CoderMJLee/MJExtension

Health v2 · maintenance only

Adoption not part of the score

8493 stars · 2132 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-29, confidence not recorded

MJExtension is a lightweight Objective-C framework for converting between JSON/dictionaries and model objects without requiring models to inherit from a base class or modify model files. It supports JSON-to-model and model-to-JSON conversion, model arrays, Core Data models, one-line Coding/SecureCoding, and key mapping customization.

Use cases

• convert responses into objective-c model objects
• serialize models back to dictionaries
• map keys to differently named model properties
• convert arrays into model arrays
• implement nscoding for all model properties with one line of code
• convert between core data models and

When to choose

• you are building an Objective-C or mixed Objective-C/Swift iOS or macOS app
• you want nonintrusive JSON-model conversion without a base model class
• you need fast dictionary-to-model conversion with key mapping and type conversion features

When to avoid

• you are building a pure Swift project where Codable is sufficient
• you need cross-platform JSON serialization outside Apple platforms
• you prefer modern Swift-native serialization like Codable or Swift's new Observation-driven approaches

Facets

library · maturity stable

serialization developer-tools apis mobile-development objective-c -to-model dictionary-to-model cocoapods core-data nonintrusive ios macos swift

Member repositories

For agents

markdown · JSON · MCP: product_card(name="CoderMJLee/MJExtension")