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Comparison

Mockd vs Postman Mock Server

All 7 protocols. No call limits. Local-first.

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Feature Comparison

Side-by-side comparison of Mockd and Postman Mock Server capabilities.

FeatureMockdPostman
Free tierUnlimited endpoints & calls1,000 calls/month
Protocols7HTTP only
WebSocket mocks Yes No
gRPC mocks Yes No
Local/offline Yes No
Recording proxy Yes No
Rate limiting No limits Rate limited
Built-in Cloud Tunnel Yes No
MCP Server (AI editors)18 tools No
AI Mock Generation4 providers No

Why Switch from Postman?

No Call Limits

Postman charges by API calls (1,000/month free). Mockd has no limits — unlimited endpoints and unlimited calls. Run load tests, stress tests, and integration suites without worrying about limits.

Works Offline

Mockd runs entirely on your machine. No internet connection required. No cloud dependencies. Your mock data stays private and local.

All 7 Protocols on Free

Mock HTTP, GraphQL, gRPC, WebSocket, MQTT, SSE, and SOAP - all on the free tier. Postman mock servers only support HTTP.

MITM Proxy Recording

Capture real API traffic through our MITM proxy and replay it as mocks. Perfect for creating realistic test fixtures from production traffic.

No Rate Limiting

Postman mock servers are rate limited. Mockd isn't. Use it for performance testing, load testing, or as a development server without throttling.

Built-in Cloud Tunnel

Share your local mock server with a public URL using one command. No need for ngrok or Cloudflare Tunnel. Built-in cloud tunnel supports all 7 protocols on port 443.

Use Case Comparison

When to choose Mockd over Postman Mock Server.

Postman works well for:

  • Quick HTTP-only prototypes
  • Teams already using Postman for API testing
  • Low-volume testing under 1,000 calls/month

Choose Mockd when you need:

  • WebSocket, MQTT, or SSE mocking - Postman doesn't support these
  • Load testing - No rate limits, unlimited calls
  • Offline development - Works without internet
  • Recording real traffic - MITM proxy included
  • CI/CD pipelines - Fast startup, low resource usage
Unlimited
API calls on free tier
7
Protocols supported
100%
Local & offline

From the Blog

Tutorial

WebSocket Mock Server for Testing

Something Postman can't do. No code required.

 Tutorial

MQTT Mock Broker for IoT Testing

Full MQTT broker with topics, QoS, and wildcards.

Ready to Switch?

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# Quick install
curl -sSL https://get.mockd.io | sh