Create local mock APIs instantly, no internet needed
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18 reviews trackedThe Bottom Line
Entry price
Free plan available, paid tiers above
Biggest pro
Local mock APIs
Biggest con
Local only
TL;DR - Mockoon
- Mockoon is a free desktop application for creating mock APIs locally
- It simulates REST APIs with customizable responses for development and testing
- Completely free and open-source
Pricing: Free plan available
Best for: Growing teams
4.5/5 across review platforms
What is Mockoon?
Mockoon creates mock APIs locally. Desktop app for API mocking-simulate backends without internet or signup.
The app runs locally. The setup is fast. The features cover mocking needs.
Developers wanting local API mocks use Mockoon for desktop mock servers.
Available on: Windows, macOS, Linux, Web
Pros & Cons
Pros
- Local mock APIs
- Easy to use
- Open source
- Good features
- Cross-platform
Cons
- Local only
- Learning curve
- Limited to mocking
- UI could improve
- Alternatives exist
Ratings Across the Web
4.5(18 reviews)
Ratings aggregated from independent review platforms. Learn more
Key Features
API mockingLocal serverOpenAPI importResponse rulesLogsOpen source
Pricing Plans
Pricing checked Jul 11, 2026
Most Popular
Open Source
Free
Free
- Mock APIs
- Desktop app
- CLI
Pro
$25/month
Cloud sync
- Cloud sync
- Team sharing
- Enterprise support
Reviews
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4.5/5
Across 18 verified user reviews on G2, Capterra
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Mockoon FAQ
How does Mockoon support API development workflows?
Mockoon allows developers to create local mock APIs instantly, which helps simulate backends without needing an internet connection or signup. This enables front-end and mobile developers to work independently from backend development schedules.
Which teams benefit most from using Mockoon?
Mockoon is ideal for development teams, particularly front-end and mobile developers, who need to test their applications against an API that may not yet be fully developed or is frequently changing. It provides a stable local environment for testing and development.
How does Mockoon compare to Postman for API mocking?
Mockoon focuses specifically on creating local mock APIs instantly, offering a desktop app for simulating backends without internet access. While Postman offers a broader range of API development tools, Mockoon specializes in local, offline API mocking.
What kind of limitations should users be aware of with Mockoon?
Mockoon is designed for local-only API mocking, meaning it does not support cloud-based or shared mock environments. Users should also anticipate a learning curve and be aware that the UI could be improved.
Does Mockoon include a free tier?
Yes, Mockoon is available on a free tier, allowing users to access its core features for creating local mock APIs. Paid plans are also offered for those requiring more extensive usage and additional features.
Can Mockoon be used across different operating systems?
Yes, Mockoon is a cross-platform application. This allows developers to use it on various operating systems to create local mock APIs and simulate backends.
Source: mockoon.com