
Postman
Proxyman.io
Hoppscotch
ngrok
HTTP Toolkit
Fiddler
Charles Proxy
A Powerful API Mocking and Testing Tool

Security Headers
Hardenize
Qualys SSL Server Test
Snyk
Detectify
Sucuri Security Scanner
HTTP Observatory
The Mozilla Observatory is a project designed to help developers, system administrators, and security professionals configure their sites safely and securely.
Which is more popular?
Mozilla Observatory might be a bit more popular than Requestly. We know about 36 links to it since March 2021 and only 35 links to Requestly.
Website, pricing, platforms and company facts side by side.
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| Website | requestly.com | observatory.mozilla.org |
| Pricing | ||
| Platforms | — | |
| Company | Startup from the United States · 20 - 49 employees · 2021 | — |
| Listed in |
In their own words, as submitted to SaaSHub.


Requestly is a modern and powerful companion for API Development and Testing. It is an open-source tool purpose-built to speed up and simplify API development workflow for developers and QAs. It is a combination of API Client and HTTP Interceptor that helps create and share API Contracts, testing...
No description of Mozilla Observatory yet.
What each product offers, as listed by its team.


Possible disadvantages
An editorial look at what each product does well and who it suits.


Overall verdict
Why this product is good
Recommended for
No analysis of Mozilla Observatory yet.
Walkthroughs and reviews on video.
Get Started with Requestly
More videos
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How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing Requestly and Mozilla Observatory.
Requestly's answer
Requestly's answer
Front-end developers, QAs, PMs, Digital Marketers
Requestly's answer
Requestly is an open-source API development and testing tool that combines the capabilities of an API Client and HTTP Interceptor, making it a better alternative to Postman + Charles Proxy. It simplifies API mocking, request modification, and debugging with an intuitive no-code interface, enabling developers and QAs to test APIs efficiently.
Share your experience with using Requestly and Mozilla Observatory. For example, how are they different and which one is better?
External articles and on-site reviews we used to compare the two products.


On the pricing front, Requestly strikes a balance between affordability and functionality. It is an open-source tool, offering freemium to individual developers and affordable pricing plans for team collaboration. We...
We have no reviews of Mozilla Observatory yet. Be the first one to post
Recommendations tracked on public social media and blogs since March 2021.


If you want to try a local-first workflow, you can start using Requestly here: https://requestly.com. - Source: dev.to / 11 months ago
That’s where automation changes the game. By pairing Cursor, an AI-powered coding assistant, with Requestly's local-first API testing and mocking platform, you can offload the grunt work of writing tests to AI while keeping execution... - Source: dev.to / 12 months ago
Requestly is a versatile browser extension and web client used to intercept, mock, and debug APIs in real-time—perfect for frontend developers. - Source: dev.to / over 1 year ago
You can check your site's security headers rating using the Mozilla Observatory. This tool analyzes your site's security headers and provides recommendations for improvement. - Source: dev.to / almost 2 years ago
Here are a few tools you can use: Https://www.zaproxy.org/ (Web app scanner) Https://www.ssllabs.com/ssltest/analyze.html?d=importer.bilendo.de (SSL server test) Https://github.com/santoru/shcheck (Security Header... - Source: dev.to / about 2 years ago
Regular Audits: Use tools like Mozilla Observatory or Security Headers to regularly check your headers. - Source: dev.to / about 2 years ago
When comparing Requestly and Mozilla Observatory, you can also consider the following products.

The Collaboration Platform for API Development
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Quickly and easily assess the security of your HTTP response headers.
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Proxyman is a high-performance macOS app, which enables developers to view HTTP/HTTPS requests from apps and domains.
Compare Proxyman.io to Requestly or Mozilla Observatory:

Hardenize provides a comprehensive and free assessment of web site network and security configuration.
Compare Hardenize to Requestly or Mozilla Observatory:

Open source API development ecosystem
Compare Hoppscotch to Requestly or Mozilla Observatory:
This free online service performs a deep analysis of the configuration of any SSL web server on the public Internet.
Compare Qualys SSL Server Test to Requestly or Mozilla Observatory: