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Head-to-head · API Mocking Tools

MockServer vs Hoverfly

  • Updated Oct 2026
  • Both researched from official sources
  • 1 check side by side
Higher score MockServer #2 in API Mocking Tools 9.1/10 Free plan Free plan✓ 0 of 4 features Visit MockServer
Hoverfly #8 in API Mocking Tools 8.3/10 14-day trial Free trial✓ 0 of 4 features Visit Hoverfly

MockServer leads on 1 check, Hoverfly on 0, and 0 are even. Who comes out ahead on the 1 yes/no, price and count check where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scoreMockServer · 9.1/10
  • Free planonly MockServer
  • Free trialonly Hoverfly

MockServer scores higher on our rubric for api mocking tools: 9.1 against 8.3 out of 10; our editors rank them #2 and #8.

MockServer offers free plan; Hoverfly doesn't.

MockServer is the better fit for self-hosted teams needing deep controls. Hoverfly is the better fit for teams replaying captured real traffic.

  • MockServer fits best

    Self-hosted teams needing deep controls

  • Hoverfly fits best

    Teams replaying captured real traffic

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Side by side

Feature MockServer 9.1/10 Visit ↗ Hoverfly 8.3/10 Visit ↗
At a glance
Editor score 9.1 8.3
Ranking #2 in API Mocking Tools #8 in API Mocking Tools
Best for Self-hosted teams needing deep controls Teams replaying captured real traffic
Pricing model Free Paid
Starting price Free plan $10/mo
Free plan ✓ (best) —
Free trial — 14 days
Deployment Self-hosted Cloud, Self-hosted
Platforms Web, Windows, macOS, Linux Web, Windows, macOS, Linux
Support Docs Docs
Built for Solo, Small business, Mid-market, Enterprise Solo, Small business, Mid-market, Enterprise
Features MockServer 0/4 · Hoverfly 0/4
Dynamic responses Not checked yet Not checked yet
OpenAPI import Not checked yet Not checked yet
Mock data generation Not checked yet Not checked yet
Local deployment Not checked yet Not checked yet
Specs
Request matching Not checked yet Not checked yet
Supported protocols Not checked yet Not checked yet
Our review
Pros
  • Mocks HTTP, HTTPS, and gRPC services with proxying
  • Includes recording, replay, verification, and contract testing
  • Supports chaos injection, stateful data, and multiple client options
  • Captures and replays HTTP and HTTPS traffic as reusable simulations
  • Supports proxy, web server, middleware, REST API, and CLI control
  • Simulates latency, failures, rate limits, and mutual TLS traffic
Cons
  • Requires teams to manage the self-hosted deployment
  • Its broad scope may demand more engineering involvement
  • Built-in capabilities are focused on API and service testing
  • No free plan is listed for the hosted offering
  • Advanced simulation behavior starts at the Professional tier
  • Enterprise pricing is custom rather than published
Our verdict

MockServer is a free, open-source tool for teams that need to mock and proxy HTTP, HTTPS, or gRPC services in environments they control. It helps isolate dependencies, create controllable responses, record and replay traffic, verify…

Read the review →

Hoverfly is an open-source API simulation and service virtualization tool for developers and testers. It captures HTTP and HTTPS traffic from external services, stores interactions as reusable simulations, and replays or modifies responses…

Read the review →
  1. MockServerAPI Mocking Tools 9.1Free plan
  2. HoverflyAPI Mocking Tools 8.314-day trial

Strengths and trade-offs

  • MockServer — where it wins

    • Mocks HTTP, HTTPS, and gRPC services with proxying
    • Includes recording, replay, verification, and contract testing
    • Supports chaos injection, stateful data, and multiple client options

    Where it doesn't

    • Requires teams to manage the self-hosted deployment
    • Its broad scope may demand more engineering involvement
    • Built-in capabilities are focused on API and service testing

  • Hoverfly — where it wins

    • Captures and replays HTTP and HTTPS traffic as reusable simulations
    • Supports proxy, web server, middleware, REST API, and CLI control
    • Simulates latency, failures, rate limits, and mutual TLS traffic

    Where it doesn't

    • No free plan is listed for the hosted offering
    • Advanced simulation behavior starts at the Professional tier
    • Enterprise pricing is custom rather than published

More comparisons

All API mocking tools comparisons → · Full ranking →

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update