Dashboard API Response Mocker

Local REST API Response Mocker

Design mock API routes, define response headers, status codes, and test endpoints locally inside a simulated browser sandbox.

100% Offline Business

Add Mock Endpoint

Method

Path

Status Code

Content Type

Response Payload (JSON/Text)

Mock Server Config

Import Config

Sandbox Simulated Client

Response Headers & Body:

- - ms

/* Response body will output here */

Active Mocks Directory

No custom mock endpoints registered yet. Create one on the left.

Next Steps & Related Tools

Keep your workflow going with tools that pair well with this one.

Responsive Typography Scaler Generate fluid type scales based on size ratios. Preview responsive sizes and co... JWT Token Decoder & Inspector Paste a JWT token to decode headers, payloads, and signatures. Offline analysis... Aspect Ratio Video Converter Crop or pad videos into square, portrait, or landscape ratios (9:16, 1:1, 16:9).... AI Color Palette & Contrast Hub Generate color palettes from a base seed, evaluate WCAG 2.1 contrast scores, and... Social Media Image Resizer Upload images and resize them instantly to meet official layout dimensions for I... SVG Icon Customizer & Animator Upload or paste any SVG code to adjust stroke widths, fill colors, and apply smo...

Frequently Asked Questions

Quick direct-answer guides about using this utility tool locally and securely.

How can I test mock endpoints?

You can use the Sandbox Simulated Client panel on the right. Enter the request method and path (e.g. GET /users) and click Send Request to receive the mock headers and payloads locally.

Can I intercept active browser fetch requests?

This tool runs inside an offline client sandbox. You can download the configurations JSON schema file to configure external mock servers or load it back anytime.

Do I need an internet connection or a hosted server to use this mock API tool?

No. Unlike Beeceptor or Mocky, which require a live hosted domain to receive requests, this tool runs as an offline client sandbox — no server, no account, no internet needed.

Is there a request limit, like other mock API tools?

No. Since everything runs locally in your browser instead of on a shared server, there's no daily request cap — unlike Beeceptor free tier, which limits you to 50 requests per day.

Does this tool give me a public URL for my mock API?

No — this is a local simulation sandbox, not a hosted mock server. If you need a real internet-accessible endpoint, use the exported configuration with an external mock server instead.

Can I save and reuse my mock endpoint configurations?

Yes. Download your routes, headers, and payloads as a configuration JSON file, then load it back into the sandbox anytime to continue testing without redefining your mocks.

Is my API data or test payloads sent to any external server?

No. All requests, responses, and configurations stay inside your browser session — nothing is transmitted, logged, or stored on a remote server.

Can I use this mock API sandbox on my phone without installing an app?

Yes — open the tool in any mobile browser, send requests from the Simulated Client panel, and everything runs the same as on desktop.