What Is Key-Value to JSON Conversion?
Key-value to JSON conversion parses lines of key: value pairs into structured JSON objects. This is essential for migrating flat configs, environment variables, and simple data files into API-ready JSON format.
This conversion is useful for:
- Config Migration: Converting flat config files to structured JSON.
- Environment Variables: Parsing env exports into JSON objects.
- Data Import: Loading key-value data into JSON-based tools.
How to Convert Key-Value to JSON Online
- Paste key:value pairs: Enter one pair per line.
- Click Convert: Parse into structured JSON with dot-notation nesting.
- Copy JSON: Use the output in your application or API.
Frequently Asked Questions
Does it support dot-notation nesting?
Yes. Keys like settings.theme are automatically nested into objects.
What value types are supported?
Strings, numbers (integers and floats), booleans (true/false), and null are all detected automatically.
Is this tool safe?
Yes. Processing is 100% client-side.
Related Tools
- JSON to Key-Value — Reverse conversion
- .env to JSON — Convert .env files to JSON