The Devs Tools API Tester Companion

by The Devs Tools · thedevstools.com · Developer Tools

Manifest V3 Free

View in Chrome Web Store Data as of 16 Oct 2026

Bypasses CORS restrictions for thedevstools.com API Tester.

Users

+1 in 30 days

Rating

0.0 / 5

unchanged in 30 days

Ratings

0 in 30 days

Store rank

#233K

#195K among extensions

Version

1.0.1

updated 21 Aug 2026

Users

monthly, 2 months

Latest, 16 Oct 2026: 6 usersMove the mouse over the chart for any month

Ratings count

monthly, 2 months

Latest, 16 Oct 2026: 0 ratingsMove the mouse over the chart for any month

The Chrome Web Store rounds user counts down to the leading digit, so the user line moves in steps. The ratings count is exact and is the better signal of real adoption.

About The Devs Tools API Tester Companion

The Devs Tools API Tester Companion is a lightweight developer utility extension designed to complement the online REST API Client & Request Tester on thedevstools.com. Features: • Complete CORS Bypass: Relays your API client queries directly through a background service worker context, bypassing browser Same-Origin Policy (CORS) limitations. • Local Host Support: Safely test API endpoints residing on localhost or local network IPs (e.g., http://127.0.0.1 or http://localhost:8080) directly from the client. • Preserved Cookies & Headers: Supports authenticated testing, passing cookies, credentials, and custom headers without cross-origin configuration friction. • Secure & Private: Operates entirely locally. The extension does not collect, log, or transmit any request details, API payloads, or cookies to external servers. It only listens to messages sent from trusted website origins (localhost, 127.0.0.1, and thedevstools.com). Requirements: This extension serves as a client-side bridge and is only active when interacting with the API Tester tool at thedevstools.com.