Create Mock APIs in Minutes,
Not Hours
Build dynamic API models with drag-and-drop, generate realistic mock data with relationships, and test your applications faster than ever before.
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Everything you need to mock APIs
Build, test, and iterate faster with powerful features designed for developers
Visual Model Builder
Create complex data models with our intuitive drag-and-drop interface. Define fields, types, and validation rules without writing code.
Smart Relationships
Define one-to-one, one-to-many, and many-to-many relationships with visual UML diagrams. See your entire data structure at a glance.
Instant REST APIs
Generate fully functional REST APIs with realistic mock data in seconds. Complete with GET, POST, PUT, DELETE endpoints and pagination.
Realistic Mock Data
Generate realistic data with Faker.js. Choose between consistent or random data modes, with support for 11+ field types including references.
OpenAPI Docs
Auto-generated OpenAPI 3.0 specifications with interactive documentation. Test your endpoints directly in the browser with Swagger UI.
API Authentication
Secure your mock APIs with API keys. Configure CORS settings and rate limiting. Perfect for frontend development and testing.
Perfect for every stage of development
From prototyping to production-ready backends
Rapid Prototyping
Build and iterate on ideas quickly. Test your frontend before the backend is ready.
API Testing
Test edge cases with realistic data scenarios. Simulate errors and latency.
Team Collaboration
Share mock APIs with your team. Work in parallel without waiting for backend dev.
Pre-built templates to get started instantly
Choose from 8+ production-ready templates for common use cases
E-Commerce
Products, customers, orders, and more
Social Media
Users, posts, comments, and likes
Blog Platform
Authors, posts, tags, and comments
SaaS Platform
Organizations, users, and billing
Ready to accelerate your development?
Join thousands of developers building better applications with apibld. Start your free trial today.
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