JSONwidget

An automatic form generator/editor for JSON in Javascript

News:

2005-12-01 - JSONwidget 0.1.0 release. Current version has only been tested with Firefox 1.0.7. Known to be very buggy in IE and Opera, if it works at all. (Heck, it's pretty buggy in Firefox, still). Future versions will have much more testing in other browsers.

About

JSONwidget is a Javascript library implementing a basic HTML form interface for editing arbitrary JSON files. Application designers using this library have the option of providing a schema, limiting the input to a subset of valid JSON compatible with whatever application is actually consuming the JSON, or using a provided permissive schema that allows any valid JSON. The form is dynamically generated using nothing more than a schema and a JSON file as input.

The library is licensed under a BSD-style license, making the licensing very flexible for many different applications.

Demos

Note: these demos only work well in Firefox (as of this writing on 2005-12-01):

Election Configuration Editor - this was the original application I wrote this for (to be integrated into Electowidget). It allows for flexible editing of a rather complex configuration file. See also the view with schema editing enabled.
Freeform JSON editor - any valid JSON file (sans comments) can be modified
Create schema by example - a freeform JSON editor with the ability to generate a schema from the source

Other demos are available via selection box at the bottom of the examples above.

Acknowledgements

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This assembles a lot of code and ideas from other sources.

json.js - a modified, outdated version of Douglas Crockford's library , which allows for nicely formated JSON. My apologies to Mr. Crockford for the butchered, forked version - I plan to work on a cleaner patch for later submission.
Schema language inspired by and mostly compatible with the JSON version of Kwalify by Makoto Kuwata.
JSON.php by Michal Migurski and others. This is provided as originally distributed.
I'm certain there are others.

Download

A tarball with everything used to create this demo is below:

JSONwidget 0.1.0