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Requestly VS Wasmer

Compare Requestly VS Wasmer and see what are their differences

Requestly

A Powerful API Mocking and Testing Tool

Rating
0 reviews
Pricing
Open source Freemium Free trial
Alternatives Is it good?
Wasmer

The Universal WebAssembly Runtime

Rating
2.0 · 1 review
Pricing
Open source
Alternatives Is it good?
Modelence
Create production-ready applications with zero code sponsored

Which is more popular?

Based on our record, Wasmer should be more popular than Requestly. It has been mentioned 54 times since March 2021.

social mentions
35 vs 54
Developer Tools popularity
78% vs 22%
alternatives listed
240+ vs 97

Base details

Website, pricing, platforms and company facts side by side.

Requestly
Wasmer
Website requestly.com wasmer.io
Pricing
Open source Freemium Free trial Official pricing
Open source
Platforms
Google Chrome Firefox Edge Safari Brave Opera Vivaldi Android Windows Linux Mac OSX MacOS +9
—
Company Startup from the United States · 20 - 49 employees · 2021 —
Listed in
Testing Localhost Tools Developer Tools Debugger Open Source API Clients +3
Software Development Cross Platform App Dev Tools WebAssembly Developer Tools +1

About Requestly and Wasmer

In their own words, as submitted to SaaSHub.

Requestly
Wasmer

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...

Read more about Requestly

No description of Wasmer yet.

Features and specs

What each product offers, as listed by its team.

Requestly 15 features
Wasmer 5 features
  • 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
  • Cross-platform
    Wasmer enables running WebAssembly modules on various platforms like Linux, macOS, and Windows, enhancing portability and flexibility for developers.
  • Performance
    Wasmer is capable of near-native execution speeds, allowing applications to run efficiently by leveraging just-in-time (JIT) or ahead-of-time (AOT) compilation.
  • Language Agnostic
    Wasmer supports multiple programming languages, enabling developers to write in their preferred language and compile it to WebAssembly, enhancing inclusivity and ease of use.
  • Sandboxing
    With Wasmer, applications can run in a secure sandboxed environment, reducing potential security risks often associated with executing untrusted code.
  • Integration
    Wasmer can be embedded into different host languages like JavaScript, Rust, Python, etc., allowing seamless integration into existing projects and workflows.

Possible disadvantages

  • Limited Ecosystem
    Compared to more established technologies, the relatively newer ecosystem around Wasmer might result in fewer libraries, tools, and community support.
  • Complexity
    For developers unfamiliar with WebAssembly or looking for a simple solution, the setup and configuration of Wasmer might pose an initial learning curve.
  • Maturity of WebAssembly
    As WebAssembly is still evolving, some advanced features might not be fully supported, potentially affecting application development and deployment.
  • Debugging
    Debugging WebAssembly modules can be more challenging compared to more traditional binary formats or languages due to limited tooling and support.

Analysis

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

Requestly
Wasmer

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.

No analysis of Wasmer yet.

Videos

Walkthroughs and reviews on video.

Requestly 5 videos + Add
Wasmer 2 videos + Add

Get Started with Requestly

More videos

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

My Thoughts on ChurnKit, FlowCV and WAPM!

More videos

  • - Syrus Akbary – Wasmer for web3 apps

Category popularity

How often each product is chosen within a category, 0–100% relative to the other.

Score bands 0–20 21–40 41–50 51–60 61–100
Requestly
Wasmer
78% 78%
Developer Tools
22% 22%
0% 0%
Software Development
100% 100%
100% 100%
Testing
0% 0%
100% 100%
APIs
0% 0%

Questions & Answers

As answered by people managing Requestly and Wasmer.

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 Requestly and Wasmer. For example, how are they different and which one is better?

Log in or Post with

Reviews and articles

External articles and on-site reviews we used to compare the two products.

Requestly no reviews yet
Wasmer 2.0 · 1 review
  • Wasmer
    SaaSHub review
    · Oct 2025

    Not so good it worked at first but now i can't update my static sites i get errors and i waiting for support to reply and fixe the errrors.

Social recommendations and mentions

Recommendations tracked on public social media and blogs since March 2021.

Requestly 35 mentions
Wasmer 54 mentions

View more

  • Ask HN: Who is hiring? (April 2026)
    Wasmer (YC S19) | https://wasmer.io/ | Multiple Roles | Remote (EU) or Office (US) | Full-time We are building the next generation of infrastructure for AI without Docker containers, but with a better container technology based on... - Source: Hacker News / 6 months ago
  • IoT Architectures Under Pressure: hosting a portable firmware (Part 3)
    Several WASM runtimes are available to execute our code. In this example, we'll use Wasmer, though other options exist. If we compile AOT (Ahead-of-Time), we don’t even need a runtime at all! - Source: dev.to / over 1 year ago
  • Hello world from a WASM module in a static binary
    I decided initially to use Wasmer and ended filing a question on their repository because their own native binary build command doesn't work as expected. - Source: dev.to / over 1 year ago

View more

Alternatives to Requestly and Wasmer

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

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