Managing Data

The Local Backtester uses locally stored historical candle data. You need to download data before running backtests.

Downloading Data

1. Navigate to the Data tab
2. Select an exchange (Blofin, Bybit, Bitget, Bitunix, or Hyperliquid)
3. Select a symbol using that exchange's native format (e.g., BTCUSDT on Bybit or BTC-USDT on Blofin)
4. Select a bar size (1m, 5m, 15m, 30m, 1h, 4h, 1d)
5. Choose the number of days to download (up to 365)
6. Click Download

The backtester fetches candles directly from the exchange's public API and stores them locally.

Supported Exchanges

Data Storage

Downloaded data is stored in the /app/data directory inside the container. If you mounted a volume (as recommended in the installation guide), this maps to your local data/ folder, so data persists across container restarts.

Viewing Your Data

The Data tab shows all locally available datasets with:

• Exchange and symbol
• Bar size
• Number of candles
• Date range covered

Data Quality

The backtester automatically validates downloaded data for:

• Gaps — Missing candles in the time series
• Duplicates — Repeated timestamps
• Ordering — Candles in correct chronological order

If issues are detected, you can use the Repair function to clean the dataset.

Tips

• Download more data than you need — Having 90+ days gives better statistical significance
• Use 1-minute data — You can always aggregate up to larger timeframes, but can't go the other way
• Re-download periodically — Keep your data fresh for strategies you're actively testing
• Check coverage — Make sure your data covers the date range you want to backtest