QCalc is evolving beyond a simple calculator into a modern productivity tool. Built with cutting-edge web technologies like Vue3 (Quasar v2), TypeScript, and Electron, this versatile calculator is being developed into an app that can be effectively utilized in real work, tasks, and learning scenarios. Additionally, it focuses on accessibility to ensure that users with disabilities can use it intuitively, while providing a useful user experience across both desktop and mobile environments through its simple yet sophisticated UI. 😊
The calculator alone appears when the window width is reduced.
- Standard calculator with advanced math functions
- Comprehensive unit converter supporting 15+ categories
- Currency converter with real-time exchange rates
- Programmer's calculator with binary operations
- Calculation history with search and annotation capabilities
- Customizable number formatting (3 or 4-digit grouping)
- Various keyboard shortcuts for rapid data entry
- Quick copy and paste (clicking or long-pressing the panel)
- Advanced mathematical operations (trigonometry, logarithms)
- Memory operations (MS, MR, M+, M-, M×, M÷)
- Bit operations (AND, OR, XOR, NOT, shifts)
- Comprehensive unit conversion system
- Adaptive layout utilizing side panels on larger screens
- Dark mode support to reduce eye strain
- Clean, intuitive interface with gesture support
- Haptic feedback for precise input
- Engineers: High-precision complex calculations
- Developers: Binary, octal, hexadecimal conversions
- Financial Analysts: Currency conversion and percentage calculations
- Scientists: Advanced math functions and unit conversions
- Students: Comprehensive calculation history for learning
Built with Vue 3, Quasar, and Electron, QCalc delivers native-level performance with modern web technology stability. It supports extensive keyboard shortcuts for efficient operation and includes features like always-on-top mode for multitasking.
| Shortcut | Function |
|---|---|
| 0-9. | Enter numbers and decimal |
| +, -, *, / | Basic arithmetic |
| Enter, = | Calculate result |
| Backspace | Delete one character |
| Delete | Reset calculator |
| u | Square (x²) |
| i | Square root (√x) |
| j | Change sign (±) |
| k | Percentage (%) |
| l | Reciprocal (1/x) |
| ' | Activate shift mode |
| Shortcut | Function |
|---|---|
| r | Power (xⁿ) |
| t | Root (ⁿ√x) |
| f | Power of 10 (10ⁿ) |
| g | Modulo (x%y) |
| h | Factorial (x!) |
| q,w,e | Trig (sin, cos, tan) |
| a,s,d | Constants (Pi/2, ln10, ln2) |
| z,x,c | Constants (Pi, phi, e) |
| v | Integer part |
| b | Fractional part |
| Shortcut | Function |
|---|---|
| C-Delete | Memory clear (MC) |
| C-Backspace | Memory recall (MR) |
| C-Enter, C-= | Memory store (MS) |
| C-+, C-Numpad + | Memory add (M+) |
| C--, C-Numpad - | Memory subtract (M-) |
| C-*, C-Numpad * | Memory multiply (M×) |
| C-/, C-Numpad / | Memory divide (M÷) |
| Shortcut | Function |
|---|---|
| f,g,h | ×2/×3/×5 or +5/+10/+100 |
| q,w,e | ÷2/÷3/÷5 or -5/-10/-100 |
| a,s,d | ×10/×100/×1000 |
| z,x,c | ÷10/÷100/÷1000 |
| Shortcut | Function |
|---|---|
| r,t | 1-bit shift (x<<1, x>>1) |
| u,i | Left/right shift (x<<y, x>>y) |
| f,g | 4-bit shift (x<<4, x>>4) |
| h | NOT operation |
| j,k,l | Bit operations (AND, OR, XOR) |
| q,w,e | NAND, NOR, XNOR |
| z,x,c | Hex input (A, B, C) |
| a,s,d | Hex input (D, E, F) |
| Shortcut | Function |
|---|---|
| F1 | Help |
| F2 | About |
| F3 | Settings |
| F4 | History |
| F5 | Tips |
| C-[1234] | Switch calculator tabs |
| C-Tab, → | Move to right tab |
| CS-Tab, ← | Move to left tab |
| Escape | Close current screen |
| Shortcut | Function |
|---|---|
| A-t | Toggle always on top |
| A-i | Toggle init panel on startup |
| A-d | Toggle dark mode |
| A-p | Toggle haptic mode |
| , | Toggle number grouping |
| A-, | Change grouping unit (3/4) |
| [, ] | Adjust decimal places (∞~16) |
| q | Quit application |
| Shortcut | Function |
|---|---|
| C-c, C-Insert | Copy main panel result |
| SC-c, AC-Insert | Copy sub panel result |
| C-v, S-Insert | Paste to main panel |
| SC-v, AS-Insert | Paste to sub panel |
| Shortcut | Function |
|---|---|
| ↑/↓ | Scroll 50px up/down |
| PageUp/PageDown | Scroll 400px up/down |
| Home/End | Scroll to top/bottom |
- Download and install the appropriate file for your platform from the release page.
- Windows installer and Linux AppImage files support automatic updates.
- For Linux, use the AppImage file standalone or install with
sudo snap install --beta qcalc. - For Android, install the provided APK. Coming soon to Play Store.
- MacOS and iOS packages are not available due to lack of testing capabilities.
For detailed development and build instructions, please refer to DEVELOP.md.