I just launched a new feature for Format JSON Online — an AI JSON Generator that can turn plain English into valid JSON, and then instantly publish it as a mock REST API.
Here’s what it can do:
⚡ How it works:
1️⃣ Describe your data in plain English — e.g., “An array of 3 users with name, email, and createdAt date”.
2️⃣ AI generates clean, valid JSON instantly.
3️⃣ Edit, validate, and publish it as a live, shareable API endpoint.
✨ Key Features:
AI-powered JSON creation from prompts.
Instant mock API hosting with no backend required.
JSON validation to avoid syntax errors.
Supports large & complex JSON structures.
Bonus tools: JSON ↔ CSV, JSON ↔ XML, cURL → JSON.
New! Create Your Own API with AI + your own data.
New! Chrome extension to format/convert JSON anywhere.
💡 Popular use cases:
Frontend prototypes without waiting for backend APIs.
API contract demos for teams & clients.
Generating realistic test data for QA & automation.
Learning JSON structures & syntax quickly.
If you’ve ever wasted time typing brackets or debugging a missing comma, this will save you hours.
Would love feedback from other devs, especially on the AI generation accuracy.
👉 Try it here: https://formatjsononline.com/ai-json-generator