Desmos
A free graphing calculator and maths activities that make maths visual and interactive.
What is Desmos?
Desmos is a free online graphing calculator loved by teachers and learners. Type equations and see them come alive instantly. It also has scientific and geometry tools, plus interactive classroom activities.
Think of it as a calculator that draws your maths.
What you can do with it
- Graph anything: equations, tables and sliders
- Scientific and geometry tools
- Classroom activities: interactive lessons
- Accessibility: audio trace and screen reader support
Get started in 3 steps
- Go to desmos.com
- Open the graphing calculator
- Type an equation and add sliders
Try this today
- Graph y = mx + c with sliders for m and c
- Draw a picture using equations
- Try a classroom activity
Good to know
- Free: no ads
- Used in exams: in many countries
- Easy to share: link to any graph
Quick challenge
Draw a smiley face using only equations!
Picked by the Scrollwell team · updated 25 Oct 2026. Desmos is run by its own company — read its privacy terms before you add learners' names or marks.