API Tester
#18,868 of 274,294 by installs on Chrome · #11,831 of 165,072 in productivity
First seen by this census 09/01/2026 — the store does not publish a creation date
Last updated 03/16/2026
Tracked since 09/01/2026
Compare with another extension
Category: productivity / developer
Languages: Deutsch, English, Filipino, Indonesia, Kiswahili, Melayu, Nederlands, Tiếng Việt, Türkçe, català, dansk, eesti, español, español (Latinoamérica), français, hrvatski, italiano, latviešu, lietuvių, magyar, norsk, polski, português (Brasil), português (Portugal), română, slovenčina, slovenščina, suomi, svenska, čeština, Ελληνικά, български, русский, српски, українська, עברית, العربية, فارسی, मराठी, हिन्दी, বাংলা, ગુજરાતી, தமிழ், తెలుగు, ಕನ್ನಡ, മലയാളം, ไทย, አማርኛ, 中文（中国）, 中文（台灣）, 日本語, 한국어
Description
Rest API Tester is an easy api testing tool. Streamline your software development and test api online with this Chrome extension.
Alternatives to API Tester
| Name | Users | Rating | |
|---|---|---|---|
Talend API Tester - Free Edition
by Qlik
|
600,000 | 4.8 | compare |
API Tester - REST Client Testing Tool
by ASOTools
|
10,000 | 2.7 | compare |
API Tester - REST API Tester Client FREE
|
1,000 | 5.0 | compare |
API Tester
by Gheorghe F Daniel PFA
|
351 | 3.7 | compare |
REST API Tester
|
184 | 5.0 | compare |
API Pilot - FREE and Open Source API Interceptor, Mocker & Tester
by Nowshad Hossain Rahat
|
97 | 5.0 | compare |
QuickCurl: REST API Client & cURL Testerr
by bansalpunit
|
82 | 5.0 | compare |
API Tester Pro - REST API Client & HTTP Request Maker
by Mohit Mishra
|
74 | 5.0 | compare |
RePost - API Tester
|
62 | 5.0 | compare |
ApiTester — API Request Tester & Fuzz Testing
by Halil GOLCUK
|
47 | 5.0 | compare |
Growth
Change in installs. This store publishes the count rounded to one or two significant figures, so it does not move when the listing grows - it moves when the rounding rolls over. The figures below are therefore what was actually observed between the two crawls named in "measured over", not scaled to the window, and the percentage is of that same rounding step - so a small listing crossing a bucket shows a very large one. A window needs a full period of history before it reports anything.
| Per | Growth | Growth % | Actual change | Measured over |
|---|---|---|---|---|
| day | 0 | 0.0% | 0 | 1.1 days |
| week | 0 | 0.0% | 0 | 7.5 days |
| month | Not enough history yet | |||
| year | Not enough history yet | |||
History
Tracking since 09/01/2026. History accumulates as changes are observed — check back soon.
Permissions
Access level: Broad — Reaches every website you visit, or holds a powerful capability.
- Reads and changes your data on all websites
- Block or modify web requests, with access to the content of matched sites
- Start downloads and see your download history
- See what pages you navigate to and when
- If you allow it: read and change your cookies, which can include login sessions
Ad blockers, password managers and VPNs need this kind of access to do their job. This describes what the extension can reach, not how it behaves.
Manifest V3
Reads and changes your data on all websites ⚠
- activeTab — See the page you're currently viewing, only when you click the extension
- declarativeNetRequest — Block or modify web requests using a predefined rule set
- declarativeNetRequestWithHostAccess — Block or modify web requests, with access to the content of matched sites
- downloads — Start downloads and see your download history
- storage — Save its own settings and data locally
- unlimitedStorage — Save an unlimited amount of its own data locally
- webNavigation — See what pages you navigate to and when
Optional permissions
- cookies ⚠ — Read and change your cookies, which can include login sessions