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Browse the tool catalog | Page 54

Search and filter the online tool directory by task, format, and category, then open detailed pages with clear inputs, examples, and execution context. Page 54.

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Math, Date & Finance586

Calculators, numerics, date logic, statistics, and finance tools

Images, Audio & Video564

Image, audio, and video processing, conversion, and optimization tools

Design & Color284

Color, layout, graphics, visual styling, and design helper tools

Text & Writing200

Writing, cleanup, formatting, extraction, and text analysis tools

Conversion & Encoding164

Format, file, archive, unit, and encoding conversion tools

Developer & Web161

Developer utilities, networking, web debugging, and automation helpers

Audio Encoding and Format Conversion Tools

Image Format Conversion and Animated Export Tools

JSON Interchange and Format Translation Tools

Color Space Conversion Tools for Web and Print

Text Case, Encoding, and Normalization Conversion Tools

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Math & Numbers

Thermal Comfort PMV-PPD (ISO 7730 / Fanger)

Compute the thermal comfort indices PMV (Predicted Mean Vote, −3 cold..+3 hot) and PPD (Predicted Percentage Dissatisfied, %) per ISO 7730 / ASHRAE 55, using the Fanger equations. Inputs: air temperature Ta, mean radiant temperature Tr, relative air velocity v_ar, relative humidity φ, metabolic rate M (met; 1 met = 58.2 W/m²), clothing insulation Icl (clo; 1 clo = 0.155 m²·K/W), and external work W (defaults to 0). The clothing surface temperature Tcl is solved iteratively. Returns a 7-level ASHRAE sensation label.

Geography

Tide and Lunar Distance Predictor

Estimate spring/neap tide forcing and lunar-distance amplification with a transparent offline planning model.

Math & Numbers

Three-Phase Power Calculator

Calculate active, reactive, and apparent power for a balanced three-phase system: S=√3·U·I, P=√3·U·I·cosφ, Q=√3·U·I·sinφ. Also returns the power-factor angle φ and verifies the power triangle.

Media

TIFF to 16-bit PNG Converter

Convert a selected TIFF page to verified 16-bit-per-channel grayscale, RGB, or RGBA PNG.

Math & Numbers

Transformer Impedance Transfer Calculator

Reflect an impedance through an ideal transformer: Z' = a²·Z, where a = N₁/N₂. Supports secondary→primary and primary→secondary directions; a can be given directly or derived from N₁/N₂. Also returns admittance Y and reflected admittance.

Math & Numbers

Transformer Turns Ratio Calculator

Ideal transformer ratio: a = N₁/N₂ = V₁/V₂ = I₂/I₁. Given turns, voltage, or current on either side, compute a and the corresponding voltage/current on the other side; verifies V₁·I₁ = V₂·I₂.

Math & Numbers

Unit Converter with Formula Display

Convert common physical, chemistry, cooking, medical, and information units with the formula and dimensional analysis visible.

Finance

Unit Price Calculator

Compare supermarket product prices by normalizing them to a common unit (per 100g, per liter, per piece, etc.). Enter products as 'name, price, quantity, unit' per line. Ranks from cheapest to most expensive per unit and shows savings vs the most expensive option.

Games

Trivia Quiz

Test your knowledge with a trivia quiz. Random questions from a built-in English bank across science, history, geography, and general topics. Pick 1 of 4; get your score and accuracy at the end.

Games

Tic-Tac-Toe

Classic 3×3 tic-tac-toe against a random AI, an unbeatable minimax AI, or a friend. Keeps score across rounds.

Math & Numbers

Torque Calculator (τ = rF sinθ)

Compute torque, force, or lever arm from τ = r·F·sin(θ), with the perpendicular force component shown

Geography

Tide Calculator

Estimate local tide height and upcoming high/low tides from a known reference high tide.