Quick JavaScript Switcher is a simple Chrome extension that lets you enable or disable JavaScript on a per-site basis (domain or subdomain) with a single click.

Example: You can disable JavaScript on 'https://google.com' but keep it enabled on 'https://mail.google.com'

Please consider to support my work by making a donation 💖: https://donate.stripe.com/14k03Dcbca0XaGY3cn

QJS is an open source Chrome extension coded by Maxime Le Breton. As a solo developer, your support means a lot and helps maintain the project

Quick JavaScript Switcher is a useful tool for web developers to test site behavior without JavaScript and ensure graceful degradation. SEO specialists can simulate how non-JavaScript search engines view a page, helping identify indexing issues. It’s also valuable for privacy-focused users and accessibility testers to assess a site’s functionality without JavaScript, and for quickly comparing page load speeds with and without dynamic elements.

Works with any URL scheme, including domains, subdomains, IP addresses, localhost, and local .html files!

Note: The Pause/Resume feature has been temporary disabled since 2.1 because too many users complained about the required 'debugger' permission.

Works with Chrome 88+ (for Chrome <88, use the v1 version)

Permissions: A detailed topic about why QJS need them (TLDR: didn't have choice for good UX): https://github.com/maximelebreton/quick-javascript-switcher/issues/74

Troubleshooting with v2: Some users experience issues with the v2 update, which can often be resolved by uninstalling and reinstalling the extension. I apologize for this inconvenience.

/* Log info */ 2.2.0

• Fix toggle problem due to existing rules from v1 version
• Fix problem with ip adresses

2.1.0

• Play/pause js feature has been removed because it requires a new permission (debugger), and many users complain about this new permission
• Fix bug with localhost and ip adresses
• Allow/block/clear behaviour is back

2.0.2

Fix bug with toggle when trying to clear rule, now it's the classic allow/block behaviour, instead of allow/block/clear

2.0.1

Fix bug with old rules, conflicted with new rules (so the click on the icon doesn't toggle)

2.0.0 (Major version, compatible with Chrome 88+)

• Based on new Chrome security policies (manifest v3)
• New icon design
• [new] Allow / block by domain or subdomain
• [new] Pause JS without refreshing!
• [new] Options panel to edit rules And many other improvments

1.4.12

Fix bug with chrome 91+: https://github.com/maximelebreton/quick-javascript-switcher/issues/45

1.4.4

Small fixes and promotion for the next release! (Kickstarter crowdfunding)

1.4.1

Implement a hack to fix this chrome issue in incognito mode: https://code.google.com/p/chromium/issues/detail?id=494501

1.4.0

Add synchronized options fix some bugs

1.3.2

Custom Shortcut added (you need to edit manualy in tools > extensions > keyboard shortcuts (in the bottom right))

1.3.0

• Donation added (in Options)

1.2.0

• Many Fixes
• Way to import / export rules
• Fix incognito mode

1.1.0

Auto-refresh added & options page improved (auto-refresh can be disabled trough the options page)

1.0.8

Fix background_page error in manifest v2

1.0.7

Update to manifest version 2

1.0.6

Icon modification for accessibility of red/green color deficients