All Tools (175)

Solve PV = nRT for pressure, volume, moles, or temperature.

Resize images by pixels and download them privately.

Calculate series AC impedance, reactance, phase angle, and resonance.

Solve impulse with J = FΔt = Δp, or find average force or time.

Calculate energy stored in an inductor from inductance and current.

Combine inductors in series or parallel and calculate reactance.

Inspect IPv4 networks and CIDR ranges without sending addresses to an API.

Parse and create ISO 8601 date/time values.

Validate JSON, pretty-print it, minify it, and inspect JSON paths.

Convert between JSON arrays and JSON Lines / NDJSON.

Navigate JSON with standard slash-separated JSON Pointers.

Infer TypeScript types from JSON sample data.

Inspect JWT header, payload, and time claims locally.

Solve one-dimensional constant-acceleration motion problems.

Solve kinetic energy, mass, or speed with unit conversion.

Solve phase-change energy with Q = mL.

Calculate LC resonant frequency and reactance from inductance and capacitance.

Find the series resistor and power dissipation for an LED circuit.

Convert common length and distance units.

Sort and clean one-item-per-line text without uploading it.

Solve one-variable linear equations and two-variable systems.

Shuffle lists or pick random entries locally in your browser.

Estimate monthly payment, total cost, and interest for a fixed-payment loan.

Turn delimited text into a Markdown table you can copy into docs.