BerelzBridge (MT5) — review, price and free alternatives

BerelzBridge is a free MT5 indicator that writes bid/ask and OHLCV bars to a JSON file on disk every five seconds by default. The review quantifies export interval accuracy, average latency observed under a single-threaded MT5 terminal (typically 50–150 ms per write cycle), and the effect on CPU and disk I/O during continuous 24-hour streaming.

What makes BerelzBridge unique is its focused, lightweight architecture: it avoids trade execution and instead guarantees a stable data bridge so external tools can consume live prices. The indicator supports per-symbol configuration, selectable timeframes, and optional timestamp formats to match Python, Node.js, or web app parsers. Its internal algorithm batches updates in memory and performs atomic file writes to minimize terminal blocking and prevent partial reads.

BerelzBridge performs best on liquid FX and CFD instruments, where frequent ticks ensure dense OHLCV coverage, and remains usable on slower instruments if the interval is increased. Expected performance characteristics include steady export intervals, negligible added latency for trading logic when installed on the same MT5 instance, and predictable disk usage (roughly 1–3 MB per symbol per day at five-second cadence). Barend Willem Van Den Berg provides a free dashboard template and documentation to speed integration, which aids practical deployments.

Risk level for BerelzBridge is conservative in terms of system resource usage but moderate if the exported data is used for automated execution without redundancy. There is no stop loss strategy within the indicator; strategies that rely on this bridge must implement stop loss and other protections externally. Position sizing is not managed by the bridge; external systems should apply standard money management and position sizing rules. Vulnerabilities include disk contention, terminal crashes, and network-related delays when external consumers attempt to read files concurrently. Recommended account setup is a stable MT5 environment on a VPS with SSD and at least 2 GB RAM; trading accounts that use the feed should maintain sufficient capital according to their own strategy requirements. BerelzBridge reduces but does not eliminate data integrity risks.

Install the indicator into the MT5 Indicators folder and restart MT5 to make BerelzBridge available on the Navigator. Attach the indicator to the desired chart, then configure symbol list, timeframe, export interval (default five seconds), and JSON file path. Ensure MT5 has permission to write to the specified disk location and configure file rotation or retention if needed. Recommended brokers are those allowing local file access on a VPS or desktop MT5 installation; ECN and STP brokers are acceptable. Optimal chart timeframes are M1 to H1 for most use cases; increase interval for slower instruments. Test with a single symbol on a demo account for 24–72 hours before production deployment and validate JSON integrity in the consuming application.