Kivel vs Mockoon
Kivel creates a small hosted mock API that expires. Mockoon is a dedicated, open source mocking environment that runs as a desktop application or headless through its CLI and Docker image.
Why teams pick Kivel.
Choose Kivel for a small disposable endpoint with predictable bodies, status codes, and delays that other people or CI can reach without installing anything, especially when you also need webhook inspection or file sharing.
- You need a reachable mock URL without installing anything
- A teammate or CI job must call the mock from another machine
- The mock has a few static routes and should expire on its own
- You also want a webhook inbox or file share in the same session
Choose Mockoon for richer mock design and reusable environments, including Faker.js templating, response rules, CRUD routes, recording, proxying, and running mocks locally or through its CLI.
- You want mocks that run locally on your machine
- Responses need the full Faker.js library or reusable local environments
- You need mocks that run offline
- Mock definitions should live in your repository and run in CI
Every Kivel plan includes webhook and email inboxes, mock APIs and MCP servers, files, memory, monitors and approvals for AI agents over one MCP connection, plus 174 tools in all. Free to start; Pro is $2 a month.
The differences that matter.
| Area | Kivel | Mockoon |
|---|---|---|
| Authoring | Browser editor for routes, methods, statuses, bodies, headers, and delays. | Desktop mock editor; the CLI runs the same mock definitions headless. |
| Response behavior | Up to 20 routes with request-value and fake-data templates, conditions, random failure rates and a live call log, plus one seeded CRUD collection with record editing and reset. | Templating helpers with Faker.js data, multiple responses with rules, CRUD routes, data buckets, and callbacks. |
| OpenAPI | Converts an OpenAPI 3.x JSON document into a static mock of up to 20 routes. | Imports and exports OpenAPI specifications. |
| Where it runs | Hosted on the Kivel installation with a public URL and private access by default. | Locally in the desktop app, or self-hosted with the CLI and Docker. Cloud deployments are a Pro feature. |
| Reuse | Resources start at one hour; configurations can be exported and imported as JSON. | Mock data files can be stored in a repository and reused with the CLI. |
Good to know.
Kivel fake data covers about twenty common fields rather than the full Faker.js library, proxy and record is a Pro feature limited to 20 recorded routes. WebSocket mocks support echo and scripted replies. OpenAPI import accepts JSON only, with local references and up to 20 routes.
You can start without an account, and a free account keeps resources for up to seven days. See the published allowances for storage, rate limits and retention.
Frequently asked questions
Is Mockoon free?
Yes, Mockoon describes its desktop application as free and open source, with no account required. Cloud features such as a web version and team collaboration are part of Mockoon Pro.
Does Mockoon need a server or account?
No. Mockoon’s desktop app runs mocks locally without an account, and the CLI or Docker image can self-host them.
What is an online alternative to Mockoon?
Kivel creates a hosted mock API in the browser with a public HTTPS URL, private by default. It suits small, static, short-lived mocks rather than full mock environments.
Can Kivel import an OpenAPI file?
Yes, its OpenAPI to mock tool converts an OpenAPI 3.x JSON document into a static mock configuration of up to 20 routes. YAML input, remote references, and stateful behavior are not supported.
Check the sources.
Reviewed on against official documentation. Features can change. This page is written by Kivel and is not an endorsement by Mockoon.