Software Alternatives, Accelerators & Startups

Replay.io VS Requestly

Compare Replay.io VS Requestly and see what are their differences

Replay.io logo Replay.io

The best place to backorder/drop purchase expiring ccTLD domain names

Requestly logo Requestly

A Powerful API Mocking and Testing Tool
  • Replay.io Landing page
    Landing page //
    2023-09-13
  • 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
Release Date
2021 January
Startup details
Country
United States
State
California
Founder(s)
Sachin Jain, Sagar Soni, Sahil Gupta
Employees
20 - 49

Replay.io features and specs

  • Ease of Use
    Replay.io offers an intuitive user interface that simplifies the process of recording and replaying browser sessions.
  • Debugging Capabilities
    Provides comprehensive debugging tools, such as time-travel debugging, which help developers identify issues more efficiently.
  • Collaboration
    Allows teams to share and analyze recorded sessions collaboratively, making it easier to identify and resolve issues collectively.
  • Cross-Browser Support
    Supports multiple browsers, enabling developers to test and debug across different environments seamlessly.
  • Integration
    Easy integration with existing tools and workflows, which helps in maintaining productivity while adopting Replay.io.
  • Data Security
    Ensures that recorded sessions are securely stored and shared, addressing privacy and security concerns.

Possible disadvantages of Replay.io

  • Resource Intensive
    Using Replay.io might require significant system resources, possibly slowing down the development environment.
  • Learning Curve
    Although it is user-friendly, some of the more advanced features might require time to learn and master.
  • Subscription Cost
    Depending on the chosen plan, the subscription cost might be a barrier for smaller teams or individual developers.
  • Performance Overhead
    Recording and replaying sessions could introduce some performance overhead, potentially affecting the user experience during testing.
  • Limited Offline Capabilities
    Replay.io's functionality is heavily reliant on an internet connection, which can be a limitation in offline or low-connectivity environments.
  • Compatibility Issues
    Might face compatibility issues with certain legacy systems or less commonly used browsers, limiting its versatility.

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

Replay.io videos

Jason Laster - replay.io

Requestly videos

Get Started with Requestly

More videos:

  • 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 Replay.io and Requestly)
DevOps Tools
100 100%
0% 0
Developer Tools
35 35%
65% 65
Continuous Integration And Delivery
Testing
0 0%
100% 100

Questions and Answers

As answered by people managing Replay.io 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 your primary audience?

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 Replay.io 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 Replay.io and Requestly

Replay.io Reviews

We have no reviews of Replay.io yet.
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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

Replay.io might be a bit more popular than Requestly. We know about 45 links to it since March 2021 and only 32 links to Requestly. 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.

Replay.io mentions (45)

  • Show HN: Time travel debugging AI for more reliable vibe coding
    Hi HN, I'm the CEO at https://replay.io. We've been building a time travel debugger for web apps for several years now (previous HN post: https://news.ycombinator.com/item?id=28539247). We recently launched Nut (https://nut.new) as an open source project which uses this tech for building apps through prompting (vibe coding), similar to e.g. https://bolt.new and https://v0.dev. We want Nut to fix bugs effectively... - Source: Hacker News / 2 months ago
  • Time Travel Debugging: Beyond Console.log
    Tools like replay.io and Firefox's DevTools let you record your application's execution and play it back later. It's like TiVo for your code! - Source: dev.to / 3 months ago
  • Don't Look Down on Print Debugging
    Have you ever been able to try https://replay.io time travel debugging as an alternative to conventional logging? Last time I tried it you were able to add logging statements "after the fact" (i.e. After reproducing the bug) and see what they would have printed. I believe they also have the ability to act like a conventional debugger. I think they're changing some aspects of their business model but the core... - Source: Hacker News / 6 months ago
  • A (Mostly) Complete Guide to React Rendering Behavior
    Not at this time. I'm pretty full up at this point with day job ( https://replay.io ), conferences, and personal life stuff. My current ongoing Redux maintenance task is trying to revamp our "Redux Essentials" tutorial to be TS-first. Making slower progress on that than I'd wanted, but hopefully can get that wrapped up in the not _too_ distant future. Beyond that, we've got a ton of open RTK Query feature requests... - Source: Hacker News / about 1 year ago
  • Is Something Bugging You?
    Exactly - that's what we've already built for web development at https://replay.io :) I did a "Learn with Jason" show discussion that covered the concepts of Replay, how to use it, and how it works: - https://www.learnwithjason.dev/travel-through-time-to-debug-javascript Not only is the debugger itself time-traveling, but those time-travel capabilities are exposed by our backend API: -... - Source: Hacker News / over 1 year ago
View more

Requestly mentions (32)

  • How Not to Use AI in Software Development
    Learn more at https://requestly.com/. - Source: dev.to / 5 months ago
  • How to Intercept network on iOS simulator?
    First, head over to Requestly and download and install the desktop app on your system. - Source: dev.to / 7 months ago
  • Top 10 Essential Tools for Android Development
    Requestly is a powerful tool we developed specifically to streamline the API and web traffic workflow for developers, particularly those working with Android apps. With Requestly, you can intercept, modify, and manipulate HTTP requests and responses in real-time without changing any backend code. This makes it an invaluable tool for debugging, testing, and troubleshooting issues during Android app development. - Source: dev.to / 7 months ago
  • Why ModHeader Users Are Moving to Requestly
    Requestly offers an ad-free and spam-free experience, enhancing productivity and ensuring focus. As an open-source tool, Requestly provides transparency, community-driven improvements, and enhanced security. - Source: dev.to / 7 months ago
  • Configure Amazon Ad Exchange Bids using header modifications
    Requestly is a handy tool that allows you to modify, redirect, or block HTTP requests and responses. This is particularly useful when testing how different header values affect your ad tech setups. - Source: dev.to / 9 months ago
View more

What are some alternatives?

When comparing Replay.io and Requestly, you can also consider the following products

Puppet Enterprise - Get started with Puppet Enterprise, or upgrade or expand.

HTTP Toolkit - Beautiful, cross-platform & open-source tools to debug, test & build with HTTP(S). One-click setup for browsers, servers, Android, CLI tools, scripts and more.

Terraform - Tool for building, changing, and versioning infrastructure safely and efficiently.

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

Packer - Packer is an open-source software for creating identical machine images from a single source configuration.

Warp - Warp (Windows Advanced Rasterization Platform) is a high-speed software rasterizer tool designed for the accurate reproduction of bitmap graphics on modern microprocessor-based systems.