Ajv vs JSON Forms
Ajv
ajv.js.orgJSON Forms
jsonforms.ioSide by side
| Figure | Ajv | JSON Forms |
|---|---|---|
| Price from | Free | Free |
| Free plan | Yes | Yes |
| Free trial | — | — |
| Open source | — | — |
| Web | Yes | Yes |
| Self-hosted | Yes | Yes |
| Plans published | 1 | 2 |
| Spec score · JSON Tools | 8.0 (#10) | 7.4 (#21) |
| License | The project is distributed under the MIT License, which permits use, copying, modification, distribution, sublicensing, and sale subject to its terms. | The JSON Forms project is licensed under the MIT License. |
| What it does | Ajv validates JSON data against declarative JSON Schema or JSON Type Definition schemas by compiling them into JavaScript code. | JSON Forms is a declarative framework for building form-based web UIs to enter, modify, and view data, usually embedded within an application. |
Plans
In their own words
JSON Forms
JSON Forms is a free, MIT-licensed declarative framework for embedding form-based web interfaces in applications. Developers define data with a JSON Schema and describe presentation with a UI Schema. The framework supplies data binding, input validation, and rule-based visibility. Bindings are available for React, Angular, and Vue, with React Material and vanilla renderers, Angular Material renderers, and Vue vanilla and Vuetify sets. Developers can add or replace renderers or build bindings for another framework through the core package. Validation uses AJV and can be customized by passing a custom AJV instance to the standalone component. The listed release is version 3.8.0, adding Angular 22 support. The project offers free community support through a public channel for basic topics, while professional support includes guaranteed response times, code examples, advanced topics, private NDA channels, and feature prioritization. Vue and Vuetify integrations are marked preview.