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Browse the tool catalog | Page 216

Search and filter the online tool directory by task, format, and category, then open detailed pages with clear inputs, examples, and execution context. Page 216.

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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 & Encoding167

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

Developer & Web163

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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Health

Blood Alcohol Content (BAC) Estimator

Estimate your BAC from sex, weight, drinks and time using the Widmark formula. Returns g/dL and ‰, predicts sober time, and flags the impairment tier and legal driving limits.

Media

Audio Sibilance Map

Map harsh S, T, and SH regions so de-essing can target the right moments instead of dulling the whole voice.

Math & Numbers

Base-N Radix Converter

Convert numbers and text between any radix from 2 to 36, with custom alphabets and presets for Base58, Base62, and Crockford Base32.

Media

Batch Rewrap

Batch remux media files with stream copy.

Health

Biorhythm Curve Plotter

Plot the classic 23-day physical, 28-day emotional, and 33-day intellectual biorhythm sine curves around any target date. See today's cycle states, mark zero-crossing "critical days", and read a daily value table with a combined total — enter your date of birth and a target date.

Format Conversion

Base64URL Encoder/Decoder

Encode and decode Base64URL (URL-safe Base64 variant used by JWT/JWS/JWE), with conversions between standard and URL-safe Base64

Health

Barbell Plate Load Calculator

Calculate a symmetric per-side plate setup for a target barbell weight, with kg/lb support and custom inventory

Math & Numbers

Bar to KPa

Convert bar to kilopascals with configurable decimal precision

Math & Numbers

Bar to PSI

Convert bar to pounds per square inch with configurable decimal precision

Media

AVI to MP4 Converter

Convert AVI video files to MP4 format

Media

3D Spectrum Analyzer

Audio spectrum analyzer with 3D isometric visualization

Media

Audio Visualizer Player

Play audio files with real-time frequency visualization