CSV to YAML

Convertir tabular CSV data to YAML for structured configuration or documentation. Each row becomes a YAML list item with column headers as keys.

TÂCHE

Convertir JSON to YAML and back without losing data

Translate entre JSON et YAML pour config fichiers, preserving nested structures, tableaux, et scalar types across le round-trip.

TÂCHE

Convertir TOML configuration to JSON

Analyser a TOML config file (used by Rust, Python projects) into JSON for tooling that expects JSON input.

TÂCHE

Convertir XML to YAML

Convertir XML documents to YAML for more readable configuration files. YAML's indentation-based syntax is cleaner than XML's tags for human-authored data.

TÂCHE

Migrate configuration entre JSON et YAML

Convertir a JSON config to YAML (or back) with a formatted intermediate step, and know the type-coercion pitfalls before you commit the file.

TÂCHE

Utiliser YAML frontmatter pour document metadata

Frontmatter est YAML metadata at le haut de un Markdown fichier, delimited par ---. Commun en static site generators (Astro, Hugo, Jekyll) pour page metadata.

TÂCHE

Pipelines utilisant cet outil

Comparer deux configs YAML via JSON

PIPELINE

Convertir YAML en JSON

PIPELINE

YAML en JSON puis CSV

PIPELINE

Generer des interfaces TypeScript depuis YAML

PIPELINE

Valider et formater YAML

PIPELINE

Questions fréquentes

What YAML features are supported?: Basic YAML with nested mappings, sequences, scalars (string, number, boolean, null), and quoted strings. Multi-line literals (|, >), anchors (&), and references (*) are not supported.
Mes données sont-elles téléversées quelque part ?: Non. Toute la conversion s'effectue localement dans votre navigateur, sans aller-retour serveur.
How are YAML types inferred?: Unquoted scalars are inferred: 'true'/'false' → boolean, 'null'/'~' → null, digits → number, everything else → string. Use quotes to force string type for values like '3.14' or 'true'.
What indentation does JSON-to-YAML use?: 2-space indentation, with sequences rendered in block style (- item). Flow style ([a, b]) is not used; this maximizes readability and diff-friendliness.
Can I convert Kubernetes manifests?: Yes, as long as they use only supported features. Multi-document YAML (--- separators) is not supported; convert each document separately.
Why does my YAML fail to parse?: Common causes: tabs for indentation (YAML requires spaces), missing space after colon, unsupported anchors/multi-line literals. Check the error message for the line number.