About
TI 84 Calculator Online is a free website that lets you use a TI-84 Plus CE style graphing calculator in your browser. No download. No account. Just open the page and start calculating.
What we offer
The main tool is an online TI-84 Plus CE calculator for homework, practice, and classroom demos. We also include a graphing calculator and a scientific calculator for quicker work when you do not need the full TI-84 interface.
Who it is for
We built this for students who left their calculator at school, teachers who want a quick demo on a projector, and anyone who needs graphing or scientific math without buying extra hardware. It works on desktops, tablets, and phones.
Open source software we use
Parts of the graphing and scientific tools rely on open source libraries. The graphing page uses function-plot under the MIT License. The scientific and graphing math engines use mathjs under the Apache License 2.0. You can read the full notices on our Open Source Licenses page.
About Texas Instruments
TI-84 Plus CE is a trademark of Texas Instruments. This website is an independent educational project. We are not affiliated with, sponsored by, or endorsed by Texas Instruments. For trademark details, see our Disclaimer.
Our goal
Keep useful calculator tools free and easy to reach. If you want help getting started, visit How to Use or the FAQ.