Config Converter
Free online config file converter, JSON/YAML/TOML conversion
Configuration Format Conversion
JSON, YAML, and TOML are three popular configuration formats. JSON is the most universal but has no comments and strict syntax. YAML is human-friendly but indentation-sensitive. TOML is simple and unambiguous. This tool converts between all three formats.
How to Convert Config Formats
Select the input format, paste your data, select the output format, and the tool converts instantly. The conversion preserves the full data structure including nested objects and arrays.
▶Which format should I use?
Use JSON for APIs and interop. Use YAML for Kubernetes, CI/CD, and human-edited configs. Use TOML for Rust projects and Python tools. Many projects support multiple formats.
▶Are there any data loss concerns?
JSON supports all data types cleanly. YAML has some type coercion gotchas (e.g., yes/no/true/false become booleans). TOML has explicit types. Round-tripping between formats may lose comments.