copy-jwt

Name: copy-jwt
Author: bianucci

Find and copy JWT tokens from localStorage, including encrypted MSAL (Microsoft Authentication Library) v5 tokens

As of June 2026, copy-jwt has 56 users in the Developer Tools category.

bianucci Developer Tools

Chrome Web Store ↗.crx

Users−12.5%

Rating0%

—

— reviews

Reviews0%

—

Version

0.5.0

Manifest V3

History

9 snapshots

Tracking since Apr 10, 2026.

View as table

Date	Users	Rating	Reviews	Version
Apr 10, 2026	64	—	—	0.5.0
Apr 20, 2026	61	—	—	0.5.0
Apr 25, 2026	56	—	—	0.5.0
May 2, 2026	59	—	—	0.5.0
May 9, 2026	58	—	—	0.5.0
May 14, 2026	61	—	—	0.5.0
May 20, 2026	60	—	—	0.5.0
May 26, 2026	56	—	—	0.5.0
Jun 5, 2026	55	—	—	0.5.0
Now	56	—	—	0.5.0

Permissions & access

Permissions: activeTabscripting
Host access: None declared

Screenshots

About

Visit website which contains JWT token in local storage and click extension button (key icon).

If a single token was found it is copied directly into the clipboard.

If multiple tokens were found you can select which one you would like to copy.

MSAL v5 support
Pages using MSAL.js v3+ automatically encrypt tokens in localStorage. The extension detects and decrypts these tokens transparently using the session encryption key that MSAL stores in the msal.cache.encryption cookie.

Both idToken (user identity) and accessToken (API authorization) are extracted and labeled in the selection modal. Decryption requires the browser session to still be active — MSAL removes the encryption key cookie when the browser closes.

https://github.com/bianucci/copy-jwt