# Math Notepad

6 Hacker News commenters recommended Math Notepad and 0 criticized it, November 2025 to November 2026. It was recommended in 1 of 13 months.

**Verdict:** A free browser calculator that keeps your expressions after refreshing or navigating away. The most common caveat is that it handles large numbers poorly.

## Why people recommend it

- Expressions persist after refresh or navigation (1 comments): "It looks like it also uses local storage - so if you navigate away and come back (or just refresh the page) all of your expressions are still there." ([source](https://news.ycombinator.com/item?id=47283067))

## What people warn about

- Limited handling of large numbers (1 comments): "handling large numbers is pretty limited" ([source](https://news.ycombinator.com/item?id=47282588))

## Alternatives hackers recommend

- [SpeedCrunch](https://hackerapproved.com/p/speedcrunch-1-1.md): 13 recommend
- [Qalculate](https://hackerapproved.com/p/qalculate.md): 9 recommend
- [Free42 by Thomas Okken](https://hackerapproved.com/p/free42.md): 7 recommend
- [iPhone Calculator app](https://hackerapproved.com/p/apple-calculator-app.md): 6 recommend

## Cite as

Hacker Approved, "Math Notepad", https://hackerapproved.com/p/math-notepad/ (counts from 1,795,640 Hacker News comments, November 2025 to November 2026).