About This Converter

Welcome! If you are struggling with algebraic expressions or dabbled in compiler design then this tool is for you. It's able to rearrange infix notation like 3 + 4 × 2 into postfix the tool also able to reverse polish notation for example 3 4 2 × +).

The tool is lightweight and runs entirely in your browser. It's fast and provides accurate conversions in milliseconds, i used the stack based algorithms in this tool the classic shunting yard for infix to postfix and the reverse process for postfix to infix. The tool is totally free no signup required.

Why You’ll Love It

• Bidirectional: Convert between infix to postfix and postfix to infix with one click.
• Instant Feedback: Input your expression and click "Convert" the tool instantly show the output with no delay.
• Clear Error Alerts: It's instantly catch any mismatched parentheses or any invalid tokens immediately.
• Copy & Share: Copy the output to the clipboard by pressing the copy button to instantly share it with anyone.