ArchCalc
A fast, lightweight desktop calculator and everyday toolkit — built with Rust, Tauri and SolidJS.
Website ·
Documentation ·
Download ·
Report a bug
Features
- Command bar — type maths, unit conversions (
5 km to mi), percentages (18% of 4999) or developer commands (uuid, sha256 text, base64 encode text, now) in one box. Ctrl+Space jumps back to it from anywhere.
- Scientific calculator — trigonometry and inverses, logarithms, roots, powers, factorial, π and e, with a DEG/RAD toggle. Expressions are parsed and evaluated by a custom Rust AST engine.
- History — every result is saved locally and searchable, with configurable retention.
- Workspaces — notepad-style sheets where each line is calculated live; assign variables and reuse them.
- Converters — length, weight, temperature and storage.
- Developer tools — hash generator, UUIDs, timestamps, Base64, JSON formatter, binary, hex and storage conversions.
- System monitor — live CPU, memory, swap and network charts.
- Quote Studio — cost and quote builders for 3D printing (multiple filament spools and plates), freelancing, baking, tailoring, handmade crafts, catering, printing and home painting.
- Organise work as products, each with several quotes you can duplicate and compare.
- Repeatable rows (spools, fabrics, surfaces, menu items), raw materials, overheads, five profit methods, discount, tax and rounding.
- Simple quotes for just the core costs, or Detailed quotes with utilities, labour and overheads.
- Client orders: combine several quotes of a product (e.g. one per colourway) into one quote for a client, with one discount and tax for the order or each quote's own.
- Markdown notes & terms sections.
- Export branded PDF, Word or Markdown quotes in five templates — or a live Excel spreadsheet whose formulas recalculate when you change an input. CSV too.
- Your data stays on your machine — no account, no telemetry. Export and import everything from Settings.
| Calculator | Quote Studio | Spreadsheet export |
|---|
| | |
A two-minute tour of every feature is on the website and in the docs.
Install
| Platform | How |
|---|
| Arch Linux | yay -S archcalc (or any AUR helper) |
| Debian / Ubuntu | .deb from Releases |
| Fedora / RHEL | .rpm from Releases |
| Windows | .msi or .exe installer from Releases |
| Flatpak | Coming soon |
Windows SmartScreen: ArchCalc isn't code-signed yet, so Windows may show an "Unknown Publisher" warning the first time. Choose More info → Run anyway. See Getting Started for details.
Repository layout
This is a pnpm monorepo with two independent projects:
| Path | What | Stack |
|---|
app/ | The desktop application | Tauri 2 · Rust · SolidJS · Tailwind CSS 4 · Vite |
web/ | Landing page and documentation site | Next.js · Fumadocs (MDX) · Tailwind CSS 4 |
See app/ARCHITECTURE.md for how the app is put together.
Development
Prerequisites: Node.js 20+, pnpm 11, the Rust toolchain, and the Tauri system dependencies for your OS.
# Desktop app
cd app
pnpm install
pnpm tauri dev # run the app with hot reload
pnpm test # unit tests (Vitest)
pnpm tauri build # production bundles
# Website & docs
cd web
pnpm install
pnpm dev # http://localhost:3000
Before opening a pull request, run the same checks as CI:
pnpm dlx @biomejs/biome check ./ # in app/ and web/
cd app/src-tauri && cargo fmt -- --check
cargo clippy --workspace --all-targets --all-features -- -D warnings
cargo test
Contributing
Contributions are welcome — bug reports, features, docs and new Quote Studio builders alike. Please read the Contributing Guide and our Code of Conduct. Commits follow Conventional Commits; releases and the changelog are generated by release-please.
AI coding agents should read AGENTS.md first.
Found a security issue? Please follow the Security Policy instead of opening a public issue.
License
MIT © 2026 Murtaza Hakem Patel and contributors
