https://github.com/bornova/numara-calculator

Simple notepad calculator built on Electron, powered by Math.js
https://github.com/bornova/numara-calculator

calculator electron mathjs notepad

Last synced: 25 days ago
JSON representation

Simple notepad calculator built on Electron, powered by Math.js

• Host: GitHub
• URL: https://github.com/bornova/numara-calculator
• Owner: bornova
• License: mit
• Created: 2019-10-22T20:22:38.000Z (over 6 years ago)
• Default Branch: master
• Last Pushed: 2026-03-27T06:38:39.000Z (about 1 month ago)
• Last Synced: 2026-03-27T09:14:17.509Z (about 1 month ago)
• Topics: calculator, electron, mathjs, notepad
• Language: JavaScript
• Homepage: https://numara.io
• Size: 54 MB
• Stars: 248
• Watchers: 4
• Forks: 30
• Open Issues: 4
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

          


  

  


  

  [![GitHub Release](https://img.shields.io/github/v/release/bornova/numara-calculator?display_name=tag&style=for-the-badge)](https://github.com/bornova/numara-calculator/releases/latest)



##



  
A sleek, minimal-but-powerful notepad calculator which evaluates expressions as you type.  It combines the flexibility of a text editor with the power of a scientific calculator.

  

  Available for:

  

  [![Windows](https://img.shields.io/badge/Windows-0078D6?style=for-the-badge&logo=windows&logoColor=white)![macOS](https://img.shields.io/badge/mac%20os-000000?style=for-the-badge&logo=macos&logoColor=F0F0F0)![Linux](https://img.shields.io/badge/Linux-FCC624?style=for-the-badge&logo=linux&logoColor=black)](https://github.com/bornova/numara-calculator/releases/latest)

  

  and on the web at https://numara.io





  

  





  

  

  

  



##



  
Why Numara?





  Traditional calculators slow you down with buttons, modes, and rigid workflows. Numara takes a different approach: it treats math like writing. By combining a simple text-entry interface with real-time evaluation, Numara offers a faster, more natural way to calculate.

  

  Whether you're jotting down quick arithmetic, testing formulas, or mixing notes with numbers, Numara keeps you in the flow.



📝 **Notepad-Style Interface**

- Write expressions as plain text, minimal interface with no buttons or rigid UI to slow you down.

- Mix notes and calculations freely, perfect for jotting down ideas alongside math.

- Change a value and the result updates instantly.

⚡ **Real-Time Evaluation**

- Results appear as you type, no equals button needed.

- Automatically recalculates when expressions change.

- Enables quick experimentation and iterative problem-solving.

🔢 **Advanced Math with [Math.js](https://github.com/josdejong/mathjs), giving you a wide range of capabilities:**

- Scientific functions (trig, logs, exponentials, statistics, etc.).

- Unit handling and conversions (5 cm + 2 in, 1 hour to minutes, etc.).

- Complex and symbolic expressions including percentage operations (10% of 20, 40 + 5%, etc)

- Currency handling using symbols like $, €, £.

- Built-in constants and rich numerical operations.

- And much more...

📈 **Function Plotting**

- Plot mathematical functions directly within Numara.

- Useful for visualizing equations, exploring parameter changes, or checking how expressions behave.

🔓 **Open Source**

- MIT-licensed.

- Unlimited and free to use.

##



  

  Visit the [Wiki page](https://github.com/bornova/numara-calculator/wiki) to learn more about the features.