#16 in Privacy & ComplianceUpdated 2026-08

Zen

by Zen · System-wide ad and tracker blocking for Windows, macOS and Linux

28.9 — BenchRank score out of 100

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Overview

Zen is a free, open-source ad-blocker that works at the network level on Windows, macOS and Linux, so one install covers every browser and many desktop apps. It ships with pre-configured filter lists for ads, tracking and malware plus regional lists, accepts custom lists and rules in popular filter formats, and shows blocked requests in real time.

Best for: Desktop users who want ads and trackers blocked across every browser and app, not just one
Pricing: No prices are shown; the pages state only that Zen is free and open source.
Runs on: macOSWindows

Strengths and trade-offs

Strengths

Filters at network level, covering every browser and many apps
Ships with configured ad, tracker and malware filter lists
Real-time view of each blocked request and why it was stopped
Free and open source, with no tracking or data collection

Trade-offs

Requires installing a certificate to filter traffic
Desktop only — Windows, macOS and Linux, no mobile builds listed
Linux auto proxy configuration only on GNOME- and KDE-based desktops
Help comes from Discord and GitHub; no commercial support channel shown

How this score is made up

Each dimension is scored out of 100 and combined into the headline score using fixed weights.

MCP support: 0 out of 100
API quality: 0 out of 100
Documentation: 25 out of 100
Agent friendliness: 62 out of 100
Changelog: 100 out of 100
Marketing site structure: 55 out of 100
Operational trust: 0 out of 100

Measured, but not part of the score

Useful to know, but not a mark for or against the product — so these do not affect the ranking.

Openness: 60 out of 100
Maintenance: 100 out of 100

This doesn’t look right — report a problem with Zen’s score

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