Life & fun · alternatives · 2026
24 alternatives to Interceptor – mock AJAX requests at the browser level
Introducing Interceptor - A browser extension that mocks backend responses and how to use it.
Interceptor is a browser extension that intercepts AJAX requests and returns mock data instead of responses from the server. It lets frontend developers define custom responses for specific URLs, allowing them to work… Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Interceptor – mock AJAX requests at the browser level launched in 2018; newer entries below may have overtaken it.
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Beautiful, cross-platform & open-source tools for debugging, testing and building with HTTP(S), on Windows, Linux & Mac.
2019 · httptoolkit.tech · its alternatives →
- 2IR
Sharing an internal tool that accelerated my development work 10-fold, especially with API debugging. Thought fellow developers here might find it useful. As a developer, I often have trouble reproducing errors at the client end. https://intercept.rest lets me debug and monitor API requests and responses. It is similar to the Network tab in Chrome Developer Tools but works for any API: mobile apps, webhooks, frontend etc. After I shared it with a close circle of friends, they found it incredibly useful and even found new use cases, I never imagined. Been a long time lurker here and…
2018 · its alternatives →
- 3
Intercept, modify, mock and test HTTP requests with ease
May 2026 · chromewebstore.google.com · its alternatives →
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Intercept, modify, and replay HTTP request son the fly
Feb 2026 · chromewebstore.google.com · its alternatives →
- 5
Postman companion to sync cookies & capture network requests
2020 · chromewebstore.google.com · its alternatives →
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HTTP Mock▲22Intercept, debug & mock HTTP(S) with zero setup
2019 · httptoolkit.com · its alternatives →
- 8
2022 · chrome.google.com · its alternatives →
- 9
Hey HN, I recently built an open-source HTTP interceptor called Relay, which works as a Chrome extension for capturing, modifying, and replaying HTTP requests directly in your browser — no account needed. How it works: Relay lets you capture requests as they happen, modify parameters, headers, or body content, and replay them on the fly. You can customize or debug network requests quickly without needing an external tool or complex setup. Key features: - Simple setup: Install the extension and start a session to capture requests. You can filter by URLs and methods. -Request modification:…
2024 · chromewebstore.google.com · its alternatives →
- 10
Mockphine▲87Mock blocked APIs, passthrough ready routes, see live source
Mar 2026 · mockphine.com · its alternatives →
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Mockman▲6Custom AJAX response ( Postman for Frontend)
2020 · chromewebstore.google.com · its alternatives →
- 13
Handle Extension▲141Refine UI in the browser, feed changes to your coding agent
Apr 2026 · gethandle.ai · its alternatives →
- 14MO
2019 · mockit.netlify.com · its alternatives →
- 15
Hurl, run and test HTTP requests with plain text and curl. Hurl can run fast automated integration tests.
2021 · hurl.dev · its alternatives →
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Mockoon is the easiest and quickest way to run mock REST API servers. No remote deployment, no account required, free, open source and cross-platform.
2017 · mockoon.com · its alternatives →
- 18CM
2023 · butlermock.online · its alternatives →
- 19TP
2011 · httpposttool.com · its alternatives →
- 20
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A chrome extension tracks front-end JavaScript that uses DOM / jQuery APIs to manipulate html dom elements (e.g., change style, attach event listener) at runtime. - pilagod/js-tracker
2018 · github.com · its alternatives →
- 22AL
2017 · maierfelix.github.io · its alternatives →
- 23
Mocklets▲82A HTTP-based API simulator to assist parallel development 🛠️
2018 · mocklets.com · its alternatives →
- 24
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Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →