Simple and Intelligent Standard Calculator Using HTML


This is a Simple Web App called Simple and Intelligent Standard Calculator. This HTML source code was developed using HTML, CSS, and Javascript (jQuery). I know that everyone knows how the calculator works and I'll just explain the other features of this simple HTML Project. The calculator app is able to save the calculation history and this feature uses the web browser's local storage which is means that there are no database servers required to run this project. I am sharing the source code to help others especially those who are students that about to start learning to develop an application. You can also simply integrate this feature into your website that needs a calculator feature. The calculator panel is located at the bottom right of the browser's window like the common chatbox panel of a website.

Allowed Keyboard keys

  • Number keys from 0-9
  • Enter Key
  • Dot (.) Key for the decimal point.


  • Text fiend for calculation
  • Buttons
    • Numbers 0-9
    • Calculation Operators ( +, -, /, and *)
    • History Panel
    • Error Trapping Popup

How to Run

  1. Download the provided source code zip file (download button is located below)
  2. Extract the source code zip file
  3. Locate the index.html file from the extracted source code folder.
  4. Open the HTML file in a browser.


That's it! I hope this Simple and Intelligent Standard Calculator Web App will help you.

Feel free to contact me @ [email protected]

Note: Due to the size or complexity of this submission, the author has submitted it as a .zip file to shorten your download time. After downloading it, you will need a program like Winzip to decompress it.

Virus note: All files are scanned once-a-day by for viruses, but new viruses come out every day, so no prevention program can catch 100% of them.


1. Re-scan downloaded files using your personal virus checker before using it.
2. NEVER, EVER run compiled files (.exe's, .ocx's, .dll's etc.)--only run source code.


Submitted byZoey (not verified)on Mon, 01/01/2018 - 18:24

Best post. thanks for sharing.
Submitted bySouravsonu111 (not verified)on Tue, 01/09/2018 - 17:06

Thanks for help me alot.
Submitted byAnonymous (not verified)on Sat, 05/28/2022 - 23:23

Wonderful work! This is the type of information that should be shared around the internet. Shame on the search engines for not positioning this post higher! Come on over and visit my website . Thanks =) chatrandom
Submitted byjasonroy (not verified)on Sat, 05/28/2022 - 23:25

pleasant offer presently we should attempt this number cruncher, read it

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