The Best Userscript Alternatives in 2026

Popup Blocker (strict) prevents popup windows in a browser extension and includes a history feature.

SB.js brings SponsorBlock to a bookmarklet or userscript for restrictive environments, with loader and standalone usage options.

HaGeZi publishes DNS blocklists for filtering ads, trackers, malware, and other unwanted domains.

uBlock Origin is a content blocker for Chromium and Firefox browsers, described by its project as efficient, fast, and lean.

Subscribe to a uBlock Origin list that blocks websites identified by its maintainer as AI-generated content farms.

NeoDevHost publishes an ad-blocking hosts list, with repository topics indicating support for tools such as AdAway and Pi-hole.

This curated host file lists domains serving ads, tracking scripts, and malware for blocking through a hosts file.

Block hosts through DNS on Android with DNSNet, a DNS-based filtering app.

Pi-hole Tray is an unofficial Windows system tray app for monitoring and managing Pi-hole instances from the desktop.

The Locale Switcher extension for Chrome and Firefox changes browser language settings and Accept-Language headers, with per-tab controls.

uBlock Origin Lite is the Manifest V3 version of the uBlock Origin project, with browser installation links listed on its project page.

CastSponsorSkip is a Go program that uses the SponsorBlock API to skip sponsored YouTube segments and skippable ads on local Google Cast devices.

Skip sponsorship segments in YouTube videos with iSponsorBlock, a jailbreak tweak using the SponsorBlock API.

DNS Speed Test is a browser-based tool for measuring DNS over HTTPS server speeds and comparing results for a location.

For Firefox, Chameleon reduces fingerprinting signals using per-origin deterministic noise across browser fingerprinting surfaces.

The arkenfox user.js wiki discusses browser extensions and recommends keeping them to a minimum because they have privileged browser access.

This repository provides a setup guide for NextDNS, described as a DNS-over-HTTPS proxy with configuration options.

This privacy DNS project lists filtering for ads, ad tracking, and malware, alongside DNSSEC validation and several DNS protocols.

Technitium DNS Server is a DNS server project with source code and repository information hosted on GitHub.

Blacklists and whitelists built by open code, so you know what goes into them.

This arkenfox GitHub issue asks about Firefox's Enhanced Tracking Protection setting for suspected fingerprinting and its behavior.

Scam Blocklist provides a HOSTS-format list of domains described as untrustworthy, with nightly updates that remove dead or invalid domains.

Pi-hole Optimized Blocklists combines deduplicated lists from curated sources for ads, tracking, malware, phishing, suspicious sites, and NSFW domains.

The uAssets repository provides filter lists for uBlock Origin and uBlock Origin Lite, with its issue tracker hosted on GitHub.