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Free JSON formatter, Base64, URL, and UUID tools online.
Developer utilities are for quick checks. Validate JSON syntax before formatting, encode URL components correctly, and generate identifiers locally. Do not paste production secrets into any public tool.
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Developer utilities are for quick checks. Validate JSON syntax before formatting, encode URL components correctly, and generate identifiers locally. Do not paste production secrets into any public tool.
JSON formatter beautifies valid JSON; JSON validator reports whether parsing succeeds. Valid JSON can still fail an API schema, so treat validation as a first filter. JSON minifier removes formatting whitespace after a successful parse.
Base64 and URL encode/decode helpers work on text in the browser. UUID generator uses the browser crypto API when available. HTML and CSS formatters improve readability for inspection—they are not sanitizers or production compilers. Prefer offline tools for credentials and private keys.
