SHA-256 explained simply
What SHA-256 does, how hashes work, collision resistance, and practical uses. Hash strings locally with a browser-based SHA-256 tool.
Developer guides
UUID Studio Blog
Tutorials on UUIDs, MongoDB, JSON, JWT, encoding, crypto, and API debugging. Every article links to free browser tools you can use immediately.
Latest articles
Convert MongoDB binary UUID to string: EJSON, shell, and drivers
Step-by-step ways to turn BSON Binary UUIDs into canonical strings using Extended JSON, mongosh, Node, Python, and aggregation.
HS256 vs RS256 for JWT signing
Compare HMAC HS256 and RSA RS256 for JWT signing: key distribution, performance, microservices, JWKS, and migration tips with examples.
Common UUID mistakes developers make
Avoid the most common UUID bugs: endianness, string compare, wrong version, using UUID as secret, index anti-patterns, and log encoding issues.
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