# Mocklet

> Record API traffic in Firefox DevTools or import HAR files, validate endpoints, tune matching rules, and create hosted mocks on Mocklet.

Canonical page: [https://chrome-stats.com/d/mocklet](https://chrome-stats.com/d/mocklet)

## Overview

- **ID:** `mocklet`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** Nikolai
- **Category:** web-development,privacy-security
- **Daily users:** 4
- **Version:** 0.4.2
- **Last updated:** 2026-05-04
- **First published:** 2026-03-13
- **Size:** 606 KB
- **Data as of:** 2026-09-06
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/mocklet/)
- **Website:** [https://mocklet.io](https://mocklet.io/)
- **Privacy policy:** [https://addons.mozilla.org/firefox/addon/mocklet/privacy/](https://addons.mozilla.org/firefox/addon/mocklet/privacy/)

## Description

Mocklet adds a panel to Firefox DevTools for turning recorded network traffic or imported HAR files into hosted HTTP mocks.

Record requests directly in DevTools or upload a HAR file, validate captured endpoints before deployment, tune matching rules for query parameters, headers, and body fields,
  filter entries by resource type, and create hosted mock servers with a configurable TTL. You can also review and delete mocks from the panel. A Mocklet sign-in is required.

How to find the extension
1. Open any web page
2. Press F12 or right-click and select "Inspect"
3. Open the "Mocklet" tab

## Rankings

- #48,800 — Overall
- #28 — mock

## Permissions and access

### Permissions

- `storage`
- `scripting`

### Host permissions

- `https://app.mocklet.io/*`
- `https://mocklet.io/*`

### Content script matches

- `app.mocklet.io`
- `mocklet.io`

## Safety

- **Risk impact:** Moderate risk impact
- **Risk likelihood:** Moderate risk likelihood

### Analysis details

- Injects scripts into web pages, which may alter or extract site contents, resulting in a substantial risk.
- This extension has low user count. Unpopular extensions may not be stable or safe.

> Some risk analysis details are omitted from this free response. [Upgrade to view the full analysis](https://chrome-stats.com/pricing).

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Source: [Chrome-Stats](https://chrome-stats.com/d/mocklet)