errProof

The website has a lot of useful and unique tools.

17 Alternatives To errProof

Converters360

The domain name Converters360.com is for sale. Call BuyDomains at 844-896-7299 to get a price quote and get your business online today!

Faker

Faker is a PHP library that generates fake data for you

Getcalc

getcalc.com - online calculators, formulas & work with steps (step by step calculation) for expressions, statistics, probability, finance, health, geometry, general purpose & engineering calculations along with basic & scientific calculators.
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Gnome calculator

Calculator for the GNOME Desktop Environment, formerly known as gcalc (and gcalctool CLI).
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Google

Google Search, also referred to as Google Web Search or simply Google, is a web search engine developed by Google. It is the most used search engine on the World Wide Web

Graph

Graph is an open source application used to draw mathematical graphs in a coordinate system.
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Insect

High precision scientific calculator with full support for physical units.

Jim

An overview of Jim capabilities
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Random Number Generator

Randomly generate integers or floating point numbers within a given range and specified discrete or continuous statistical probability distribution.

RealCalc Scientific Calculator

RealCalc Scientific Calculator

Selector

Need to select between a bunch of people? Selector will decide for you!

Sicyon calculator

Sicyon is a freeware sci/eng all-in-one software tool - expression calculator, constant database, unit converter, solver
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SpeedCrunch

SpeedCrunch. SpeedCrunch is a high-precision scientific calculator featuring a fast, keyboard-driven user interface. It is free and open-source software, licensed under the GPL. Download Documentation Donate .

The Hat

Handy, free random name picker and list randomizer for Windows.

WolframAlpha

WolframAlpha brings expert-level knowledge and capabilities to the broadest possible range of people—spanning all professions and education levels.

fxSolver

fxSolver is an free online math solver, equation library, graphing calculator and science/engineering problem helper. To get started, add some formulas, fill in any input variables and press “Solve.”