WhiteKit — 55 developer tools that run entirely in the browser. JSON, Base64, JWT, regex, hashes, subnets. No sign-up, no ads, nothing sent to a server.
whitekit-data — the reference datasets behind it, published separately. MIME types and HTTP status codes, reconciled against the IANA registries on every build. JSON + npm.
Both came out of the same problem: most online developer tools are either riddled with ads or quietly wrong about the data they serve.