Webhook capture, API mocking, request replay and email testing — without switching between four different tools.
Each of these has a good single-purpose tool. The cost shows up where they meet — replaying a captured payload into a mock, or asserting that an email actually arrived.
Stop juggling a capture service, a mocking service, an email sandbox and a pile of replay scripts. MockLane combines webhook capture, mock API building, request replay and email testing in a single tool.
Capture all outgoing emails from your app during development. Point your SMTP config to MockLane and preview HTML emails, inspect headers, and download attachments — without ever emailing real customers.
Generate realistic fake data with built-in templates like {{faker.name}}, {{faker.email}}, {{faker.uuid}} — 121 generators in total, plus direct access to any Faker method. No plugins, no setup — it just works.
Share workspaces with your team, assign roles (viewer, editor, admin), and collaborate on mock APIs and webhook endpoints. Everyone sees the same data in real time.
Drop in your OpenAPI/Swagger spec and MockLane auto-generates mock endpoints with realistic responses. Go from spec to working mock in seconds, not hours.
Captured a webhook but your server was down? Replay any request with one click. Modify headers and body before resending to test edge cases.
Capture webhooks, mock APIs, replay requests, and test emails from a single dashboard — instead of stitching together three separate tools and tabs.
Every one of these is solvable on its own. The cost is that they end up in different products, with different logins, and nothing joining them together.
| What you need | Usually means | MockLane |
|---|---|---|
| Capture and inspect incoming webhooks | A webhook capture service | |
| Stand up mock API endpoints | A separate API mocking service | |
| Receive and read test emails | An email sandbox provider | |
| Edit a captured request and send it again | Postman collections or your own scripts | |
| Drive a whole flow end to end and assert on it | Glue code in your CI, maintained by you | |
| One shared workspace for the team | Three accounts, three bills, three access lists |
Specialists go deeper than we do. MockLane covers the whole development workflow rather than winning any single category.
If you need spam scoring, HTML and CSS client previews, deliverability checks or forwarding, a dedicated email testing platform such as Mailtrap goes much further than a sandbox inbox.
If your mocks must run on your own machine or inside your own network with no hosted service involved, an open-source local-first mock server such as Mockoon or WireMock is the right tool.
If all you want is to eyeball one payload and never think about it again, MockLane will give you a capture URL with no account — and so will a free scratchpad service. The reason to sign up is wanting that capture to still be there tomorrow, in a workspace, replayable, and chainable into a test.
Large-scale service virtualization, contract testing across many teams and heavy compliance requirements are their own product category, and MockLane is not one.
Point a provider at a MockLane URL and see the payload land. Free plan, no card, nothing to install.