I Built a Free TI-84 Online Calculator for Students

Txsmx — Tue, 23 Jun 2026 13:29:19 +0000

As a student, I often needed a TI-84 graphing calculator for math and science classes. The problem was simple: most TI-84 calculators are expensive, and many online alternatives either require downloads, accounts, or a constant internet connection.

That's why I decided to build FreeTI84.

Why I Created FreeTI84

Many students only need a TI-84 calculator occasionally. Buying a physical calculator can cost over $100, which isn't practical for everyone.

When I searched for online alternatives, I noticed a few common issues:

Some calculators were slow and outdated.
Many didn't work well on mobile devices.
Most stopped working when the internet connection was lost.
Some required complicated setup steps.

I wanted something simpler.

What Is FreeTI84?

FreeTI84 is a free online TI 84 calculator that runs directly in your web browser. There's nothing to download, no account to create, and no installation required.

Just open the website and start calculating.

Key Features

✅ Free to use

✅ TI-84 style calculator interface

✅ Works on desktop and mobile devices

✅ Fast and lightweight

✅ Clean and easy-to-use design

✅ No registration required

✅ Progressive Web App (PWA) support

✅ Offline functionality after installation

The Feature I Wanted Most: Offline Support

One thing that makes FreeTI84 different from many other online calculators is its offline capability.

After opening the website and installing it as a PWA, students can continue using the calculator even without an internet connection.

This is especially useful for:

Students with limited internet access
Traveling users
School environments with restricted networks
Quick calculations when Wi-Fi isn't available
Built for Students

The goal wasn't to create another complicated calculator website.

The goal was to create a tool that students could open instantly and use without distractions.

Whether you're working on algebra, trigonometry, graphing, calculus, or science-related calculations, FreeTI84 aims to provide a familiar TI-84 experience directly from your browser.

What's Next?

I'm continuously improving the project and adding new features based on user feedback.

If you're a student, teacher, or someone who regularly uses a graphing calculator, I'd love to hear your thoughts.

Try it here:

👉 https://freeti84.com

Final Thoughts

Building FreeTI84 started as a small project to solve a personal problem, but it has grown into a tool that can help students access a TI-84 calculator without spending money on expensive hardware.

If you're looking for a free, browser-based TI-84 calculator with offline support and PWA functionality, give FreeTI84 a try.

Thanks for reading!

DEV Community: Txsmx

I Built a Free TI-84 Online Calculator for Students