Software Alternatives, Accelerators & Startups

GTmetrix VS Requestly

Compare GTmetrix VS Requestly and see what are their differences

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GTmetrix logo GTmetrix

GTmetrix is a free tool that analyzes your page's speed performance. Using PageSpeed and YSlow, GTmetrix generates scores for your pages and offers actionable recommendations on how to fix them.

Requestly logo Requestly

A Powerfulย API Mockingย andย Testingย Tool
  • GTmetrix Landing page
    Landing page //
    2023-10-18
  • Requestly Requestly
    Requestly //
    2025-02-12
  • Requestly Rest Client
    Rest Client //
    2025-02-12
  • Requestly HTTP Interceptor
    HTTP Interceptor //
    2025-02-12
  • Requestly API Mocking
    API Mocking //
    2025-02-12
  • Requestly Requestly
    Requestly //
    2025-02-12

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 APIs, and easily mock and integrate them into web and mobile apps.

Requestly

$ Details
freemium
Platforms
Google Chrome Firefox Edge Safari Brave Opera Vivaldi Android Windows Linux Mac OSX MacOS
Release Date
2021 January
Startup details
Country
United States
State
California
Founder(s)
Sachin Jain, Sagar Soni, Sahil Gupta
Employees
20 - 49

GTmetrix features and specs

  • Comprehensive Performance Metrics
    GTmetrix provides a detailed analysis of your website's performance, including load times, PageSpeed scores, YSlow scores, and other essential metrics that help diagnose issues affecting speed and user experience.
  • Waterfall Chart
    The tool offers a waterfall chart that visually represents the loading sequence and duration of different page elements, making it easier to identify bottlenecks and optimize resource loading.
  • Global Test Locations
    GTmetrix allows users to test their websites from different geographical locations, enabling a better understanding of performance for a global audience.
  • Integration with Third-Party Tools
    The tool integrates seamlessly with other platforms and services, such as Google Lighthouse, and offers API access for developers to integrate performance metrics into their workflows.
  • Historical Data Comparison
    Users can track and compare historical performance data, allowing them to monitor improvements or regressions over time.
  • User-Friendly Interface
    GTmetrix features an intuitive and easy-to-navigate interface, making it accessible even for users with minimal technical knowledge.
  • Free and Paid Plans
    The tool offers both free and premium plans, catering to different user needs and budgets while providing essential performance insights.

Possible disadvantages of GTmetrix

  • Limited Free Features
    While the free version provides valuable insights, some advanced features are restricted to premium plans, limiting the depth of analysis available to non-paying users.
  • Occasional Inconsistencies in Results
    There can be slight variations in performance results between tests, which may lead to inconsistent data and make it challenging to pinpoint exact issues.
  • Focused on Front-End Optimization
    GTmetrix primarily focuses on front-end performance optimization, offering limited insights into server-side issues or back-end performance.
  • Limited Customization for Advanced Users
    Advanced users might find the customization options insufficient for highly specific or complex performance testing needs.
  • Potential Learning Curve
    Although the interface is user-friendly, the abundance of metrics and technical terminology can be overwhelming for beginners, potentially requiring additional learning to fully utilize the tool.

Requestly features and specs

  • Redirect URL
  • Block Network Requests
  • Modify Request & Response Header
  • Modify Response
  • Supercharge Selenium
  • Session Replay
  • Modify Query Params
  • Team Workspace
  • API Client
  • API Mocks
  • GraphQL Support
  • Zero Setup
  • Auto Capture Sessions
  • Network Logs
  • Console Logs

Analysis of GTmetrix

Overall verdict

  • Yes, GTmetrix is considered a good tool for website performance analysis.

Why this product is good

  • GTmetrix provides in-depth insights into the performance of a website by analyzing page load time, total page size, and the number of requests. It combines data from Google Lighthouse and other tools to offer recommendations for improving speed and performance. GTmetrix is user-friendly and offers both free and paid options, making it accessible to a wide range of users.

Recommended for

  • Web developers and designers who need to optimize website performance.
  • SEO professionals seeking to improve site speed and ranking.
  • Digital marketers interested in enhancing user experience and reducing bounce rates.
  • Website owners and businesses that want to monitor and improve the efficiency of their online presence.

Analysis of Requestly

Overall verdict

  • Requestly is generally regarded as a good tool due to its comprehensive functionalities and ease of use. Its ability to seamlessly manage network requests makes it suitable for both beginners and experienced developers.

Why this product is good

  • Requestly is widely considered a valuable tool because it offers robust and flexible features for intercepting and modifying network requests. Developers and QA testers appreciate it for its ability to simulate and debug API calls efficiently. It is particularly useful for testing changes without altering the codebase and for working with web applications in development and production environments.

Recommended for

  • Developers looking to debug and test API endpoints.
  • Quality Assurance (QA) teams that require reliable testing tools for web applications.
  • Technical professionals who manage network traffic and need to modify or redirect requests effortlessly.
  • Anyone involved in web development who needs to simulate network conditions or test application behavior under different scenarios.

