A free currency converter, built to be useful.
Xratei is a simple, fast tool for converting between the world’s currencies — 200+ fiat, the cryptocurrencies that matter, and precious metals like gold and silver. No sign-up required, no paywalls, no clutter. Behind the scenes it’s a small edge application: dedicated pages for popular pairs in ten languages, historical charts for every pair, and a free JSON API for developers.
What you can do here
- Convert any amount between any two of 200+ currencies, including BTC, ETH, XAU, XAG.
- See rates at a glance against your chosen base currency. Filter by category, search by name, star favorites.
- Look at history over the last week, month, quarter, or year for any pair.
- Read pair pages — dedicated pages like /usd-to-eur with conversion tables and a short daily commentary, available in ten languages.
- Build with the API — free JSON endpoints at /api/v1. Create a free key in the dashboard; every key includes a generous daily request allowance.
- Switch themes between dark and light. Pick what your eyes prefer.
Where the rates come from
Xratei aggregates exchange-rate data from open public market sources, refreshed daily and served from a global edge cache with an automatic fallback.
Because the data is refreshed daily and is informational by nature, please treat rates shown here as a reference, not as live trading quotes. See our Terms of Service.
How Xratei is funded
Xratei is free to use. Hosting and bandwidth are paid for by display advertising via Google AdSense. We try to keep ads non-intrusive — you can read more about how we handle this in our Privacy Policy.
The team
Xratei is an independent project. If you have a suggestion, a bug report, a press question, or just want to say hi, head to the contact page or write to info@xratei.com — we read every message.
Stack
A vanilla-JavaScript front end with hand-written CSS, served from Cloudflare’s edge network. The Worker behind it renders the pair pages and sitemap, caches the daily rates at the edge, archives history for the charts, and generates the short pair commentary. Lean by design — no heavy frameworks, fast even on slow connections.