Security
Decode a JWT (header + payload) with syntax highlighting, diagnose standard claims, and verify the signature with HS*/RS*/PS*/ES*/EdDSA keys — plus a tampered-token forgery demo
jwt-inspector-verifierAstronomy
Numerically solve Kepler’s equation E − e·sin(E) = M for eccentric anomaly E, true anomaly ν, orbital radius and relative speed, with Newton/bisection/fixed-point methods, convergence history and an SVG orbit diagram
kepler-orbit-solverMath & Numbers
Convert kilometers per liter to miles per gallon with configurable decimal precision
kml-to-mpgMath & Numbers
Convert liters per 100 kilometers to miles per gallon with configurable decimal precision
l-per-100km-to-mpgMedia
Convert Leica RAW files to JPEG format. Automatically extracts image dimensions and metadata from the RAW file.
leica-raw-to-jpgMedia
Convert Leica RAW files to PNG format. Automatically extracts image dimensions and metadata from the RAW file.
leica-raw-to-pngMath & Numbers
Convert kilopascals to standard atmospheres with configurable decimal precision
kpa-to-atmMath & Numbers
Convert kilopascals to bar with configurable decimal precision
kpa-to-barMath & Numbers
Convert kilopascals to millimeters of mercury with configurable decimal precision
kpa-to-mmhgMath & Numbers
Convert kilopascals to pounds per square inch with configurable decimal precision
kpa-to-psiMath & Numbers
Convert kilowatts to horsepower with configurable decimal precision
kw-to-hpMath & Numbers
Convert kilowatts to megawatts with configurable decimal precision
kw-to-mw