JSner - Endpoint Extractor

Advanced endpoint scanner with verification. Extract and test API endpoints, GraphQL queries, and more from any website.

As of June 2026, JSner - Endpoint Extractor has 68 users in the Productivity category.

Productivity

Chrome Web Store ↗.crx

Users+83.8%

Rating0%

—

— reviews

Reviews0%

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Version

2.0.0

Manifest V3

History

6 snapshots

Tracking since Apr 1, 2026.

View as table

Date	Users	Rating	Reviews	Version
Apr 1, 2026	37	—	—	2.0.0
Apr 19, 2026	42	—	—	2.0.0
Apr 29, 2026	47	—	—	2.0.0
May 8, 2026	52	—	—	2.0.0
May 21, 2026	53	—	—	2.0.0
Jun 4, 2026	60	—	—	2.0.0
Now	68	—	—	2.0.0

Permissions & access

Permissions: scriptingactiveTabstoragetabs
Host access: <all_urls>

Screenshots

About

JSner – Directory & Endpoint Finder for Bug Hunters
JSner is a lightweight browser extension built for bug bounty hunters and penetration testers. It automatically crawls JavaScript files and other resources on the target domain to uncover hidden directories, endpoints, APIs, and configuration paths — all from your browser.

🔍 Features
Instantly extract endpoints and directories from loaded scripts and pages
Supports JavaScript, JSON, HTML, and other static resources
Auto-filters duplicates and noise for cleaner results
One-click export of findings (TXT / JSON)
100% client-side — no data leaves your browser

⚡ Why JSner
Perfect for quick reconnaissance during web application testing.
It helps identify forgotten or hidden API endpoints that may expose sensitive functionality or lead to deeper vulnerabilities.

🛠️ Usage
Load your target site.
Open JSner and click “Scan”.
Review and export discovered endpoints instantly.

🤝 Contribute
Project repo: github.com/vegeta2op/JSner
Pull requests, feature ideas, and improvements are welcome!