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JSON Editor
What it is
JSON Editor is a JavaScript library that turns a JSON Schema into an HTML form. It supports JSON Schema versions 3 and 4, along with some hyper-schema features, and provides a validation method for checking the current form value or another supplied value against its schema. Themes include HTML, Bootstrap 3, 4, and 5, Spectre, Tailwind, and barebones. Optional integrations include JavaScript template engines, CSS frameworks, icon libraries, and editors such as Ace, SimpleMDE, and SCEditor. The library can be installed with npm, loaded from a CDN, or downloaded for local use. It has no dependencies and requires a modern browser; Chrome and Firefox are listed as tested browsers. External schema references are supported, although cross-origin requests need suitable HTTP headers or supplied references. JSON Editor is free under the MIT License, subject to its terms. The project is in maintenance mode, with active development moved to Jedison; maintainers continue to review community pull requests and address critical bugs and security issues. DOMPurify is an optional integration for sanitizing HTML used in titles, headers, and descriptions.
For and against
For
- Generates HTML forms from JSON Schema.
- Validates current or supplied values against a schema.
- Offers several themes, including Bootstrap and Tailwind.
- Can be installed through npm or loaded from a CDN.
Against
- Requires a modern browser.
- Cross-origin schema requests need suitable headers or supplied references.
- Active development has moved to Jedison.
The verdict
JSON Editor offers schema-based form generation with validation, multiple themes, and optional integrations. It remains available under the MIT License, but the project is in maintenance mode.
Who it suits
It suits developers building web forms from JSON Schemas who need validation and theme options. Teams adopting it should note that active development has moved to Jedison.
Plans and prices
JSON Editor
MIT-licensed JavaScript library · requires a modern browser
Read 5 Oct 2026 · github.com
On the record
- Distribution
- The library can be installed with npm, loaded from a CDN, or downloaded for local use.github.com · read 5 Oct 2026
- External schemas
- The editor supports external schema references, with cross-origin requests requiring suitable HTTP headers or supplied references.github.com · read 5 Oct 2026
- Integrations
- Optional integrations include JavaScript template engines, CSS frameworks, icon libraries, and editors such as Ace, SimpleMDE, and SCEditor.github.com · read 5 Oct 2026
- License
- The project is released under the MIT License, which permits use, modification, distribution, and sale subject to its terms.github.com · read 5 Oct 2026
- Maintenance
- The repository says JSON Editor is in maintenance mode, with active development moved to Jedison, while critical bugs and security issues remain in scope.github.com · read 5 Oct 2026
- Purpose
- JSON Editor generates an HTML form from a JSON Schema.github.com · read 5 Oct 2026
- Requirements
- The project says it has no dependencies and requires a modern browser; Chrome and Firefox are listed as tested browsers.github.com · read 5 Oct 2026
- Schema support
- It supports JSON Schema versions 3 and 4, plus some hyper-schema features.github.com · read 5 Oct 2026
- Security
- The README lists DOMPurify as an optional integration for sanitizing HTML used in titles, headers, and descriptions.github.com · read 5 Oct 2026
- Support
- The maintainers state that they accept and review community pull requests and address critical bugs and security issues.github.com · read 5 Oct 2026
- Themes
- Supported themes include HTML, Bootstrap 3, 4 and 5, Spectre, Tailwind, and barebones.github.com · read 5 Oct 2026
- Validation
- The editor provides a validate method that checks the current or supplied value against its schema.github.com · read 5 Oct 2026
