YAML to JSON
Convert YAML config files into JSON for use in JavaScript applications, APIs, or anywhere JSON is the expected format. Type inference ensures numbers and booleans are preserved correctly.
YAML to JSON Converter
Reads your YAML document and produces compact, properly typed JSON. Booleans, numbers and null values are detected and written correctly, not left as strings.
Input YAML
210 bytes · 15 lines
Output JSON
Converted324 bytes · 23 lines
All Directions, One Tool
Switch between any combination of JSON, CSV, XML, YAML, TOML, TSV and Properties without jumping between different tools or tabs.
Fine-Tuned Options
Control delimiters, headers, null handling, XML tag names and indentation so the output matches exactly what your pipeline expects.
Instant and Private
Every conversion runs directly in your browser using native JS. Nothing is uploaded, logged or sent anywhere. Paste, convert, done.
How to Convert Your Data
Pick Your Formats
Choose the source format from the left dropdown and the target format from the right one. The tool automatically shows only valid conversion pairs.
Paste Your Input
Drop your data into the editor or click Load Sample to start with a working example. The format is detected automatically from your selection.
Tweak the Options
Open the Options panel to adjust things like the CSV delimiter, whether to include headers, the XML root tag name or the indentation width.
Copy or Download
Grab the result with one click or download it as a file with the correct extension. You can also swap the output back into the input to chain conversions.
Who Uses This
Backend Developers
Turn database query results into JSON for your API, convert config files between formats, or wrangle data for a migration script.
Data Analysts
Get CSV exports into JSON for processing, or flatten nested JSON from an API into a spreadsheet-ready format without writing a single line of code.
DevOps Engineers
Convert YAML configs for Kubernetes, Docker Compose or Ansible into TOML or JSON when your toolchain demands a different format.
Java Developers
Go between JSON and .properties files for Spring Boot or Android projects, with dot-notation keys generated and parsed correctly.
Technical Writers
Turn structured data into readable formats for documentation, or clean up messy exports from content management systems before publishing.
Students and Learners
A good way to understand how different data formats relate to each other. Paste valid JSON and see exactly what the same data looks like as YAML or TOML.
Why Use Endless Forge
Most online converters handle one or two formats. This one covers all the combinations developers actually run into, with no ads in the way.
One converter for all the formats you actually work with
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Frequently Asked Questions
6 questions answered