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JSON Studio
Format, validate, minify and compare JSON in a focused local workspace.
{ "hello": "world" }jsonformatter
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API Playground
Build, send and inspect HTTP requests without leaving the browser.
GET /api/users → 200apihttp
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Regex Lab
Build, test and understand regular expressions with immediate feedback.
/^[a-z0-9_-]+$/giregextext
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JWT Inspector
Decode JWT structure, inspect claims and check token timing without transmitting sensitive values.
HEADER · PAYLOAD · SIGNATUREjwttoken