Live Tools Tools
Real-time data tools powered by free public APIs.
Real-time tools powered by free public data. Convert between currencies with live reference rates, check cryptocurrency prices, and get current weather conditions — all with no sign-up and no keys.
All tools
Currency Converter
Convert between 30+ world currencies with live reference rates.
Crypto Price Checker
Live prices, 24h change and market data for top cryptocurrencies.
Weather Forecast
Current weather and forecast for any city, free.
3 tools · updated continuously
How these tools work
Real-time tools powered by free public data. Convert between currencies with live reference rates, check cryptocurrency prices, and get current weather conditions — all with no sign-up and no keys. Every tool in this category publishes its formula, worked example and assumptions so you can verify the result yourself.
Frequently asked questions
How fresh is the currency data?
Rates come from the open.er-api reference feed (sourced from the European Central Bank and other market providers) and refresh regularly. They are reference rates, not intraday buy/sell quotes.
Why does weather need my location?
It doesn't. You can search any city, and the data comes from the Open-Meteo API with no key and no location sharing.
Are these tools really free?
Yes. They use free public APIs with generous rate limits, and nothing runs on your own servers.