quicksheet-fx

Live currency conversion extension for QuickSheet — the terminal spreadsheet that runs as your desktop wallpaper.

Uses the Frankfurter API (European Central Bank rates). No API key required. 200+ currencies. Rates update daily.

Install

Type in any QuickSheet cell:

ext: github:Deskworks/quicksheet-fx

Usage

fx: 1000, USD, EUR           → Convert $1,000 to EUR
fx: 5000, USD, EUR, GBP, CAD → Convert to multiple currencies
fx: EUR, JPY                  → Show rate for 1 EUR → JPY

Output example

💱 1,000.00 USD │ Rate   │ Converted
→ EUR           │ 0.8551 │ 855.14 EUR
→ GBP           │ 0.7413 │ 741.30 GBP
→ CAD           │ 1.3714 │ 1,371.40 CAD
ECB · 2026-05-15

Features

• 200+ currencies — all currencies tracked by the European Central Bank
• No API key — completely free, no signup, no rate limits for normal use
• 1-hour cache — avoids redundant API calls (ECB rates update once per day)
• Multi-target — convert to multiple currencies in one cell
• Auto-format — thousands separators, 2 decimal places for amounts, 4 for rates

Perfect for

• International freelancers — check rates before invoicing clients in different currencies
• Digital nomads — quick budget conversions on your desktop wallpaper
• Finance dashboards — combine with 1099:, budget:, qtr: for a complete freelancer finance suite

Part of the Freelancer Finance Suite

Extension	Prefix	What it does
quicksheet-1099-ext	1099:	Self-employment tax estimation
quicksheet-budget	budget:	Budget envelope tracking with visual bars
quicksheet-qtr	qtr:	IRS quarterly tax deadline countdown
quicksheet-fx	fx:	Currency conversion (this extension)

Requirements

• QuickSheet with extension support
• .NET 9 SDK
• Internet connection (for API calls)

License

MIT