RedCrab Calculator

Math Software with Fullscreen Editor and Free Formula Placement

Overview

RedCrab Calculator is a mathematics software with an innovative fullscreen editor. The software enables the free placement of algebraic formulas on the worksheet in natural mathematical notation.

Highlights:

Natural mathematical notation for formulas
Free placement of formulas on the worksheet
More than 450 mathematical functions
Results can be displayed in different numeric formats and in diagrams
Images and texts can be inserted for documentation
RedCrab worksheets are also suitable for presentations

RedcrabX — A Fresh Start

RedcrabX is not just an update for the RedCrab Calculator. 8.x — it is a completely new application built from the ground up. Features that were rarely used have been intentionally removed to keep the interface clean and focused.

In their place, a brand-new interface has been designed for a smoother workflow, and the range of mathematical functions has been significantly expanded — with particular emphasis on domain-specific areas such as electrical engineering, geometry, and physics. This expansion is ongoing, with more functions being added continuously.

If you are looking for the classic RedCrab 8.x and its features, documentation and resources for the older version remain available online.

Go to Redcrab X

RedCrab Features

RedCrab Calculator offers an extensive set of features for mathematical calculations and documentation.

Fullscreen Editor

User-friendly editor with natural mathematical notation for complex formulas

Free Placement

Formulas can be freely positioned on the worksheet – not limited to cells

Visualization

Results can be displayed as numbers, tables or diagrams

Documentation

Integration of images and texts for complete documentation of calculations

Presentation

Worksheets with natural notation are also suitable for presentations

450+ Functions

Extensive mathematical function library for all important operations

Portability & System Requirements

Portable and Installation-Free

Easy Deployment:

The RedCrab Calculator is portable and can be copied and started without installation. It also runs from external storage devices (e.g. USB flash drive). Program settings are stored in the start directory.

System Requirements

Version 8.x to RedcrabX

Microsoft Windows W7, W8.x, W10, W11

Older Versions

RedCrab version 8.3

Download version 8.3

RedCrab version 4.13 and older also run on Linux with the Wine runtime system.