errProof Alternatives

An overview of Jim capabilities

A random string generator that can take numbers, letters, symbols, Chinese characters and arbitrary...

All-in-one embedded analytics platform purpose-built for SaaS providers living in the AWS ecosystem

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RANDOM.ORG offers true random numbers to anyone on the Internet.

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

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 .

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.

RealCalc Scientific Calculator

High precision scientific calculator with full support for physical units.

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

RandomPicker.com helps you draw winners for your contests, giveaways or raffles.

Faker is a PHP library that generates fake data for you

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

Wheel Decide is a free to use web-based spinner platform that allows the people create their own digital wheels system for prize giveaways, decision making, games and much more.