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Requestly VS Header Editor

Compare Requestly VS Header Editor 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?
HE
Header Editor

Add custom HTTP request headers to any site. Set Authorization tokens, override Content-Type, inject debug headers per URL pattern. declarativeNetRequest. Free: 5 rules, Pro: unlimited.

Rating
0 reviews
Alternatives Is it good?
HTMLCSS to Image API
Capture website screenshots, render HTML/CSS, or create templated graphics. Render images or PDFs. Use MCP with AI, no-code automation, or the REST API. No browsers needed. sponsored

Which is more popular?

Based on our record, Requestly seems to be more popular. It has been mentioned 35 times since March 2021.

social mentions
35 vs 0
Developer Tools popularity
93% vs 7%
alternatives listed
240+ vs 7

Base details

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

Requestly
HE
Header Editor
Website requestly.com dev-tools-hub.xyz
Pricing
Open source Freemium Free trial Official pricing
—
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
Developer Tools Software Development Testing Localhost Tools +1

About Requestly and Header Editor

In their own words, as submitted to SaaSHub.

Requestly
HE
Header Editor

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 Header Editor yet.

Features and specs

What each product offers, as listed by its team.

Requestly 15 features
HE
Header Editor 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
  • Custom Header Control
    Allows users to add, modify, or remove HTTP request and response headers, giving fine-grained control over web traffic for testing and debugging purposes.
  • Useful for Development
    Highly beneficial for developers and testers who need to simulate different environments, bypass certain restrictions, or test API behavior with custom headers like CORS or authentication tokens.
  • Rule-Based Automation
    Supports creating rules that automatically apply header changes based on URL patterns, saving time compared to manual editing for repeated tasks.
  • Lightweight Interface
    Typically has a simple and intuitive user interface that doesn't consume excessive system resources, making it easy to integrate into a browser workflow.
  • Import/Export Functionality
    Often includes the ability to export and import header rules, making it easy to share configurations across teams or backup settings.

Possible disadvantages

  • Security Risks
    Modifying headers improperly can expose sensitive information or create security vulnerabilities if used carelessly, especially when testing on live production sites.
  • Learning Curve for Advanced Rules
    While basic header editing is simple, setting up complex rule-based automation with conditions can be confusing for beginners unfamiliar with header syntax.
  • Potential Browser Performance Impact
    Running multiple active rules simultaneously might slightly affect browser performance or cause conflicts with other extensions that also modify network requests.
  • Limited to Browser Scope
    Since it operates within the browser extension sandbox, it cannot modify headers for requests made outside the browser environment, limiting its use for broader network debugging.
  • Compatibility Issues
    Certain updates to browser extension APIs or specific websites with strict security policies may cause the extension to malfunction or be blocked from altering headers effectively.

Analysis

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

Requestly
HE
Header Editor

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 Header Editor yet.

Videos

Walkthroughs and reviews on video.

Requestly 5 videos + Add
HE
Header Editor 0 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

No Header Editor videos yet. You could help us improve this page by suggesting one.

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
HE
Header Editor
93% 93%
Developer Tools
7% 7%
93% 93%
Testing
7% 7%
100% 100%
APIs
0% 0%
0% 0%
Software Development
100% 100%

Questions & Answers

As answered by people managing Requestly and Header Editor.

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 Header Editor. For example, how are they different and which one is better?

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Reviews and articles

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

Requestly no reviews yet
HE
Header Editor no reviews yet

We have no reviews of Header Editor yet. Be the first one to post

Social recommendations and mentions

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

Requestly 35 mentions
HE
Header Editor 0 mentions

View more

Tracking Header Editor since Aug 2026.

Alternatives to Requestly and Header Editor

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

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