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Browse the tool catalog | Page 116

Search and filter the online tool directory by task, format, and category, then open detailed pages with clear inputs, examples, and execution context. Page 116.

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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

Docs Pricing Terms of Service Privacy Policy Contact

Math & Numbers

Lever Mechanical Advantage Calculator

Calculate the mechanical advantage of a lever and its output force. MA = L_in / L_out, and by moment balance F_out = F_in · MA. MA > 1 saves force; MA < 1 saves distance.

Utilities

Lewis Structure & VSEPR Predictor

Predict the Lewis dot structure, valence electrons, central atom, lone pairs, and VSEPR geometry (linear / trigonal / tetrahedral / …) of a covalent molecule.

Health

Lean Body Mass Calculator (Boer / Hume / James)

Estimate your lean body mass (LBM) from sex, age, weight and height using three clinical formulas side by side, with derived body-fat percentage.

Generator

Live Countdown Banner Generator

Generate a self-contained, dependency-free HTML countdown banner for any page. Target date, timezone, theme, one-shot or weekly-recurring mode, live in-browser rendering.

Text Processing

Leetspeak Decoder & Detector

Decode leetspeak (1337) to plain text and score how plausibly leet an input is — for password-policy bypass screening, profanity-filter evasion, and log-noise filtering.

Astronomy

Light-Year and Astronomical Unit Converter

Convert between light-years (ly), parsecs (pc), astronomical units (AU), kilometers and meters using IAU-defined constants, with a parallax-angle → distance helper.

Math & Numbers

LED Series Resistor Calculator

Compute the current-limiting resistor for LEDs in series with power, nearest standard value and wattage rating

Text Processing

Leet Speak Converter

Convert text to and from leet speak (1337). Encode with Basic, Full, or Caps styles, or decode leet back to plain text.

Text Processing

Line Ending Converter

Convert text line endings between LF (Unix/macOS), CRLF (Windows), and CR (classic Mac). Normalizes mixed endings in one pass and reports the original breakdown.

Media

Convert Leica RAW to JPEG

Convert Leica RAW files to JPEG format. Automatically extracts image dimensions and metadata from the RAW file.

Media

Convert Leica RAW to PNG

Convert Leica RAW files to PNG format. Automatically extracts image dimensions and metadata from the RAW file.

Math & Numbers

Liter to Cubic Meter

Convert liters to cubic meters with configurable decimal precision