websocat
The premium Open Source alternative to Postman
🎯 Best for:Developers needing to debug or automate WebSocket connections via terminal.
What is websocat?
A command-line utility for connecting to and piping data through WebSockets with socat-like functionality. It enables bidirectional data transfer between standard input/output and WebSocket endpoints.
Tech Stack
RustOS & Utilities
Why websocat?
- • Zero dependencies
- • Supports SSL/TLS
- • Extremely fast execution
Limitations
- • No graphical interface
- • Steep learning curve for flags
- • Manual message formatting
3/5/2026
Last Update
319
Forks
157
Issues
MIT
License
Financial Leak Detected
Stop the "SaaS Tax"
Your team could be burning cash. Switching to websocat instantly boosts your runway.
Competitor Cost
-$1,440
/ year (est. based on Postman)
Self-Hosted
$0
/ year
Team Size10 Users
150+
SAVE 100%