Dadroit JSON Viewer
Jayson
ExtendsClass JSON Generator
MockTurtle.net
Fullstack Vue
Mockaroo
DevToys
Create mock and sample JSON using a powerful template syntax

agentskills.codes
SkillDepot
Skills.sh
Agent Skills Directory
AgentSkillHub.io
Skillkit
AgentSkillsHub.top
Discover, buy, and install production-ready AI agent skills for Claude Code, Codex, and more. Upload yours and get paid. One-command install.

Which is more popular?
Based on our record, JSON Generator seems to be more popular. It has been mentioned 9 times since March 2021.
Website, pricing, platforms and company facts side by side.
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JSO
JSON Generator
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| Website | json-generator.com | skillhq.dev |
| Pricing | — | |
| Company | — | Startup from Slovakia · 2026 |
| Listed in |
In their own words, as submitted to SaaSHub.

No description of JSON Generator yet.
SkillHQ is the first paid marketplace for AI agent skills. Developers buy production-ready Claude Code SKILL.md packages and Custom GPT configurations, then install them with a single CLI command. Skill creators publish their work and keep 85% of every sale. The problem The AI tooling ecosystem...
What each product offers, as listed by its team.

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

As answered by people managing JSON Generator and SkillHQ.dev.
SkillHQ.dev's answer:
SkillHQ is the only paid marketplace for AI agent skills. Every competitor — AgentSkill.sh, Skills.sh, SkillsMP, ClawHub — is a free directory with no quality gate. Anyone can publish anything. SkillHQ validates every skill before listing (structure, content, and security checks), protects creators with invisible fingerprinting and SimHash piracy detection, and lets buyers install with a single CLI command. No other platform combines quality validation, one-command install, anti-piracy, and built-in creator monetization.
SkillHQ.dev's answer:
If you're buying skills: Free directories list 100,000+ skills with zero validation. That sounds like a lot until you spend three hours finding one that actually works. SkillHQ skills pass automated checks before listing — you're paying for the guarantee that what you install is production-ready. Run "skillhq install name" and it drops directly into your project. No manual copying, no debugging someone else's broken prompt.
If you're selling skills: There's no other platform where you can monetize AI skills with built-in payments. ClawHub creators reportedly earn $600–$20,000/month selling premium versions off-platform through Gumroad — proving the demand exists. SkillHQ closes that loop natively: 85% revenue share, zero listing fees, zero monthly minimums, Stripe Connect payouts to 45+ countries, and anti-piracy protection on every download.
SkillHQ.dev's answer:
Developers and small dev teams building with AI agents — specifically Claude Code and Custom GPTs. These are practitioners, not researchers. They want tools that work now, not experiments. On the buyer side, they're tired of filtering through unvalidated GitHub repos and free directories to find skills that actually do what they claim. On the seller side, they've built effective AI skills and want a real revenue path beyond open-source and GitHub stars. Both sides are technical, self-serve, and allergic to unnecessary friction.
SkillHQ.dev's answer:
SkillHQ was born from a simple frustration: the AI skills ecosystem had no quality standard and no economics. Thousands of developers were building powerful Claude Code skills and Custom GPT configurations, then sharing them for free on GitHub with no feedback loop — no validation, no versioning, no way to know if what you found would actually work. Meanwhile, the best skill creators had no way to earn from their work.
We built SkillHQ to fix both sides. Think of it as npm for AI skills — a marketplace where every package is validated before listing, installable with one command, and worth paying for. Creators get 85% of every sale with zero upfront costs. Buyers get skills they can trust. The model is simple: when creators can earn, they build better skills. When buyers can trust what they install, they buy more. That flywheel is what makes a marketplace work.
Share your experience with using JSON Generator and SkillHQ.dev. For example, how are they different and which one is better?
Recommendations tracked on public social media and blogs since March 2021.

JSON Generator: also generates mock data, but for JSON specifically. It's a bit more complex, but it allows for tailor-made results. - Source: dev.to / almost 3 years ago
Is there a generator for all the JSON generators out there? https://json-generator.com/. - Source: Hacker News / about 3 years ago
So I generated a random JSON file and tried parsing it. It doesn’t error, but whenever I do a println(root.Object().Value().String()), I get a panic: wrong type. If I do a println(root.Object().Present()), it prints false. So seems like... Source: over 3 years ago
Tracking SkillHQ.dev since Apr 2026.
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