Professional API Testing
for Modern Developers

Test REST, GraphQL, WebSocket, and gRPC APIs from one beautiful interface.
Generate mock data, save collections, and automate your workflow.

4 Protocols
15+ Utilities
7 API Sites

Test APIs Across the MockFactory Ecosystem

Everything You Need to Build Better APIs

One platform, every protocol, unlimited possibilities

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Multi-Protocol Support

Test REST, GraphQL, WebSocket, and gRPC APIs from a single interface. No more switching between tools.

  • REST API with full HTTP method support
  • GraphQL with schema introspection
  • Real-time WebSocket connections
  • gRPC with streaming support
PREMIUM
๐Ÿญ

MockLib Data Generator

Generate realistic test data with pre-built templates. Create 1-100 objects instantly for load testing.

  • 8 professional templates (users, products, orders)
  • Bulk generation (1-100 objects)
  • Custom template creation
  • One-click insert to request body
๐ŸŽจ

15+ Utility Libraries

Built-in tools eliminate context switching and speed up your development workflow.

  • JSON validator & formatter
  • JWT decoder & inspector
  • Base64/URL encoders
  • Hash generators (SHA, MD5)
  • Regex tester, color converter, and more
PRO
๐Ÿงช

Advanced Testing

Automate your API testing with pre/post scripts and Chai-style assertions.

  • Pre-request scripts for dynamic data
  • Post-response test assertions
  • Visual pass/fail results
  • Environment variables
๐Ÿ“š

Request Collections

Save, organize, and reuse your API requests. Share collections with your team.

  • Unlimited saved requests
  • One-click load
  • Export/import as JSON
  • Team collaboration (Enterprise)
๐Ÿ”

Enterprise Security

Built-in SSO, API key management, and usage tracking for peace of mind.

  • Authentik SSO integration
  • API key management per site
  • Credit-based usage limits
  • Audit logs & tracking

Choose Your Plan

Start free, upgrade when you need more power

Free

$0 /month
  • โœ… REST API Testing
  • โœ… 5 utilities per day
  • โœ… 10 mock generations/day
  • โœ… 3 saved collections
  • โŒ Advanced testing
  • โŒ WebSocket/GraphQL
  • โŒ Team features
Get Started

Basic

$9 /month
  • โœ… Everything in Free
  • โœ… Unlimited utilities
  • โœ… 100 mocks per day
  • โœ… 50 saved collections
  • โœ… Email support
  • โŒ Advanced testing
  • โŒ WebSocket/GraphQL
Start Trial

Enterprise

$99 /month
  • โœ… Everything in Professional
  • โœ… gRPC support
  • โœ… Team workspaces (25 users)
  • โœ… SSO integration
  • โœ… Custom branding
  • โœ… SLA guarantee
  • โœ… Dedicated support
Contact Sales

Why Choose API Playground?

vs Postman

  • โœ… Fully web-based, no download
  • โœ… Faster, cleaner interface
  • โœ… Built-in mock data generation
  • โœ… MockFactory ecosystem integration

vs Insomnia

  • โœ… Better GraphQL support
  • โœ… Real-time WebSocket testing
  • โœ… Professional mock templates
  • โœ… Enterprise SSO ready

vs Hoppscotch

  • โœ… Enterprise SSO (Authentik)
  • โœ… Team collaboration features
  • โœ… Advanced testing framework
  • โœ… Premium mock data library

Ready to Build Better APIs?

Join developers who test smarter, not harder

Launch Playground - It's Free โ†’