Config Tools

Compare two environments

Compare parsed values across YAML, TOML, JSON or environment files. Differences in quoting or key order are ignored; changed, added and removed settings are listed.

• Config Diff — Compare configuration values and types across formats.
• .env to JSON — Convert .env files to JSON, YAML, Docker or Kubernetes.
• YAML Validator — Validate YAML and catch the Norway problem and other gotchas.

Fix a broken manifest

Validate the YAML to find the first syntax error with its line and column, then format it to make indentation problems visible. Multi-document files are checked document by document.

• YAML Validator — Validate YAML and catch the Norway problem and other gotchas.
• YAML Formatter — Re-indent and tidy YAML without losing comments.
• YAML to JSON — Convert YAML (with anchors and multiple docs) to JSON.

Convert configuration files

Convert between YAML, TOML and JSON. Check how dates, booleans and null values are represented in the destination before replacing a working configuration.

• YAML to JSON — Convert YAML (with anchors and multiple docs) to JSON.
• JSON to YAML — Convert JSON to clean, correctly quoted YAML.
• TOML to JSON — Convert TOML config files like Cargo.toml to JSON.
• JSON to TOML — Convert JSON to TOML tables and arrays of tables.

Quote values that must stay strings

YAML 1.1 parsers read some unquoted words such as yes, no and on as booleans, and values like 0644 as numbers. Quote country codes, versions and file modes when they must stay strings.

TOML dates have no JSON equivalent

JSON has no date type, so TOML date-times become strings. Keep the original file when a program depends on the native type.