Pasindu Ishan

New Mock Data Generator just dropped on JSON Dev Tools!

✅ Realistic fake data (names, emails, addresses — all consistent)
✅ Generate from sample JSON or field picker
✅ Export JSON / CSV / NDJSON
✅ 100% browser-based & private

Perfect for API testing & demos 🔥

Try it: jsondevtools.org/mock-data-generator.html?mode=…

#JSON #WebDev #DeveloperTools

I got tired of writing JSON Schema by hand, so I built a tool that generates it from any JSON sample

Paste any JSON → get a draft-07 schema with inferred types, required fields, nested objects, and format hints (email, uuid, date-time, uri) — all in your browser, nothing sent to a server.

One thing I added that I haven't seen elsewhere: a "Smart Mode" for null fields. Most generators just output {"type": "null"} when a field is null, which rejects everything once your API sends a real value. Smart Mode outputs a union type with a refine hint instead, so your schema doesn't break immediately.

There's also a type-mapping table for Kafka Avro if you're bridging formats.

Would love feedback — what would make this more useful for your workflow?

🔗 jsondevtools.org/json-schema-generator.ht

Tired of switching between 10 different tabs for basic dev tasks? 🛠️

I built JSON Dev Tools — 20+ free browser-based utilities for developers, all in one place:

✅ Format & validate JSON

✅ JSON → CSV / YAML conversion

✅ JWT decoder ✅ JSON diff, minifier, schema generator

✅ URL encoder, Base64, timestamps & more

Zero signup. Zero server uploads. Your data never leaves your browser.

Whether you're debugging an API response, prepping configs for Kubernetes, or decoding a JWT — it's all one click away.

👉 jsondevtools.org