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AdBolish

Free ad blocker for Windows

Block ads in every app, not just your browser.

AdBolish stops ads, trackers and malware at the DNS level, so they never load in Chrome, Edge, Windows, Office, games or anything else on your PC. It runs on your machine, never records what you browse, and it's free.

See what it blocks
  • Every app on your PC
  • No browser extension
  • Free, no account

See it in action

What blocking looks like from the inside

The dashboard shows what AdBolish stopped, who was asking and how to let something through. Here it is, running.

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What's inside

One switch for the whole PC, and the tools to tune it

Protection runs quietly from the tray. When you want to see what it's doing, or a site needs a hand, everything is one click away.

System-wide blocking

AdBolish answers your PC's DNS lookups itself, so ad, tracker and malware domains never load, in your browser, in Windows, in Office, in games and in every other app.

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Ad networks

One switch for ad blocking, and a breakdown of every advertising network AdBolish stopped: its blocks, its domains, its share, and the domains behind it.

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Tracker blocking

See who AdBolish stopped from following you: analytics services, the telemetry apps and devices send home, and the social tracking pixels on other sites.

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Threat protection

Malware, phishing, scam and crypto-mining sites are blocked for every app, and a notification names the site and the app that tried to reach it.

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Content & family filters

Block adult, gambling or social media sites in every browser and app on the PC, and enforce SafeSearch and YouTube Restricted Mode alongside them.

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Realtime log

Watch blocks happen as they happen: the domain, the program that asked, the network behind it and the rule that matched, filterable by group or app, with allow options on every row.

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Exclusions & custom blocks

Look up any domain against AdBolish's lists, allow the ones you rely on, block extra ones yourself, and make per-app exceptions, all from one page.

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Fix a broken site

When a page won't load or an app can't sign in, AdBolish shows what it blocked in the last minute, grouped by site, so you can allow it for an hour or for good.

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Why DNS-level

Your browser isn't the only thing showing you ads

A browser extension only sees the browser. Windows, Office, chat apps, games and smart-TV-style apps all phone home too. AdBolish sits where every one of them asks for an address, so one blocker covers them all.

Every app, not just the browser

Windows telemetry, Office, desktop apps and games are filtered the same way your browser is, with nothing to install in each.

Stopped before it loads

A blocked domain gets no address, so the ad, tracker or malware download never reaches your PC to be hidden after the fact.

Your browsing stays yours

Filtering happens on your PC. Allowed lookups are never recorded, and no domain you visit is sent to us.

Transparent funding

How AdBolish stays free

AdBolish shares a slice of your PC’s idle internet bandwidth, when it can, through Massive, our vetted partner. That is what pays for it, instead of a subscription, a “premium” tier or selling what you browse. It relays other people’s ordinary web traffic. It never reads your files, your browsing or what AdBolish blocks.

  • Disclosed before anything runsSpelled out at install: you agree to it, or you don't install.
  • Never your browsingIt relays other parties' traffic. What you look up stays on your PC.
  • Keeps running in the backgroundWith its own tray icon, next to AdBolish's, and a working off switch.
  • You can turn it offOne switch in Settings. Blocking pauses while it is off.

Turning sharing off pauses blocking after about two minutes. That is the trade, and the app says so plainly rather than letting you find out. Your internet keeps working, just unfiltered, and turning things off, allowing a site and quitting always work. While sharing is on, nothing is metered or held back. Don’t want to take part at all? Uninstalling ends it completely.

Read exactly how it's funded
  • Code-signed installerSigned by Clearware, LLC
  • Runs on your PCNo cloud filter in the middle
  • Undoes itselfYour DNS comes back on quit or uninstall
  • No accountNothing to sign up for

How it works

Protected in three steps

No extension to install per browser, no account to create, no lists to pick.

  1. 1

    Install it

    Run the signed installer. It installs for your Windows account and starts blocking with the lists it ships with, no download needed.

  2. 2

    Turn on every-app filtering

    At the end of the install, Windows asks once to set up the AdBolish Protection Service. Click Yes, and every program is covered from the moment Windows starts.

  3. 3

    Forget about it

    Close the window and it keeps filtering from the tray. Lists update daily on their own. If a site misbehaves, Site broken? fixes it in two clicks.

The fine print, up front

What AdBolish can't do, and what it asks of you

No reviews to show yet, and we won't invent any. Here are the limits instead, so nothing surprises you after you install.

  • Every-app filtering needs one permission

    Routing your PC's DNS is a system setting, so Windows asks once, at install, to set up the protection service. Decline it and AdBolish filters only lookups sent to 127.0.0.1 until you click Set up.

  • A browser's own secure DNS skips it

    A browser set to always use its own secure DNS never asks AdBolish. The app names the browser and the setting to switch off, or does it for Chrome and Edge.

  • Some ads share a server with the content

    DNS blocking works per domain. Ads served from the same address as the page, like YouTube's video ads, can't be split off without blocking the site.

  • Sharing off means blocking pauses

    AdBolish is paid for by sharing idle bandwidth through Massive. Turn sharing off and, after about two minutes, blocking pauses. Your internet keeps working, unfiltered.

  • Now and then, something breaks

    Any blocker eventually catches a domain a site needs. Site broken? shows what was blocked in the last minute so you can allow it, for an hour or for good.

  • Windows only, this PC only

    AdBolish runs on Windows 10 and 11 (64-bit). It filters the PC it is installed on, not your phone or the rest of your network.

The longer versions: how it's fundedwhat we collect

Get AdBolish

Fewer ads everywhere, starting in a minute

Install it, say yes to the one Windows prompt, and every app on your PC is filtered. Close the window and it keeps working from the tray.

Windows 10/11 · Free · No account

Quit or uninstall any time, and your original DNS settings come back.

FAQ

Questions, answered straight

The things people ask before they install a system-wide blocker.

Yes. There’s no paid tier, no trial and no account. AdBolish is free because, while it’s installed, it shares a slice of your PC’s idle bandwidth through Massive, our partner network. You agree to that at install, and you can switch it off, though blocking pauses while it’s off. Here’s exactly how it’s funded.