errProof Alternatives

Wolfram Alpha

Wolfram Alpha is a "Computational Knowledge Engine" - different from a search engine, it answers factual queries directly by computing the answer from...

Features:

• Built-in search engine
• Equation solving
• Math-solver
• Search engine

SpeedCrunch

SpeedCrunch is a free, fast, high precision open source algebraic calculator with an intuitive interface and a extensive list of features, including: Unlimited...

Features:

• Input history
• Calculators
• Functions
• Inline editing
• Live Preview
• Multiple languages
• Portable
• Syntax Highlighting
• Support for Themes
• Variables

Pastebin.com

The website is mainly used by programmers to store pieces of sources code or configuration information, but anyone is more than welcome to paste any type of text. The...

Write.as

Write.as lets you write and publish text instantly. Write a note for yourself to read later. Create a standalone article you can quickly broadcast on social media — or...

Features:

• Anonymity
• Privacy focused
• Support for ActivityPub
• Blogging
• Distraction free writing
• Frictionless publishing
• Lightweight
• Permission system
• Simple text editor
• Tags Support
• Web-Based
• Anonymous Secure Filesharing
• Journal
• MarkDown support
• Medium Integration
• Notetaking
• Social network
• Tumblr integration
• Twitter integration

Qalculate!

Qalculate! is a multi-purpose cross-platform desktop calculator. It is simple to use but provides power and versatility normally reserved for complicated math packages...

Features:

• Currency Conversion
• Periodic table
• Unit converter
• Algebra
• Calculators
• Equation solving
• Exchange rates
• Fractions
• Persistent History
• Variables

fxSolver

Online math solver, equation editor and database, graphing calculator and science/engineering problem helper.

Features:

• Formula Builder
• Equation editor
• Equation solving
• Built-in editor
• Calculators
• Database
• Editable calculations
• Education
• Engineering calculator
• Graphs
• Library
• Math-solver
• Shared links

Repl.it

Repl.it is a complete, collaborative cloud development environment in the browser featuring everything from linters and debuggers to third-party packages, hosting and...

Features:

• Code completion
• IDE
• Run code
• Running code
• Cloud IDE
• Code formatting
• Coding
• Interpreter
• Lint support
• Python
• Real time collaboration
• Ruby
• Terminal emulator

Calculator

Calculator provides simple and advanced mathematical functions in a beautifully designed app.

Ghostbin

Ghostbin is a paste service, and I’m going to skip explaining precisely what that is—it’s fairly obvious. The real interesting questions are “why did you build it?” and...

Features:

• Code Sharing
• MarkDown support
• Online Sharing
• Pastebin

Soulver

Soulver is a smart notepad with a built-in calculator. It gives instant answers to any calculations it finds in your text. It's a better way to work stuff out than...

Features:

• Calculators
• Currency Conversion
• Editable calculations
• Natural Language Processing
• Works Offline
• Side-by-Side View