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Greasemonkey vs Requestly

Professional comparison and analysis to help you choose the right software solution for your needs.

Greasemonkey icon
Greasemonkey
Requestly icon
Requestly

Greasemonkey vs Requestly: The Verdict

⚡ Summary:

Greasemonkey: Greasemonkey is a Firefox extension that allows users to install user scripts that make on-the-fly changes to web page content before or after the page is loaded in the browser. It allows customization and enhancement of web pages to suit user preferences.

Requestly: Requestly is a browser extension and web debugging proxy that allows you to modify network requests and responses. It can be used for testing, debugging, automation, mock REST APIs, and modifying requests and responses on the fly.

Both tools serve their respective audiences. Compare the features, pricing, and user ratings above to determine which best fits your needs.

Last updated: May 2026 · Comparison by Sugggest Editorial Team

Feature Greasemonkey Requestly
Sugggest Score — —
Category Web Browsers Development

Product Overview

Greasemonkey
Greasemonkey

Description: Greasemonkey is a Firefox extension that allows users to install user scripts that make on-the-fly changes to web page content before or after the page is loaded in the browser. It allows customization and enhancement of web pages to suit user preferences.

Type: software

Requestly
Requestly

Description: Requestly is a browser extension and web debugging proxy that allows you to modify network requests and responses. It can be used for testing, debugging, automation, mock REST APIs, and modifying requests and responses on the fly.

Type: software

Key Features Comparison

Greasemonkey
Greasemonkey Features
  • Allows users to install scripts that make changes to web pages
  • Scripts can modify page content, add new functionalities, fix issues
  • Large library of existing scripts created by community
  • Scripts can be enabled/disabled as needed
Requestly
Requestly Features
  • Modify HTTP requests
  • Mock REST APIs
  • Modify responses
  • Automate workflows
  • Debug network requests
  • Test API endpoints

Pros & Cons Analysis

Greasemonkey
Greasemonkey

Pros

  • Customize web pages to personal preferences
  • Fix annoyances or issues on websites
  • Automate repetitive web tasks
  • Add extra features not provided by websites

Cons

  • Requires technical knowledge to create scripts
  • Scripts can slow down page load time
  • Security risk if running untrusted scripts
  • Scripts may break if website HTML changes
Requestly
Requestly

Pros

  • Easy to use interface
  • Powerful modification engine
  • Support for automation
  • Can be used to test APIs
  • Available as browser extension and standalone app

Cons

  • Limited free plan
  • Can be complex for beginners
  • Requires technical knowledge to use advanced features

Related Comparisons

Learn More About Each Product

Greasemonkey
Greasemonkey
Reviews, pricing & alternatives →
Requestly
Requestly
Reviews, pricing & alternatives →

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