JSON Schema builder

Visual JSON Schema Builder

Build a JSON Schema by clicking instead of typing. Add fields, pick their types, mark them required, and set formats, patterns, limits and allowed values. Start from scratch or from your own JSON.

How to use it

1. Start from scratch, or from a JSON sample.
2. Add and edit fields, types and rules.
3. Copy the schema, or an example record.

What it does

• No schema syntax to remember
• Formats, patterns, limits and enums
• Example record view

Questions

Which draft does it write?

JSON Schema draft 2020-12.

Is my data uploaded?

No. Bracely runs entirely in your browser, so nothing you paste or open leaves your device.

More JSON tools

Bracely has more than 60 JSON tools in one page. Related ones:

• JSON Schema Generator
• Mock JSON generator
• UUID generator
• JSON hash
• JSON Schema validator
• Edge-case test data
• JSON data dictionary
• JSON Formatter
• JSON Validator
• JSON Viewer
• JSON Repair
• JSON Diff
• JSON to YAML
• JSON to CSV
• jq Playground

Runs entirely in your browser. Nothing you paste is uploaded. Privacy policy