JSON Tools
Work with JSON confidently — live validation, pretty-printing, minification, and YAML conversion with line-level error reporting.
5 tools · runs in your browser
JSON Formatter
Free online JSON formatter and validator. Beautify, minify, and validate JSON instantly in your browser with line-level errors.
JSON Validator
Validate JSON online with line-level syntax errors. Free, instant, and private — runs entirely in your browser.
JSON Minifier
Minify and compress JSON to a single line in your browser. Free, fast, and private.
JSON to YAML
Convert JSON to YAML online in your browser. Free, fast, and private — no server upload.
YAML to JSON
Convert YAML configs to formatted JSON in your browser. Free, private, and instant.
Learn the concepts
Embed on your site
Add any cluster tool to your blog or docs with a lightweight iframe. Copy the snippet below.
<iframe src="https://tools.weblexia.in/embed/json-formatter?h=520" width="640" height="520" frameborder="0" loading="lazy" title="Weblexia json-formatter"></iframe>