JForex is Dukascopy’s proprietary trading and charting platform. It contains a built-in "Historical Data" downloader.
If you want, I can:
Because the data comes from the SWFX marketplace (aggregating liquidity from 15+ banks), the historical quotes include real bid/ask spreads. This is vital for backtesting. If you test a strategy using "fixed spreads," you might be profitable, but fail in live markets with variable spreads. Dukascopy historical data allows you to simulate slippage and spread widening during high-impact news events (like NFP or FOMC). dukascopy historical data
Use these cautiously. They hit Dukascopy’s servers hard. Be respectful with your request rates to avoid IP bans. " you might be profitable