JWT explained: how to decode tokens safely
Learn JSON Web Token structure, common claims, and why decoding is not the same as verification.
2026-06-01 · 6 min read
Original tutorials and reference articles for developers and automation engineers. Each guide links to related Flashman tools you can use immediately in your browser.
Learn JSON Web Token structure, common claims, and why decoding is not the same as verification.
2026-06-01 · 6 min read
How to pretty-print, minify, and validate JSON for APIs, configs, and logs—without leaking data.
2026-06-01 · 5 min read
What Base64 is for, when to use it, and common pitfalls with Unicode and padding.
2026-05-28 · 4 min read
Compare readability, tooling, and trade-offs for configuration and APIs.
2026-05-28 · 5 min read
Understand five-field cron syntax and avoid timezone surprises in production.
2026-05-25 · 5 min read
Percent-encoding rules for query strings, paths, and plus signs in form data.
2026-05-25 · 4 min read
How in-browser processing reduces leak risk for tokens, configs, and customer data.
2026-05-20 · 4 min read
Bridge JSON configuration and MATLAB matrices or structs for automation and calibration.
2026-05-20 · 6 min read
What SHA-256 and SHA-512 do, when to use them, and what hashing is not.
2026-05-18 · 4 min read
How to prototype regular expressions safely before shipping validation logic.
2026-05-18 · 5 min read