
Mockaroo
JSON Generator
MockTurtle.net
ExtendsClass's JSON generator allows to generate random JSON data from a template.

Explore Vibe Coding
VibeScan
vvSearch
Marketplace for verified AI Development Systems — battle-tested rules for Cursor, Windsurf, Claude Code, and GitHub Copilot.
Which is more popular?
Website, pricing, platforms and company facts side by side.
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| Website | extendsclass.com | vyze.dev |
| Pricing | ||
| Company | 2019 | Startup from the Czech Republic |
| Listed in |
In their own words, as submitted to SaaSHub.


This free online tool allows to generate JSON dataset. You can generate multiple JSON files exported to a zip archive. No limits. No registration.
Vyze is a developer marketplace and CLI deployment engine (npx vyze) for verified AI Development Systems. It provides framework-tested .cursorrules, CLAUDE.md files, .windsurfrules, AGENTS.md instructions, and full-stack developer bundles. Vyze eliminates AI context hallucinations by locking LLM...
What each product offers, as listed by its team.


Possible disadvantages
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How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing ExtendsClass JSON Generator and Vyze.dev.
Vyze.dev's answer:
Next.js 16, TypeScript, React 19, Supabase, Node.js CLI, Tailwind CSS, Clerk, and Stripe Connect.
Vyze.dev's answer:
Vyze is the first terminal CLI package manager (npx vyze) and marketplace for verified AI Development Systems. Instead of copy-pasting unverified text snippets from web forms, developers deploy framework-tested .cursorrules, CLAUDE.md files, and agent workflows in one terminal command. It also includes an automated AST security scanner engine that detects prompt injection vulnerabilities before deployment.
Vyze.dev's answer:
Vyze treats AI context as engineering code rather than static prompt text. Unlike static web directories or unverified GitHub gists, Vyze automatically compiles and exports rules into native formats for Cursor, Claude Code, and Windsurf simultaneously. It scans every pack for prompt injection security risks and gives creators a 90% revenue split to ensure long-term maintenance of rules.
Vyze.dev's answer:
Software engineers, AI prompt engineers, software architects, and tech leads who build applications using AI coding assistants like Cursor, Claude Code, Windsurf, and GitHub Copilot.
Vyze.dev's answer:
We spent dozens of hours tuning custom .cursorrules and CLAUDE.md files for Next.js 15, FastAPI, and Supabase, only to watch AI models hallucinate outdated code whenever frameworks updated. Realizing there was no standardized package manager or verified marketplace for AI editor rules, we built Vyze to provide deterministic, security-scanned context rules for developer teams.
Share your experience with using ExtendsClass JSON Generator and Vyze.dev. For example, how are they different and which one is better?
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