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errProof Alternatives

errProof is described as 'The website has a lot of useful and unique tools' and is a Calculator in the online services category. There are more than 50 alternatives to errProof, not only websites but also apps for a variety of platforms, including Windows, Mac, Linux and Android. The best alternative is SpeedCrunch, which is both free and Open Source. Other great sites and apps similar to errProof are Qalculate!, Wolfram Alpha, Pastebin.com and Write.as.

errProof alternatives are mainly Calculators but may also be Pastebin Services or Code Editors. Filter by these if you want a narrower list of alternatives or looking for a specific functionality of errProof.
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The website has a lot of useful and unique tools.

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  1. SpeedCrunch icon

    SpeedCrunch

    • Mac
    • Windows
    • Linux
    • PortableApps.com
    114 alternatives to SpeedCrunch 

    SpeedCrunch is a free, fast, high precision open source algebraic calculator with an intuitive interface and many features, such as variables, syntax highlighting, functions, persistent input history & more.

     Suggest and vote on features
    Features
    1.  PortableSpeedCrunch can be used from a USB stick or similar with no prior installation.
    2.  Syntax HighlightingSpeedCrunch supports syntax highlighting for various programming and markup languages.
    3.  Live PreviewInstantly see what your files and documents look like as you create them.
    4.  Support for ThemesYou can use themes and templates to change the look and feel of SpeedCrunch.
    on kde
    on mac osx
  2. Qalculate! icon

    Qalculate!

    • Mac
    • Windows
    • Linux
    105 alternatives to 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, as well as useful tools for everyday needs (such as currency conversion and percent calculation).

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    Features
    1.  Currency ConversionQalculate! lets you convert different currencies based on the latest exchange rates.
    2.  PortableQalculate! can be used from a USB stick or similar with no prior installation.
    Main window
    History


  3. Wolfram Alpha icon

    Wolfram Alpha

    • Online
    • Android
    • iPhone
    • Windows Phone
    • iPad
    • Kindle Fire
    56 alternatives to Wolfram Alpha 

    Wolfram Alpha is a "Computational Knowledge Engine" - different from a search engine, it answers factual queries directly by computing the answer from structured data, rather than providing a list of documents or web pages that might contain the answer.

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    Features
    Screenshot
  4. Pastebin.com icon

    Pastebin.com

    • Windows
    • Online
    • Google Chrome
    123 alternatives to 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 idea behind the site is to make it more convenient for people to share large amounts of text online.

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    Features
    Screenshot
  5. Write.as icon

    Write.as

    • Mac
    • Windows
    • Linux
    • Android
    • iPhone
    • Chrome OS
    • Android Tablet
    • iPad
    • Google Chrome
    • Kindle Fire
    107 alternatives to 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 publish a full blog.

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    Features
    1.  Privacy focusedWrite.as is considered a privacy friendly alternative.
    2.  LightweightWrite.as consumes less device resources compared to similar apps.
    3.  Support for ActivityPubWrite.as support ActivityPub, a open and decentralized social network protocol.
    4.  Support for MarkDownWrite.as supports MarkDown for document formatting.
    Screenshot
    Screenshot


  6. Replit icon

    Replit

    • Online
    • iPhone
    • Android
    48 alternatives to Replit 

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

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    Features
    1.  Real time collaborationMultiple users can work together in Replit simultaneously.
    2.  Privacy focusedReplit is considered a privacy friendly alternative.
    3.  Command line interfaceReplit either have CLI support or is a CLI-only app.
    4.  Dark ModeReplit supports dark mode for comfortable usage in low light conditions.
    5.  Code FormattingReplit supports code formatting for multiple languages and code styles.
    Screenshot
  7. Numi icon

    Numi

    111 alternatives to Numi 

    Numi is a handy calculator app for macOS. It allows to describe tasks the natural way and instantly get an accurate answer. For example, $20 in euro - 5% discount or today + 2 weeks. Numi is not limited to simple calculations, it can solve expressions of any complexity, with...

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    Features
    Screenshot
    Screenshot
  8. fxSolver icon

    fxSolver

    117 alternatives to fxSolver 

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

    Solver page
  9. Soulver icon

    Soulver

    104 alternatives to 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 with a traditional calculator, and a more lightweight tool for quick calculations than a spreadsheet.

     Suggest and vote on features
    Features
    1.  Works OfflineSoulver can be used without the need to connect to the internet.
    2.  Currency ConversionSoulver lets you convert different currencies based on the latest exchange rates.
    Screenshot
    Screenshot
  10. Windows Calculator icon

    Windows Calculator

    114 alternatives to Windows Calculator 

    A simple yet powerful calculator that includes standard, scientific, and programmer modes, as well as a unit converter. It's the perfect tool to add up a bill, convert measurements in a recipe or other project, or complete complex math, algebra, or geometry problems.

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    Features
    Screenshot
Showing 10 of 95 alternatives
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