Built because I needed it myself
I got tired of writing the same fake user objects by hand every time I started a new project. Copy-pasting from Stack Overflow answers, tweaking lorem ipsum, inventing fake email addresses — it was the least interesting part of building anything.
So I built JSONForge: a fast, in-browser tool that generates realistic dummy JSON (and CSV and SQL) without asking for an account, a credit card, or your email. You open it, pick your fields, hit generate, done.
It's a solo project. No team, no VC funding, no roadmap deck. Just something I use myself and decided to put online in case it saves other developers the same headache.
what it does
- Generate JSON, CSV, or SQL from a custom field schema
- Up to 1 million records in one shot — useful for load testing
- Save and reuse schemas across sessions
- Runs entirely in your browser — nothing is sent to a server
- No signup, no rate limits, no watermarks
why it's free
Honestly? Because the tools I reach for when I'm in the middle of building something shouldn't have a paywall in front of them. Developer tools work best when they're just there — frictionless. If you find it useful, that's enough.
what's coming
A few things I'm actively working on: more field types (nested objects, enums, conditional fields), a shareable schema URL so you can send a schema to a teammate, and better SQL dialect support. If there's something specific you need, feel free to reach out.
get in touch
Found a bug? Have a feature idea? Just want to say the tool saved you 20 minutes? I'm reachable via the links below. I read everything, even if replies take a while.