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Optimizely VS Requestly

Compare Optimizely VS Requestly and see what are their differences

Modelence
Create production-ready applications with zero code sponsored
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Contents:
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  4. » Alternatives

Optimizely logo Optimizely

A/B testing you'll actually use.

Requestly logo Requestly

A Powerful API Mocking and Testing Tool
  • Optimizely Landing page
    Landing page //
    2023-10-04
  • 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.

Optimizely

Website
optimizely.com
Pricing URL
Official Optimizely Pricing
$ Details
-
Platforms
-
Release Date
-
Startup details
Country
United States
Edit details

Requestly

Website
requestly.com
Pricing URL
Official Requestly Pricing
$ 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
City
San Francisco
Founder(s)
Sachin Jain, Sagar Soni, Sahil Gupta
Employees
20 - 49
Edit details

Optimizely features and specs

  • Comprehensive A/B Testing
    Optimizely offers robust A/B testing capabilities, allowing businesses to test various versions of web pages and apps to determine the most effective design.
  • User-Friendly Interface
    The platform provides an intuitive and easy-to-navigate interface, making it accessible even for users who may not have technical expertise.
  • Personalization
    Optimizely's personalization feature tailors user experiences based on behavior, location, and other criteria to maximize engagement.
  • Comprehensive Analytics
    The tool offers detailed analytics and reporting functionalities that help in understanding the performance of experiments and identifying actionable insights.
  • Integration Capabilities
    Optimizely integrates well with other marketing tools and platforms, enhancing its utility and versatility.
  • Enterprise-Grade Features
    It provides enterprise-grade features like advanced targeting, real-time data, and extensive support, making it a suitable option for large businesses.

Possible disadvantages of Optimizely

  • High Cost
    Optimizely can be expensive, especially for small businesses or startups with limited budgets.
  • Steep Learning Curve for Advanced Features
    While the basic features are user-friendly, the more advanced functionalities may require a steep learning curve.
  • Limited Free Plan
    The free plan offers limited features, which might not be sufficient for businesses looking to utilize more advanced testing and personalization capabilities.
  • Resource Intensity
    Running extensive A/B tests can be resource-intensive and may slow down website performance.
  • Data Privacy Concerns
    Due to the extensive data collection, there might be concerns regarding data privacy and compliance with regulations like GDPR.

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 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.

Optimizely videos

+ Add

Optimizely Review | A/B Testing | Pearl Lemon Reviews

More videos:

  • Tutorial - Optimizely X Tutorial 2019 - How to Use Optimizely for A/B, MVT, Personalization, Program Management
  • Review - A/B Testing with Optimizely

Requestly videos

+ Add

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 Optimizely and Requestly)

Optimizely

Requestly

A/B Testing
100 100%
A/B Testing
0% 0
Developer Tools
0 0%
Developer Tools
100% 100
Web Analytics
100 100%
Web Analytics
0% 0
Testing
0 0%
Testing
100% 100

Questions & Answers

As answered by people managing Optimizely 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

Share your experience with using Optimizely and Requestly. For example, how are they different and which one is better?
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Reviews

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

Optimizely Reviews

  1. Deepak Kumar
    · Technical Writer at Einsstark ·
    Good A/B and multivariate testing tool

    Optimizely is a lower cost entry tool for anyone looking to do website testing. While their pricing structure has changed over the years it still is a pretty cost effective solution. It is easy to get tests up and running within 5 minutes once you have code placed on your site.

    I love the drag and drop features of Optimizely. It makes it very easy to make simple changes to do landing page testing for my paid search campaigns. It also frees up dev time for our web team. Also, The findings from Optimizely tests are so valuable for an end customer experience.

    Competitors: VWO
15 Best A/B Testing Tools And Software (2021 List)
Optimizely is more of a personalization tool but you cannot ignore its A/B testing superiority. It helps you put the face of the most appealing site in front of customers. There’s a lot of things that are good in this software such as the ability to set up a quick test, and a real-time statistical dashboard. No programming prerequisite needed but front-end development and...
Source: www.einsstark.tech
Top Mobile Feature Flag Tools
Optimizely is a well known A/B testing and experimentation tool for both web and mobile. It claims to be built for the enterprise with features like roles, permissions, and two-factor authentication while still maintaining excellent usability. Along with user targeting, remote configuration, and instant rollbacks, Optimizely offers advanced A/B testing and experimentation...
Source: instabug.com
18 Top A/B Testing Tools Reviewed by CRO Experts
“Convert is a fantastic tool that should be considered and evaluated by any CRO agency or end-user client that also evaluates Optimizely and VWO. They offer a level of functionality that is globally on par with them for testing, but at a lower price level once you go above the free level offered by Optimizely.
Source: conversionxl.com
Top 5 A/B Testing Tools List
All in all, Optimizely is the complete package: if you want to get started with A/B testing, it’s definitely worth trying out, considering the pricing and trial plans. If you are a more of a power user with the budget to support the top tiers, Optimizely’s advanced features might also be for you.
Source: blog.testlodge.com
How to Choose the Right Testing Software For Your Business
“Overall, Visual Website Optimizer has the slight edge for casual A/B testers, but it’s more expensive than the basic version of Optimizely. For serious A/B testers, I definitely recommend Optimizely – more comprehensive offering, even though you have to pay extra for premium features.” – Rich Page, Website Optimization Consultant
Source: www.crazyegg.com

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, Requestly seems to be more popular. It has been mentiond 35 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.

Optimizely mentions (0)

We have not tracked any mentions of Optimizely yet. Tracking of Optimizely recommendations started around Mar 2021.

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
    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 secure and reproducible on your own system. In this article, we’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-time—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 Optimizely and Requestly, you can also consider the following products

VWO - Use VWO to tweak, optimize & personalize your website with minimal IT help.

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

AB Tasty - AB Tasty is an all-inclusive platform for conversion rate optimization, personalization, customer activation, and testing.

Postman - The Collaboration Platform for API Development

Google Analytics - Improve your website to increase conversions, improve the user experience, and make more money using Google Analytics. Measure, understand and quantify engagement on your site with customized and in-depth reports.

Hoppscotch - Open source API development ecosystem

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