Flash Sync Local Trade Copier
- Utilities
- Version: 1.10
- Updated: 28 July 2026
- Activations: 5
One EA for both sides — copy trades between two local MT5 terminals in milliseconds. No VPS, no server, no subscription!!
Flash Sync — One EA. Two Roles. Zero Lag.
Most local trade copiers make you install and manage two separate programs — one for the source account, one for the destination. Flash Sync is a single EA. Attach it to both terminals, flip one setting — Role: Master or Role: Slave — and you're done. No mismatched versions, no wondering which file goes where.
Flash Sync mirrors open positions between two MetaTrader 5 terminals running on the same Windows machine or VPS — no external server, no signal-provider subscription, no internet round-trip. Pure local file-based sync, in milliseconds.
Perfect for running a prop-firm evaluation alongside your main account, managing multiple client or personal accounts, hedging across brokers, or copying a manual strategy to a demo for testing.
Features
One EA, either role
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Same file on both terminals — pick Master (publishes trades) or Slave (mirrors them) per chart
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No version-mismatch risk, no confusion about which file belongs where
Speed & Reliability
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Trade-event driven — changes propagate instantly, plus a configurable poll interval down to 50ms
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Automatic staleness detection: if the Master terminal freezes or disconnects, the Slave pauses new trades instead of guessing
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Master to Slave position mapping survives terminal restarts — no duplicate trades after a reboot
Smart Lot Sizing
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Fixed lot, Multiplier of the Master's volume, or Equity-Ratio (auto-scales to the Slave account's balance)
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Automatic rounding to each symbol's lot step, min and max volume
Cross-Broker Symbol Mapping
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Different brokers use different names for the same instrument (DE40 vs GER40.cash, USTEC vs US100.cash) — map them explicitly, symbol by symbol
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Optional global suffix for brokers that append letters to symbol names (e.g. EURUSD -> EURUSDm)
Filtering & Risk Control
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Copy only specific magic numbers or symbols — leave the rest untouched
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Configurable max slippage
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Reverse-copy mode to open the opposite direction of the Master
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Dedicated magic number on copied trades so Flash Sync never mirrors its own trades back into a loop
How It Works
Flash Sync uses MetaTrader's shared "Common Data" folder — the one location every MT5 terminal on your Windows account can read and write to, regardless of broker. The Master instance writes a live snapshot of its open positions there; the Slave instance reads it and stays in sync. No sockets, no ports, no third party — which is exactly why it's this fast.
