Zen
by Zen · System-wide ad and tracker blocking for Windows, macOS and Linux
BenchRank score
Screenshots of Zen
Homepage
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 Zen markets itself
A structured read of the promise, proof and page design on Zen’s captured homepage.
Homepage capture
“Block ads everywhere. Not just in your browser.”
- Angle: Outcome / benefit-led
- Hero: Typography only
Pricing
Published plans and prices from Zen’s own pricing page.
How this score is made up
Each dimension is scored out of 100 and combined into the headline score using fixed weights.
MCP support
Whether an agent can drive the product through the Model Context Protocol, and how much setup that takes.
API quality
Public API surface: machine-readable spec, official SDKs, documented auth, errors, rate limits and versioning.
Documentation
Publicly reachable docs — coverage, freshness, code samples and machine readability.
Agent friendliness
How readable the site is to an automated client: llms.txt, structured data, server-rendered content, crawler access.
Changelog
A public, dated record of what shipped and when — the clearest signal that a product is still alive.
Marketing site structure
Whether the site answers a buyer's questions: clear positioning, the pages that matter, and accessibility.
Page speed
How fast the site loads for real visitors: Chrome UX Report 75th-percentile LCP, INP and CLS, with a Lighthouse mobile run standing in where a site has too little traffic for field data.
Operational trust
Status page and incident history, security disclosure, compliance and data-processing documentation.
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
Source availability, self-hosting, data export and open standards. Scored and shown, but not part of the composite — paid SaaS is not worse for being paid SaaS.
Maintenance
Release cadence and repository activity. Scored and shown, but not part of the composite — it is only measurable for open repositories.
Where this comes from
The Zen pages BenchRank reads when it scores the product — its documentation, release notes, status and security pages, and its repository where there is one.
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Is this your product?
Claim Zen to manage its profile. Claiming lets you suggest edits to the descriptive fields — it never changes scores or rankings.