Testers
Browse free testers on Bestrao — fast, practical utilities you can open instantly. Part of the Bestrao tools platform · 5 testers live
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Developer Testers5
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Internet Speed Test
Measure download, upload, ping, and jitter in your browser with a real network test — not a simulated result.
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Regex Tester
Test JavaScript regular expressions against sample text and inspect matches.
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Socket.IO Event Tester
Connect to a Socket.IO server, emit custom events with JSON payloads, and watch inbound events in a structured log.
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WebSocket Client Inspector
Connect to any WebSocket endpoint, send frames, inspect inbound traffic, and debug reconnect behavior — all in your browser.
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WebSocket Latency Lab
Measure WebSocket round-trip time with automated ping loops, live charts, and min/max/avg/p95 statistics.