GTmetrix videos

WordPress Speed Optimization - How I Got 100% GTmetrix Scores

More videos:

  • Review - A2 Hosting Review + GTmetrix Speed Test - 2020
  • Review - Another WordPress Page Builder Bites The Dust & Why Most Reporting Tools Like GTMetrix SUCK

Requestly videos

Session Replays by Requestly

More videos:

  • Demo - Get Started with Requestly
  • Tutorial - Modify API Response using Requestly Chrome Extension
  • Tutorial - How to load local JS file in production sites for faster debugging (Map Local Tool)
  • Tutorial - Report Quality Bugs with Video, Network logs, Console logs & Environment details

Category Popularity

0-100% (relative to GTmetrix and Requestly)
Website Monitoring
100 100%
0% 0
Developer Tools
0 0%
100% 100
Performance Monitoring
100 100%
0% 0
Testing
0 0%
100% 100

Questions & Answers

As answered by people managing GTmetrix and Requestly.

Who are some of the biggest customers of your product?

Requestly's answer:

  • Verizon
  • AT&T
  • Adobe
  • Salesforce
  • Telegraph
  • Intuit
  • Verizon

How would you describe the primary audience of your product?

Requestly's answer:

Front-end developers, QAs, PMs, Digital Marketers

What makes your product unique?

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.

User comments

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Reviews

These are some of the external sources and on-site user reviews we've used to compare GTmetrix and Requestly

GTmetrix Reviews

  1. Simon
    ยท Working at Simon ยท
    A Reliable Tool for Page Speed Analysis

    GTmetrix is a free tool that offers a comprehensive analysis of your page's speed performance. Using PageSpeed and YSlow, GTmetrix generates scores for your pages and provides actionable recommendations on how to improve them. As a user of GTmetrix, I can say that it is a reliable tool for identifying and fixing issues that may be affecting the loading speed of your website.

    ๐Ÿ Competitors: Pingdom
    ๐Ÿ‘ Pros:    Detailed|Free|Additional features
    ๐Ÿ‘Ž Cons:    Not accurate|Free plan with limited options

Requestly Reviews

Comparing Charles Proxy, Fiddler, Wireshark, and Requestly
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 have also clearly differentiated how Requestly differs from Wireshark and other web debugging tools like Proxyman, Modheader, and HTTP ToolKit separately.
Source: dev.to

Social recommendations and mentions

Based on our record, GTmetrix should be more popular than Requestly. It has been mentiond 143 times since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.

GTmetrix mentions (143)

  • SEO Isnโ€™t Just Keywords: Technical SEO Wins You Shouldnโ€™t Ignore
    ๐Ÿ‘‰ Use Google PageSpeed Insights ๐Ÿ‘‰ Try GTmetrix for detailed performance reports. - Source: dev.to / over 1 year ago
  • 3 Major Metrics to Measure your Site's Performance
    This basically defines how shifty your website is. If you've visited any website where the text and content just randomly moves as images and other content become visible, you'll know how disruptive and frustrating it can be. CLS aims to measure how often and how much this shifts occur. CLS mostly focuses on shifts that happens without user input(shifts after interactions like clicking a button are not... - Source: dev.to / over 1 year ago
  • ๐Ÿš€ Supercharge Your Website Speed with Code Splitting & CDN Optimization โ€” A Complete Guide!
    GTmetrix โ€” Get detailed waterfall charts and load time breakdowns. - Source: dev.to / over 1 year ago
  • 100+ Must-Have Web Development Resources
    GTmetrix: Not only tests speed but also analyzes potential legal risks and provides optimization suggestions. - Source: dev.to / almost 2 years ago
  • Why web application size matters
    In short, consider the following steps: 1. Analyze the current situation using a service like Google's PageSpeed Insights, GTmetrix, or sitespeed.io. RelativeCI allows you to track the application size from inside out from the bundle perspective helping you to understand the composition of your application while avoiding regressions. 2. Go through the proposed improvements 3. Prioritize the work... - Source: dev.to / almost 2 years ago
View more

Requestly mentions (35)

  • Why You Need a Local-First API Client (With Hands-On Example)
    If you want to try a local-first workflow, you can start using Requestly here: https://requestly.com. - Source: dev.to / 9 months ago
  • How to use Cursor to Generate API Testcases in Requestly
    Thatโ€™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 secure and reproducible on your own system. In this article, weโ€™ll walk through how to set up Cursor with Requestly, generate test cases automatically, and run them end-to-end so that... - Source: dev.to / 9 months ago
  • These 20 Awesome API Clients Will Change How You Work with APIs
    Requestly is a versatile browser extension and web client used to intercept, mock, and debug APIs in real-timeโ€”perfect for frontend developers. - Source: dev.to / about 1 year ago
  • Best Tools for GraphQL Development in 2025
    Requestly is a powerful tool for modifying GraphQL responses, intercepting requests, and debugging API interactions. It allows developers to tweak request bodies, capture GraphQL traffic, and share sessions for easier debugging and collaboration. - Source: dev.to / over 1 year ago
  • How Not to Use AI in Software Development
    Learn more at https://requestly.com/. - Source: dev.to / over 1 year ago
View more

What are some alternatives?

When comparing GTmetrix and Requestly, you can also consider the following products

PageSpeed Insights - PageSpeed is addon for ...

Postman - The Collaboration Platform for API Development

Pingdom - With website monitoring from Pingdom you will be the first to know when your website is down. No installation required. 30-day free trial.

Proxyman.io - Proxyman is a high-performance macOS app, which enables developers to view HTTP/HTTPS requests from apps and domains.

WebPagetest - Run a free website speed test from multiple locations around the globe using real browsers...

Hoppscotch - Open source API development ecosystem