How I convert JSON, YAML, and TOML without changing the meaning

JSON, YAML, and TOML can represent similar configuration data, but they have different syntax and different traps.

The JSON/YAML/TOML converters tool is useful because it lets me check the result in a small, controlled place before I use it in a bigger workflow.

The simple idea

JSON, YAML, and TOML can represent similar configuration data, but they have different syntax and different traps.

The goal is not to click buttons quickly. The goal is to understand the input, produce the expected output, and notice anything that could be misleading.

Step 1: Validate the source format first

Validate the source format first.

Start with a small example if possible. Small examples make mistakes easier to see.

Step 2: Convert a small sample before converting a large config

Convert a small sample before converting a large config.

Step 3: Check strings, numbers, booleans, and null values after conversion

Check strings, numbers, booleans, and null values after conversion.

Step 4: Watch YAML indentation because it changes structure

Watch YAML indentation because it changes structure.

Step 5: Remember that comments may not survive every conversion

Remember that comments may not survive every conversion.

Step 6: Compare important keys before using the result

Compare important keys before using the result.

Step 7: Test the converted file with the application that will read it

Test the converted file with the application that will read it.

My checklist

Before I trust the result, I check:

• Validate the source format first.
• Convert a small sample before converting a large config.
• Check strings, numbers, booleans, and null values after conversion.
• Watch YAML indentation because it changes structure.
• Remember that comments may not survive every conversion.
• Compare important keys before using the result.
• Test the converted file with the application that will read it.

The tool handles the mechanical part. I still review the result before I publish it, send it, or use it in production.