# Sidebar Calc: Calculator in the Browser Side Panel

> A browser sidepanel calculator. Lives next to your work, CRM, spreadsheet, doc, never on top of it. Persistent history, scientific mode, keyboard-first.

- Tagline: Math, one keystroke away.
- Platforms: Chrome, Opera
- Price: free to install
- Made by: 2kit (https://2kit.app)
- Page: https://2kit.app/products/sidebar-calc
- Add to Chrome: https://calc.2kit.app/
- View on GitHub: https://github.com/lenadweb/sidebar-calc

## Features

### Sidepanel-native

Built on Chrome’s native sidepanel. Doesn’t cover the page, doesn’t pop a window, never loses state.

### Two modes

Simple for quick math, scientific for trig, logs and parentheses. Switch with one keystroke.

### Keyboard-first

Numpad, arrow-key history scrubbing, copy result, theme toggle. Mouse never required.

## FAQ

### What is Sidebar Calc?

Sidebar Calc is a calculator extension that opens in the browser’s side panel, next to the page you are working on. You can do quick math in a spreadsheet, CRM or doc without switching tabs or covering the page.

### How do I open Sidebar Calc with the keyboard?

In Chrome, press Ctrl+Shift+L, or Cmd+Shift+L on a Mac. You can type the whole expression, press Enter for the result and copy it with Ctrl+C or Cmd+C.

### Does Sidebar Calc have a scientific mode?

Yes. Scientific mode adds sin, cos and tan with their inverses, log and ln, powers and roots, factorial, percent, π and e, with a degrees and radians switch.

### Which browsers does Sidebar Calc support?

Sidebar Calc works in Chrome 114 and later through Chrome’s native side panel, and in Opera through its sidebar. It is free and open source.

## Support

Email support@2kit.app.