About Plotline
Plotline is an independent project made by Aalok: a free set of graphing, scientific, basic and matrix calculators that anyone can use in a browser without signing up.
At a glance
| What it is | Plotline is an independent project by Aalok: free graphing, scientific, basic and matrix calculators for students, with no sign-up. Learn why it exists. |
|---|---|
| Type | Page |
| Price | Free, with no account or sign-up |
| Works offline | Yes, after the first visit; installs as an app |
| Made by | Aalok (aalok.builds@gmail.com) |
| Last updated | 1 November 2026 |
Why Plotline exists
Plotline was built to be easy for someone using a graphing calculator for the first time. Each calculator has a keypad for typing math, and worked examples are one click away, so you can start from something that works and change it.
How it works
The calculators run in your browser, so there is no account and nothing to install. Graphs you save stay on your device, and the site can be installed as an app that works offline.
Each guide opens the matching calculator with its example already loaded. The example answers are checked by automated tests against Plotline’s own math engine, and each guide links to further reading.
Contact
Questions, ideas, or found a mistake? Email aalok.builds@gmail.com.
Frequently asked questions
Who made Plotline?
Plotline is an independent project made by Aalok, and is not affiliated with Desmos, Texas Instruments or Casio. For questions, ideas, bug reports or feedback, email aalok.builds@gmail.com.
Is Plotline connected to Desmos, Texas Instruments or Casio?
No. Plotline is independent and is not affiliated with, endorsed by or connected to Desmos, Texas Instruments or Casio. Those names appear only to describe what Plotline does and does not do.
Is it free?
Yes. Every Plotline calculator is free, with no account, no sign-up and no ads inside the calculators.
Related
- Desmos alternative – Looking for a Desmos alternative? Plotline is a free graphing, scientific and matrix calculator with no sign-up.
- Privacy – How Plotline handles your data: no accounts, graphs saved only on your device, and analytics from Google Analytics and Vercel to count visits.
Free calculators
- Graphing Calculator – Graph functions, circles, inequalities, polar and parametric equations instantly.
- Scientific Calculator – Free online scientific calculator with sin, cos, tan, inverse trig, logs, powers, roots, factorials, degrees and radians.
- Basic Calculator – A simple, free online calculator for add, subtract, multiply, divide, percent, square and square root.
- Matrix Calculator – Free matrix calculator: determinant, inverse, multiplication, transpose, RREF, rank, trace and powers, with exact fractions.
Plotline is an independent project and is not affiliated with Desmos, Texas Instruments or Casio.