Angular's ecosystem has specific requirements — reactive forms, TypeScript, zone.js, AOT compilation. These 6 libraries actually meet them.
The libraries
1. ngx-json-editor
Wrapper around the popular JSON Editor library. Full tree/code/form/text modes.
- Good Angular CLI integration
- Two-way binding support
2. Monaco Editor (via ngx-monaco-editor)
VS Code quality inside Angular. Schema validation, autocomplete, diff view.
- Heavy but powerful — lazy load it
3. Angular JSON Schema Form (@ajsf/core)
Generates forms from JSON Schema. Integrates with Angular reactive forms.
- Best for: dynamic admin forms
4. ngx-codemirror
CodeMirror 5 wrapper for Angular. Lightweight, customizable.
5. @ng-select/ng-select + custom
Not a dedicated JSON editor but works for simple key-value editing scenarios.
6. react-jsonschema-form port
Community Angular port — handles complex schemas but maintenance varies.
What to check before picking
- ✅ ControlValueAccessor support (reactive forms)
- ✅ Zone.js compatibility
- ✅ AOT compilation support
- ✅ Bundle impact (run
ng build --stats-jsonto check)
Full guide with Angular 15+ examples: 6 Best JSON Editor Libraries for Angular
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