⚙️

The Engineer's Toolkit

Free Online Tools for Engineers

10 free tools · no signup
From the FreeWWW blog The Engineer's Toolkit: Free Online Tools for Engineers An engineer's dream. We have tools galore for all types of engineers; mechanical, electrical, structural, thermal, RF, and more. And it's all free! Read the full guide →

Click the star on any tool to pin it to the top of your FreeWWW homepage. Click it again to unpin.

Engineering Calculator Suite screenshot

Engineering Calculator Suite

Various calculators for engineers

Open tool →
Scientific Calculator screenshot

Scientific Calculator

Scientific Calculator

Open tool →
Unit Converter screenshot

Unit Converter

Imperial & Metric - length, weight, temperature, volume, speed, pressure, energy, and power.

Open tool →
Free graph and chart maker screenshot

Free graph and chart maker

Create graphs and Charts

Open tool →
Statistics Calculator Suite screenshot

Statistics Calculator Suite

Mean, median, range, and more

Open tool →
Flowchart creator screenshot

Flowchart creator

Create beautiful flowcharts

Open tool →
Network Diagram Creator screenshot

Network Diagram Creator

Create detailed network diagrams

Open tool →
Gantt Chart Creator screenshot

Gantt Chart Creator

Create professional project timelines

Open tool →
Number base converter screenshot

Number base converter

Binary, hex, Octal, etc.

Open tool →
Regular Expression Tester screenshot

Regular Expression Tester

Test/Create Regex

Open tool →