NoScript

Open-source browser extension that blocks scripts by default and only runs code from sites you trust.

Verified facts: 3 of 3
Alternatives ranked: 3
Approved reviews: 0
Visits sent from here: 0

About NoScript

NoScript takes the strictest approach of any browser blocker: JavaScript and other active content are blocked by default, and you allow them site by site for places you trust, such as your bank. That stops most ads, trackers and malicious scripts as a side effect, and NoScript adds strong protection against cross-site scripting and clickjacking. It is free, open-source software by Giorgio Maone and is built into the Tor Browser as a core security component. It runs on Firefox (including Android), Chrome, Edge, Brave and other Chromium browsers. The cost is convenience: many modern sites break until you allow the right scripts, and permissions need regular attention, so it suits security-conscious and technical users more than people who just want ads gone. Many pair it with uBlock Origin or use uBO's advanced mode instead.

Best for: Security-focused users who want scripts blocked unless they explicitly allow them.

What works

Blocks scripts by default for strong protection
Anti-XSS and clickjacking defences
Trusted enough to ship inside Tor Browser

Why people leave

Breaks many sites until you allow scripts
Needs ongoing per-site decisions
Not a dedicated ad blocker

Top NoScript alternatives

See all 3

1
uBlock Origin
Advanced mode offers similar script control with far less site breakage by default.
66.5
2
Privacy Badger
Automatic tracker blocking without having to approve scripts.
62.6
3
Ghostery
Easier everyday blocking of ads and trackers with no per-site setup.
59.6

Why people left NoScript

In reviewers' own words, from reviews of the apps they moved to. These are their opinions, not ours.

No switching stories yet. If you moved away from NoScript, review the app you switched to and tell us why.

Reviews

No approved reviews yet. How we verify reviewers

Write a review of NoScript

Your rating of NoScript

Name

Never shown publicly. A work email helps us verify you.

Title

Your review

What did you use it for, and what was good or bad? At least 40 characters.

Did you switch from another app?

Why did you leave it?

How can we verify you use it? (optional)

A GitHub username, your company domain, or say you can send a screenshot. Verified reviews count more.

I received money, credit or a gift for writing this review. (Incentivized reviews are shown but don't count toward rankings.)

By submitting, you confirm you're at least 16 and agree to our terms. Your name, rating, review and the date are published; your email isn't. See our privacy policy.

NoScript: common questions

Is NoScript free?

Yes. NoScript is free, open-source software.

Is NoScript open source?

Yes.

What platforms does NoScript run on?

NoScript is available for Browser extension and Android.

What are the best alternatives to NoScript?

The highest-ranked NoScript alternatives right now are uBlock Origin, Privacy Badger and Ghostery. See the full ranked list for pricing, platforms and verified facts.

See all 3 NoScript alternatives

NoScript facts

3 of 3 verified

License: Free open-source software; Checked Oct 25, 2026noscript.net(opens source in a new tab); “The NoScript Security Suite is Free Open Source Software (FOSS)”
Browsers: Firefox, Chrome, Edge, Brave; Checked Oct 25, 2026noscript.net(opens source in a new tab); “The NoScript Security Suite is Free Open Source Software (FOSS) providing extra protection for Firefox (on Android, too!), Chrome , Edge, Brave”
Tor Browser: Built in; Checked Oct 25, 2026noscript.net(opens source in a new tab); “NoScript in action NoScript is a built-in key security component of the Tor Browser”