Dev tools · alternatives · 2026
24 alternatives to Numr – A Vim-style TUI calculator for natural language math expressions
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 highlighting Stack: 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.
Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes.
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I launched NumPad v1 on here a few years ago, and back then it wasn't much more than a thin CodeMirror wrapper around the calculator engine I'd written. Now I've rewritten it as a PWA that supports multiple documents, persists them to IndexedDB, and has a syncing service for paying customers. Syncing is handled by Automerge[1] under the hood, which should make it relatively easy to get document sharing working too. [1] https://automerge.org/
2022 · numpad.io · its alternatives →
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Numscript is a simple, declarative language that helps you model financial transactions. You can do quite a few things with it, such as modeling: * Payments involving vouchers and a user's prepaid balance * Complex funds destination scenario where the customer gets cash back * Configurable user credit balance spending transactions The main idea is to take the pain out of describing of a system dealing with money movements should behave in traditional languages such as JS/TS/Go/Ruby etc, landing an expressive way to model these movements of value. It is voluntarily broad in…
2024 · playground.numscript.org · its alternatives →
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Numby▲83A natural language calculator for your terminal and macOS
Nov 2025 · numby.vivy.app · its alternatives →
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NumWorks▲196The graphing calculator that makes learning math easier.
2017 · numworks.com · its alternatives →
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Hissab▲108Hissab is a strict, unit-aware natural-language calculator for exact units, dates, finance, developer math, and AI-agent workflows. Free, open-source, and installable.
2023 · hissab.io · its alternatives →
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Terminal based bit manipulator in ncurses. Contribute to mellowcandle/bitwise development by creating an account on GitHub.
2019 · github.com · its alternatives →
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The hardest data science tournament on the planet. Predict the stock market with AI to power our hedge fund.
2015 · numer.ai · its alternatives →
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While speccing out this spreadsheet tool, I realized that I never had to think about the keybindings. It all just came naturally from Vim. Normal/insert/visual modes, hjkl navigation, dd/yy/p, :w, :q. The usual muscle memory works. It supports CSV/TSV import and export, and a native .cell format that preserves formulas. The formula engine handles SUM, AVERAGE, COUNT, MIN, MAX, and IF with range references. The codebase is a Cargo workspace: a pure cell-sheet-core library (no TUI dependency) and a cell-sheet-tui crate on top of ratatui. Early days, but it's usable. To…
Apr 2026 · github.com · its alternatives →
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CalPal▲105I built this using React/Next.js. The parsing logic uses [library/custom regex]. Added Gemini API support so users can generate budget templates dynamically. No ads, just a tool.
Jan 2026 · trycalpal.app · its alternatives →
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2015 · parnold-x.github.io · its alternatives →
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Discover exchange rates directly from your Mac menu bar
2019 · currencymenu.com · its alternatives →
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CLI tool to convert a natural language date/time string to UTC - ad-si/tu
2024 · github.com · its alternatives →
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Wrote this to learn more about the `chumsky` parser combinator library, rustyline, and the `ariadne` error reporting crate. Such a nice DX combo for writing new languages. Still a work in progress, but I thought I'd share :)
2025 · github.com · its alternatives →
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Credit goes to the contributors of https://github.com/enjeck/num2math for making the tool's core.
2024 · scientific.place · its alternatives →
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Financial Clarity through Real-Time Data Intelligence.
Feb 2026 · numexo.io · its alternatives →
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Commandline tool to generate Cistercian numerals. Contribute to rhardih/cistercian development by creating an account on GitHub.
2021 · github.com · its alternatives →
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Powerful and convenient currency converter 💰
2019 · apps.apple.com · its alternatives →
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Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →