Tester
WebSocket Client Inspector
- Test
- Mobile Friendly
- Accessibility Tested
- SEO Optimized
- Fast Loading
- Responsive
Version 1.0.0 · Last reviewed
How it worksShow guide
Introduction
A full-featured WebSocket workbench for developers. Point it at wss:// or ws:// endpoints, choose subprotocols, send text or binary payloads, and watch a live message log with direction markers.
Step-by-step
- Enter the WebSocket URL and optional subprotocols
- Click Connect and watch the connection state
- Send text frames from the composer
- Inspect inbound/outbound traffic in the message log
Worked example
Connect to a public echo service, send `{ "action": "ping" }`, and confirm the echoed frame appears in the inbound log.
Use cases
- Smoke-test staging WebSocket APIs before shipping
- Replay auth handshakes and subscription messages
- Verify reconnect backoff against your gateway
Frequently asked questions
Does traffic pass through Bestrao servers?
No. Your browser connects directly to the target WebSocket host. Only the signaling-free raw WebSocket path is used.
Related tools
-
Socket.IO Event Tester
Connect to a Socket.IO server, emit custom events with JSON payloads, and watch inbound events in a structured log.
-
WebSocket Latency Lab
Measure WebSocket round-trip time with automated ping loops, live charts, and min/max/avg/p95 statistics.
-
Live JSON Stream Viewer
Subscribe to a WebSocket feed, parse JSON frames on the fly, filter events, and inspect structured payloads in real time.
-
API Workbench
Browser-native API client — build or paste cURL requests, inspect responses, manage collections, and store everything in IndexedDB. No backend required.
Popular tools
-
AES Encrypt / Decrypt
Encrypt and decrypt text with AES-GCM or AES-CBC locally. Passphrase (PBKDF2) or raw keys, custom IV/salt, and portable JSON packages.
-
Base64 Encode / Decode
Encode text to Base64 or decode Base64 back to UTF-8 text in your browser.
-
Line Sorter & Deduplicator
Sort lines alphabetically or by length, remove duplicates, and trim empty lines — locally in your browser.
Was this helpful?
Your feedback stays on this device only — it is not sent to the Bestrao team yet.