YAML ⇄ JSON Converter
Paste YAML to get clean JSON — or JSON to get YAML. Instant validation with precise error messages for malformed input.
100% client-side Free forever No sign-up
Runs 100% in your browser — nothing is ever uploaded.
Frequently asked questions
Is my data uploaded anywhere?
No. Every DataForge tool runs entirely in your browser. Text and files are processed locally and never sent over the network.
Are the conversions accurate?
Yes — we use the same battle-tested libraries developers use in production (native Web Crypto for hashes, js-yaml for YAML), so output matches what your toolchain produces.
Is there a size limit?
No hard limit. Processing happens on your machine, so even large documents convert in milliseconds.