Mocky alternative: Mockfly vs Mocky.io
Mocky made one thing very easy: paste a JSON body, pick a status code, get a URL. If that is all you need and the service is up, it is hard to beat. This page is for the moment you need a second endpoint, a different answer for a different request, or a teammate to edit the mock.
What Mocky is
Mocky is a free, no-signup generator of static mock URLs. You choose an HTTP status, a content type, optional headers and a body, and it gives you a link under run.mocky.io. Every mock is independent: there is no project, no base URL shared between mocks, no request matching, and the body is exactly what you typed, every time.
That is perfect for a Stack Overflow answer or a five-minute prototype. It falls short as soon as an app needs a handful of related endpoints, a 404 for a missing id, a list that looks different on every request, or a QA engineer who wants to change a response without asking you.
What changes with Mockfly
- A project instead of loose URLs. All endpoints share a base URL, environments and request logs, and the documentation is generated for you.
- Several responses per endpoint. Return 200 with data, 404 for an unknown id or 500 to test error handling, and pick between them with rules on query params, headers or the body.
- Data that changes. Faker.js templates and AI-generated JSON give you realistic lists that differ on every request instead of the same three items forever.
- Dynamic routes.
/users/:idmatches any id and can echo it back in the response body. - Teamwork. Invite people to the project. On Team, five seats and one invoice.
- Files and WebSockets. Serve a real PDF or CSV, or mock a WebSocket endpoint with rules and broadcasting.
Pricing
| Plan | Mockfly | Mocky |
|---|---|---|
| Free | 500 requests/day, 1 project, 4 endpoints, 2 responses each, no credit card | Free, no signup, static mocks only |
| Individual | Pro: 15€/month or 150€/year, unlimited requests, projects and endpoints | Not offered |
| Team | 49€/month with 5 seats, 9€ per extra seat | Not offered |
Features comparison
| Feature | Mockfly | Mocky |
|---|---|---|
| Custom status, headers and body | ✅ | ✅ |
| Response delay | ✅ | ✅ |
| Several endpoints under one base URL | ✅ | ❌ |
| Dynamic routes (/users/:id) | ✅ | ❌ |
| Conditional responses with rules | ✅ | ❌ |
| Faker.js and AI-generated data | ✅ | ❌ |
| Request logs | ✅ | ❌ |
| Team collaboration | ✅ | ❌ |
| Import OpenAPI, Postman and HAR | ✅ | ❌ |
| No signup needed | Only for the public API Hub | ✅ |
When Mocky is enough
You need one URL that always returns the same thing, for a few hours, and nobody else will touch it. If the service is up, use it. The moment you write a second URL, or type a fake user list by hand, you are better off with a project: sign up for free at app.mockfly.dev, or call the API Hub if you only need ready-made fake data.
Frequently asked questions
Is Mocky still working?
At the time of writing (September 2026) mocky.io does not resolve and designer.mocky.io returns an error, so we could not create or call a mock. Existing mocks may or may not still be served; do not rely on them for a demo without checking first.
Can I get a single mock URL in Mockfly, like Mocky?
Yes. Create a project, add one endpoint with the status, headers and body you want, and call https://api.mockfly.dev/mocks/<your-slug>/<path>. The difference is that the URL belongs to a project you can grow: more endpoints, rules, logs and teammates.
Do I need an account?
For your own mocks, yes, a free one. If you only need a fake REST API to call from a tutorial or a code sample, the Mockfly API Hub is open with no signup and no key: https://api.mockfly.dev/hub/users, /hub/products, /hub/posts and more.
Does Mockfly support delays and custom status codes?
Yes. Every response has its own status code and headers, and every endpoint has a configurable delay. You can also return different responses depending on the request, which Mocky never supported.