rudrabhoj

rudrabhoj / numnum

Public

Blazingly fast GPU rendered open source alternative to Numi. It is a notebook calculator that understands maths in plain english. Built with Rust and GPUI.

calculator currency-converter freebsd gpui numi
13
0
100% credibility
Found Apr 12, 2026 at 13 stars -- GitGems finds repos before they trend. Get early access to the next one.
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AI Analysis
Rust
AI Summary

NumNum is a fast, GPU-powered text editor that evaluates math expressions live as you type, supporting variables, units, currencies, and percentages.

How It Works

1
🔍 Discover NumNum

You hear about a simple notepad that instantly calculates math as you type everyday numbers, budgets, or measurements.

2
📥 Get it running

Download or build the app for your computer and launch it with a single command.

3
✏️ Start typing

Open a blank page and jot down your thoughts like 'rent = 45000 INR' or '60 km / 2 hours'.

4
💡 Watch results appear

See answers pop up on the right instantly, lined up with your notes, updating as you edit.

5
🎨 Make it yours

Pick a color theme or font that feels right, or stick with the defaults.

✅ Math feels effortless

Your calculations are always ready, variables update everywhere, and you copy results with a click—no more button-mashing calculators.

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AI-Generated Review

What is numnum?

NumNum is a notebook calculator that lets you type math in plain English—like "rent = 45000 INR" or "60 km / 2 hours"—and see live results aligned on the right, with variables updating downstream automatically. It's an open-source alternative to Numi, built in Rust using GPUI for GPU-accelerated rendering that keeps it blazingly fast across platforms. Users get a full text editor with syntax highlighting, autocomplete for functions/units/currencies, and support for 170+ currencies, 100+ units, and natural percentages.

Why is it gaining traction?

Its GPU-powered UI delivers blazingly fast performance on complex sheets, outpacing sluggish web calculators while feeling like a native editor. Live exchange rates (cached offline), unit conversions like "220 V * 10 A = 2,200 W", and themes like Catppuccin make everyday math fluid without buttons or modes. As a GitHub project, the easy build scripts and cross-platform binaries hook Rust fans seeking a performant Numi replacement.

Who should use this?

Data analysts tracking expenses in multiple currencies, engineers jotting unit conversions during design, or finance pros modeling "total + 10%" scenarios without spreadsheets. It's perfect for solo devs prototyping formulas or anyone ditching phone calculators for a desktop notebook with undo/redo and copy-on-click results.

Verdict

Worth building from source for a blazingly fast alternative if you need literate calculations, but with just 13 stars and a 1.0% credibility score, it's early-stage—docs are solid, but expect tweaks as it matures. Solid foundation for power users patient with pre-1.0 Rust apps.

(198 words)

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