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Browse the tool catalog | Page 4

Search and filter the online tool directory by task, format, and category, then open detailed pages with clear inputs, examples, and execution context. Page 4.

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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 & Color282

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

Text & Writing199

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

Conversion & Encoding164

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

Developer & Web158

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

Three-Phase Short-Circuit Current Calculator (IEC 60909)

Estimate the three-phase symmetric short-circuit current using the IEC 60909 far-from-generator method: I"_k = c·U_n/(√3·|Z|) and i_p = κ·√2·I"_k with κ = 1.02 + 0.98·e^(−3R/X). Source impedance is the series sum of transformer and line R/X.

Media

HDR AVIF to SDR PNG Tone Mapper

Decode PQ or HLG AVIF, convert BT.2020 to sRGB, and tone map highlights into a viewable SDR PNG.

Media

HEIC to JPG Converter

Decode HEIC photos to compatible JPEG with quality, chroma subsampling, and background controls.

Media

HEIC to PNG Converter

Decode HEIC photos to verified 24/32-bit or high-precision 48/64-bit PNG files.

Media

Image Bit Depth Inspector

Inspect real sample depth, stored pixel depth, channels, palette, alpha, color space, ICC, and HDR metadata.

Media

Image Bit Depth to PNG Converter

Convert images to exact monochrome, indexed, grayscale, RGB, or RGBA PNG bit depths with verified output.

Math & Numbers

Section Modulus Calculator

Calculate the elastic section modulus W = I/y_max and associated geometric properties. Supports rectangle, solid circle, hollow tube, and I-beam; computes I, distance c, area A, and radius of gyration r. Units in mm.

Math & Numbers

Slope Stability Calculator (Infinite Slope)

Calculate the infinite-slope factor of safety: FS = c'/(γ·z·cosβ·sinβ) + tanφ'/tanβ. Supports dry slopes and seepage parallel to the slope. Returns FS and a stable/marginal/unstable classification.

Media

SRT / VTT Subtitle Editor

Edit subtitle timing, shift cues, repair overlaps, calibrate CPS, wrap long lines, and export SRT, VTT, ASS, or TTML.

Math & Numbers

Shear Stress Calculator

Calculate the maximum shear stress τ_max = V·Q/(I·b) at the neutral axis of a beam section. Supports rectangle (1.5V/A), solid circle (4V/3A), hollow tube, and I-beam (exact V·Q_web/(I·tw)). Also returns the average shear stress V/A for comparison.

Math & Numbers

Simply Supported Beam Calculator

Calculate the maximum bending moment M_max, maximum shear force V_max and support reactions for a simply supported beam under a uniformly distributed load, a mid-span point load, or a point load at an arbitrary position. UDL: M_max = qL²/8; mid-span: M_max = PL/4; offset: M_max = P·a·b/L.

Math & Numbers

Gear Module Calculator

Calculate the gear module m. m = d/z = p/π. Solve the module from the pitch diameter d and tooth count z, or from the circular pitch p. Also returns the pitch diameter, circular pitch and addendum.