Numr
A Vim-style TUI calculator for natural language math expressions
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Features:Natural language math: percentages, units, currencies Live exchange rates (152 currencies + BTC) Vim keybindings (Normal/Insert modes, hjkl, dd, etc.) Variables and running totals Syntax highlightingStack: Ratatui + Pest (PEG parser) + Tokio Install: # macOS brew tap nasedkinpv/tap && brew install numr# Arch yay -S numr GitHub: https://github.com/nasedkinpv/numr Would love feedback on the code structure—it's a workspace with separate crates for core, editor, TUI, and CLI.
HN · launched Nov 24, 2025 · 7 upvotes (top 62%) · 0 views
Niche: specialized calculation tools · 551 launches, 66 in the last 7 days ▼ -7% · Explore this niche →
Category and tags
- Horizontal
- Dev tools
- Prosumer
- Not AI
- Hobby / open-source project
Visit website ↗ Source listing ↗
More like this: all 551 launches in specialized calculation tools →
Could you build this?
Yes A terminal-based calculator using a PEG parser for natural language math and currency conversion APIs is a well-defined, self-contained project that an AI coding assistant can scaffold quickly.
Discussion
No comments on this launch.
Competitors
Other products that read as similar to this one : 87 launches clear the similarity bar, closest 8 shown.
Attention rank: #33 of 88 (itself plus its competitors, highest first, normalized so YC and Product Hunt are compared fairly).
Launched 5 days after the earliest competitor.
- Yuzu Sum · ph · 2026-11-01 · 2 upvotes · similarity 0.52
- Numlex · ph · 2026-09-06 · 1 upvotes · similarity 0.50
- Exchange Currency Calculator · ph · 2026-09-26 · 2 upvotes · similarity 0.42
- Numylo · ph · 2026-11-14 · 1 upvotes · similarity 0.42
- Rounding Solver · ph · 2026-10-09 · 1 upvotes · similarity 0.39
- Calmatro Free Calculators & Converters · ph · 2026-09-15 · 1 upvotes · similarity 0.39
- Purr Math Keyboard · ph · 2026-10-16 · 1 upvotes · similarity 0.38
- Live Currency Converter · ph · 2026-11-10 · 1 upvotes · similarity 0.38
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