Local Mock Server is an offline loopback HTTP JSON stub endpoint server for local API development, frontend prototyping, and integration testing on Linux. An independent Linux desktop alternative to Mockoon for authoring local REST stub routes, simulating response latency, and inspecting real-time loopback traffic without external dependencies.

Key Features:

• Loopback Route Studio & Live Server: Runs a multi-threaded HTTP server bound strictly to 127.0.0.1 with configurable ports, GET/POST/PUT/DELETE/PATCH routes, path matching, custom HTTP status codes (200..503), simulated response latency in milliseconds, custom headers, and dynamic {{uuid}} / {{timestamp}} JSON template expansion.
• Live Request & Response Traffic Log: Real-time traffic table displaying incoming local requests with method, path, status code, latency, request/response headers, and formatted JSON payloads.
• Workspace Route Exporter: Imports and exports route collections as JSON, generates OpenAPI 3.0 starter stub specifications, and exports CSV endpoint summaries.

Disclaimer: Local Mock Server is an independent open-source project by TC Studio and is not affiliated with, endorsed by, or sponsored by Mockoon.