Dukascopy Bank provides institutional-quality historical data for free, covering Forex, commodities, indices, and CFDs
: Known for high-precision tick data that includes bid/ask prices and volume, making it a standard for accurate backtesting. Dukascopy Bank SA How to Access and Download : Use the official Dukascopy Historical Data Feed dukascopy historical data
: Developers use the IHistory interface to programmatically retrieve prices and order history within the JForex SDK. dukascopy historical data