Test API

Discover Test API - powerful rest client among api testing tools. Fast and lightweight online api tester in browser.

As of June 2026, Test API has 272 users and a 5.00/5 rating from 2 reviews in the Developer Tools category.

Usersup 14.8 percent+14.8%
272
272
Ratingno change0%
5.00
2 reviews
Reviewsup 100.0 percent+100.0%
2
Version
1.1.14
Manifest V3

History

5 snapshots

Tracking since Apr 19, 2026.

286.68260233.32Apr 19, 2026Jun 7, 2026
View as table
DateUsersRatingReviewsVersion
Apr 19, 20262375.0011.1.14
May 4, 20262505.0021.1.14
May 13, 20262545.0021.1.14
May 26, 20262685.0021.1.14
Jun 7, 20262835.0021.1.14
Now2725.0021.1.14

Permissions & access

Permissions
activeTabdownloadsstorageunlimitedStoragedeclarativeNetRequestdeclarativeNetRequestWithHostAccesswebNavigation
Host access
<all_urls>

Screenshots

Test API screenshot 1

About

This versatile tool simplifies how online api testing is performed, offering a seamless and lightning-fast experience for every tech person. Say goodbye to complex setups and hello to effortless, lightning-fast workflows.
Start with a single click and dive into rest api testing. Skip the hassle of installing heavy tools. With Test API, you can manage everything online - from creating calls to debugging responses.

🚀 Unique features of our Rest Client:
➤ No setups, no dependencies - instant access at your fingertips.
➤ Lightweight endpoint tool designed to optimize your performance.
➤ Track every request automatically with detailed logs for future reference.
➤ Easily configure headers, payloads, and parameters for personalized use.

🛠 Simplified Validation for Every Use Case:
1. Switch between HTTP methods like GET, POST, PUT, DELETE, and PATCH for every step of your requests handling.
2. Analyze responses and monitor status codes in real-time.
3. Debugging becomes straightforward as you check errors, inspect headers, and preview detailed responses using our browser extension.

✅ Benefits of using our rest client:
- Comprehensive tool for effective rest app diagnostics.
- A smooth experience to test rest api without leaving your browser.
- No need for bulky installations – Test API works instantly.
- Inspect endpoints dynamically with our user-friendly interface.

Move beyond basic tools with Test API: the perfect companion for development. Whether you’re choosing instruments for endpoint validation or performing advanced api testing online, this utility fits the bill. 

💻 Here’s why Test API stands out:
1️⃣ Execute multiple requests across various environments.
2️⃣ Enable secure authentication workflows with custom headers.
3️⃣ Save api test templates and reuse them.
4️⃣ Use dark mode and enjoy late-hour debugging.

This rest client is designed for functionality and speed. Test API turns your browser into a versatile tool for debugging and inspecting endpoints. Craft, send, and validate endpoints without ever leaving your tab.

🧠 Here's what our rest client offers:
🔹 Toggle between complex methods like GET, POST, or DELETE with organized features.
🔹 Response inspection for clearer debugging.
🔹 Efficient solution to check rest endpoints on-the-go.
🔹 This chrome extension made for reliability and performance optimization.

💪 Advanced Endpoints Validation Made Easy with this web app:
This online utility is all about empowering users. From saving request histories to enabling effortless execution, it removes all the guesswork. Test API simplifies the process to validate endpoints, whether you're a pro or an amateur looking to test api online.

⚡ Highlights:
▸ Interactive interface inspired by leading tools like Postman for enhanced usability.
▸ Full support for endpoint assessment in software evaluation, providing efficient results in live environments.
▸ Lightweight yet packed with advanced features for rest api client efficiency.
▸ Saves logs systematically, allowing seamless retrieval of earlier verifications.
 
🏆 Why developers choose Test API for their projects:
➡️ Access a full library of features for evaluating endpoints, right in your browser.
➡️ Simplify workflows with features like error tracking and dynamic validation.
➡️ Debug in real-time while maintaining performance across environments.
➡️ Effortlessly configure payloads, headers, and parameters for all your scenarios.
 
💡 Frequently Asked Questions 💡
❓ How do I test api using HTTP methods?
🎯 This tool supports GET, POST, DELETE, PATCH, PUT, OPTIONS and HEAD. Simply enter your endpoint, configure your request, and check it instantly without leaving your browser.
 
❓ What about user authentication?
🔐 Securely set up authentication credentials using built-in modules. Send requests with headers pre-configured for your app.
 
❓ Can this rest client help analyze errors?
🐞 Yes! With features like live debugging, response monitoring, and error tracking, Test API simplifies analyzing your endpoints.
 
❓ Is it suitable for performance evaluation?
⏱️ While not a replacement for dedicated load simulation tools, Test API efficiently measures latency and response times to ensure smooth performance.
 
❓ Do I need an account to run this api tester online?
🚫 No. Our extension is accessible directly online. No registration, no setup - just start building requests!

Start using Test API today and experience the smoothest way to validate your services, backed by robust functionality and lightweight design. Transform your browser into the ultimate development suite 🎯.

Technical

Version
1.1.14
Manifest
V3
Size
2.9MiB
Min Chrome
111
Languages
52
Featured
Yes

Metadata

ID
ngdlcaiocooojphedohocajmdgobhkmb
Developer ID
u21ee3bfc2c056e5a0ef095d73303210f
Developer Email
[email protected]
Created
Aug 7, 2025
Last Updated (Store)
Aug 7, 2025
Last Scraped
Jun 7, 2026
Website
Support URL

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Data sourced from the Chrome Web Store · last verified Jun 7, 2026.