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About WebSocket King
WebSocket King is a WebSocket client that runs in the browser. It is designed for testing and debugging WebSocket connections: open a connection to a server, send messages and watch what comes back.
Because it is a web page, there is nothing to install. It suits developers building or troubleshooting a real-time service who want a quick way to talk to a WebSocket endpoint by hand.
Strengths
- Nothing to install
- Focused on WebSocket testing and debugging
Limitations
- WebSockets only, not a general HTTP client
- Little public documentation about its features
Details
- Pricing
- FreeFree to use in the browser.
- License
- Proprietary
- Platforms
- Web
- How it runs
- Web application
- Best suited for
- Developers debugging a WebSocket endpoint quickly in the browser
- Categories
- API clients, Developer tools
- Last verified
- Added
- Provenance
- Facts checked against the developer's own pages and store listings, 1 sources on file.
Alternatives to WebSocket King
Compare allSoftware that can replace WebSocket King for an important use case, and what changes if you switch.
Hoppscotch
A fast API client that runs in a browser tab, with a self-hostable workspace if you want one.
Hoppscotch also runs in a browser tab with nothing to install, is open source under MIT, and adds HTTP, GraphQL, Server-Sent Events, Socket.IO and MQTT to WebSocket testing.
Firecamp
An open-source API client for testing REST, GraphQL, WebSocket and Socket.IO requests in the browser.
Firecamp is an open-source browser client handling WebSocket and Socket.IO alongside REST and GraphQL, with a guest mode, though saving collections requires an account.
websocat
A command-line WebSocket client and server, like netcat or curl for ws:// with socat-style features.
websocat moves WebSocket testing to an open-source command-line client and server that works in pipes and shell scripts, with socat-style bridging to other streams.
Insomnia
An API client for REST, GraphQL and gRPC that can keep everything local or sync through Git instead of a cloud.
Insomnia is an open-source desktop client that supports WebSockets along with REST, GraphQL, gRPC and SSE, requiring installation rather than running in the browser.
Yaak
An offline-first API client for REST, GraphQL, gRPC, WebSockets and SSE, with requests stored as files you can commit to git.
Yaak is an open-source offline desktop client covering WebSockets plus REST, GraphQL, gRPC and SSE, storing requests as files you can commit to git.
Bruno
An API client that saves collections as plain files in a folder, so Git handles the sharing instead of a cloud account.
Bruno is an open-source MIT desktop client supporting WebSocket, REST, GraphQL and gRPC, with collections kept as plain files shared through Git.
Similar software
Related functionality, not necessarily a direct replacement.
MQTTX
A desktop, web and command-line MQTT client for testing brokers, topics and messages.
Proxyman
Desktop HTTP and HTTPS debugging proxy for capturing, inspecting and mocking network requests.
Packet Sender
A utility for sending and receiving TCP, UDP, SSL and DTLS packets to test network services.
