Privacy Policy
Plotline has no accounts and does not ask for your name or email; saved graphs stay on your device, and analytics tools count visits so we can see how the site is used.
At a glance
| What it is | How Plotline handles your data: no accounts, graphs saved only on your device, and analytics from Google Analytics and Vercel to count visits. |
|---|---|
| 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 |
Your calculations and saved graphs
Calculations run in your browser. When you press Save, the graph is stored in your browser’s local storage on your device, and Plotline does not upload it. Clearing your site data for tryplotline.xyz removes it.
A share link contains your graph inside the link itself, so anyone who has the link can open that graph.
Analytics
Plotline uses Google Analytics to understand how visitors use the site, such as which pages are viewed and roughly where visitors come from. Google Analytics uses cookies and its data is processed by Google under its own privacy policy. You can opt out with Google’s browser add-on at tools.google.com/dlpage/gaoptout.
Plotline also uses Vercel Web Analytics and Speed Insights to count visits and measure page speed.
Hosting
The site is hosted by Vercel, which handles the requests your browser makes to load it, and these may be logged for security and reliability.
Offline use
Plotline keeps a copy of the site in your browser so that it works offline. This copy contains the site’s own files, not personal data.
Contact
If you email Plotline, your address and message are used only to reply. For any privacy question or request, email aalok.builds@gmail.com.
Last updated: November 1, 2026.
Frequently asked questions
Do I need to give Plotline any personal information?
No. There is no sign-up and no account, and every calculator works without your name, email or any other personal detail. Analytics count visits in aggregate, and you share an email only if you choose to write in.
Are my saved graphs uploaded?
No. Saved graphs stay in your browser’s local storage on your device, so clearing your site data removes them. They leave your device only if you export them as a file or send someone a share link.
Related
- About – Plotline is an independent project by Aalok: free graphing, scientific, basic and matrix calculators for students, with no sign-up.
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.