Crypto Calculator

v2 · macOS · Windows · Linux

Crypto in your currency.
One click away.

Crypto Calculator lives in your menu bar or system tray. You get a live price, a 7-day trend and a converter that works both ways for the top 100 coins. No browser tab and no account.

Free and open source · built with Rust

Live demo: the real app UI on CoinGecko prices. Type an amount, or press / to pick a coin.

Before and after

Before

  1. Open a browser
  2. Find an exchange
  3. Copy the price
  4. Open a calculator
  5. Do the maths

With Crypto Calculator

Glance at ₿ $81,692 in your menu bar. Click it for everything else.

Small app, sharp edges filed off.

Converts both ways

Type in either field and the other one updates. Decimal commas and points both work, so 0,5 and 0.5 mean the same thing. One click copies the result.

Top 100 coins

Search by name or ticker. ⌘K opens the picker from anywhere in the app.

9 currencies

  • USD
  • EUR
  • GBP
  • JPY
  • CAD
  • AUD
  • CHF
  • BRL
  • INR

Keyboard-first

/
Pick a coin
⌘R
Refresh
Esc
Hide
⌘Q
Quit

Never quietly wrong

Prices refresh every minute. If an update fails, the app says so and the tray price gets a ⚠. It won't show an old price as if it were new.

Tiny and private

Native Rust and Tauri, with no Electron. There is no account and no tracking. The only server it talks to is CoinGecko.

Download

Builds come from the latest GitHub release.

macOS

macOS 11+, Apple Silicon and Intel

    On first launch, macOS may block the app because it isn't notarized. Go to System Settings → Privacy & Security → Open Anyway.

    Windows

    Windows 10 / 11, x64

      SmartScreen may warn about an unknown publisher. Choose More info → Run anyway.

      Linux

      x64 · AppImage, Debian/Ubuntu, Fedora

        GNOME needs the AppIndicator extension to show tray icons. Open the app from its tray menu.

        Questions

        Is it really free?

        Yes. It has no ads, no subscription and no account, and the source is on GitHub.

        Where do the prices come from?

        From CoinGecko's public market data, refreshed every 60 seconds. If CoinGecko rate-limits or can't be reached, the app shows how old its last price is.

        Does it collect any data?

        No. Your coin and currency choices stay on your computer. The only network requests go to CoinGecko for prices and coin icons.

        Why does my system warn me when I open it?

        The builds aren't signed with a paid Apple or Microsoft certificate. The steps under each download get you past the warning. If you'd rather not trust a binary, you can build it from source.

        How do I start it at login?

        On macOS, add it under System Settings → General → Login Items. On Windows, put a shortcut in shell:startup. On Linux, use your desktop's autostart settings.