Which operators are supported?

AND (∧ or &&), OR (∨ or ||), NOT (¬ or !), implies (→) and iff (↔). Both Unicode symbols and ASCII operators work.

How are filters evaluated?

Each row is evaluated by substituting the variable values (true/false) and using JavaScript's &&, ||, ! operators. The → operator is rewritten as (!a || b) and ↔ as (===).

What's the max number of variables?

Three (P, Q, R) — giving up to 8 rows. For more variables, the table grows exponentially.

Is my expression uploaded?

No. Evaluation happens entirely in your browser.

Truth Table Generator

New

Generate a truth table for any boolean expression.

100% private — no uploads Developer ToolsFree & unlimited Read tutorial

See how it works

Watch a quick simulation of this tool in action — no file needed.

How to use Truth Table Generator

Follow these steps — everything happens instantly in your browser.

1
Step 1. Pick the variables you need — P, Q, R.
2
Step 2. Enter a boolean expression (e.g. P ∧ Q).
3
Step 3. Click Generate table.
4
Step 4. Review the 2ⁿ rows.

Why use this tool

Frequently asked questions

Everything you might want to know about truth table generator.

Related tools

Trending

Regex Tester

Test JavaScript regex with live match highlighting & groups.

Open

New

JSONPath Tester

Evaluate JSONPath expressions against JSON — pure JS.

Open

Trending

Cron Expression Parser

Explain a 5-field cron expression and compute its next 5 runs.

Open

Trending

Number Base Converter

Convert between binary, octal, decimal & hex — BigInt-powered.

Open