HIGHKEEP
Antivirus · Site & ad blocker · Link checker

Be safe in a new age of AI hacking.

AI writes new malware faster than virus lists keep up. Highkeep doesn't just stop the malware it knows, it hunts down the next versions too. While it's at it, it blocks dangerous sites and ads, and tells you which links are safe before you click.

Download for Windows How it works

Free beta · v0.15.2 · 39 MB · Windows 10 & 11

Highkeep · activity● protected
  • ✕
    Password stealer blockedFreeRobux.exe tried to read Chrome's saved logins
  • ✕
    Dangerous site blockeddlscord-nitro.gift · fake Discord login
  • ?
    Program needs your OKsetup_crack.exe · unsigned, started from Downloads
  • ✓
    Threat Scan finished48,210 files checked · nothing found

Antivirus

Stops stealers and ransomware by what they do, so new versions get caught too.

Site & ad blocker

Stops scam, phishing and malware sites before they load. Ads and trackers too.

Link checker

A ✓ or ✕ next to every link, in Discord, Gmail and everywhere else.

Protection on
OnShields
1,443Blocked today
OnWeb Shield
82%PROTECTED
7/9Windows protection
2 h agoLast scan
TodayLast update
Blocked · last 7 days

The Highkeep dashboard: manage how well your PC is protected. Try the tabs. This is a simplified preview of the app.

How it works

Malware changes its face. It can't change what it's after.

Classic antivirus compares files against a list of malware someone has already caught. That list is always behind, and AI makes it cheap to produce a fresh variant every day.

Every stealer still has to open your saved passwords. Every ransomware still has to encrypt your files. Highkeep's shields watch for exactly those moves and stop the program doing them, whatever it looks like.

That's how Highkeep hunts down future versions. A variant written tomorrow still has to make the same moves to steal from you, and that's exactly where it gets caught.

List-based

"Have I seen this file before?" A brand-new variant gets through until someone adds it.

Highkeep

"What is this program trying to do?" Reading your logins or encrypting your photos gets it stopped.

More than an antivirus

Everything runs on your PC. Highkeep works next to Microsoft Defender and fills the gaps attackers use most.

Password & cookie theft guard

Stealers go straight for the files where Chrome, Edge and Discord keep your logins. An untrusted program that opens them is stopped and quarantined.

Chrome · Edge · Discord tokens

Ransomware trap

Hidden decoy files sit among your documents. A program that starts changing them is stopped before it gets to your real files.

decoys in Documents, Pictures, Desktop, Downloads

Asks before unknown programs run

An unsigned program started from Downloads is paused until you say it's fine. Apps you already use start normally.

Allow once · Always allow · Block

Threat Scan

Quick, full or custom scans with professional detection rules, known-malware fingerprints and checks for tricks like invoice.pdf.exe.

5,132 detection rules

Ad blocker & site shield

Blocks ads, trackers and known scam, phishing and malware sites before they load, in Chrome and Edge.

193,075 dangerous sites · 44,652 ad & tracker domains

Windows protection, switched on

Windows ships with strong defenses that are often off. Highkeep turns them on one toggle at a time and says in plain words what each does.

9 checks · Defender cloud, attack-surface rules, DNS

Password vault

Makes a strong, different password for every account and keeps them encrypted on your PC, locked to your Windows account.

stored locally · never uploaded

Every link checked before you click

Links on any site get a ✓ if they're clean, ! if they imitate a real site like Discord or Steam, and ✕ if they're dangerous.

catches brand-new fake sites like dlscord-nitro.gift

Get Highkeep

Free while it's in beta. No account, no email, no card.

Download for Windows

v0.15.2 beta · 39 MB · Windows 10 & 11, 64-bit

SHA-256 0fa53fdd574a42c1163e0b5379b0a5d9a189533bee38380096d216dea7a1cc19

  1. Download

    If your browser says the file is uncommon, choose Keep.

  2. Open it

    If Windows says it protected your PC, click More info then Run anyway.

  3. Click Install

    That's it. Highkeep protects you from then on and keeps itself up to date.

Highkeep is new and not code-signed yet, which is why browsers and Windows warn about it. Only download it from this page. Beta software, provided as is.

Questions

Is it really free?

Yes. Highkeep is free during the beta. If a paid version comes later, the beta keeps working and you'll be told well in advance.

Does it replace Microsoft Defender?

No. Keep Defender on. Highkeep adds the protection Defender leaves to you: stopping stealers and ransomware by behavior, blocking scam sites, and switching on Windows settings that are off by default.

Why does Windows warn me about the installer?

Windows warns about programs it hasn't seen many people download yet, especially ones without a code-signing certificate. Highkeep will be signed before its full release. Only download it from this page.

What does Highkeep send over the internet?

It downloads protection updates: detection rules and lists of dangerous sites. It doesn't upload your files, your browsing history or your passwords.

Can it catch everything?

No security software can, and anyone who promises that is selling something. Highkeep makes the common attacks much harder: stolen logins, ransomware and fake sites. Keep Windows updated and keep backups too.

How do I uninstall it?

Open Settings, then Apps, then Installed apps, find Highkeep and choose Uninstall. Your passwords stay in the vault until you remove it.

Breach check

Has your password been stolen?

See if a password or email address turned up in a data breach.

If something was found

  1. Change it

    On every site that used that password, starting with your email.

  2. One per site

    Highkeep's password vault makes and remembers a different one for each.

  3. Add two-step sign-in

    Then a stolen password alone can't get into your account.

Password data: Pwned Passwords (CC BY 4.0). Email data: XposedOrNot.

Safety tips

Stay safe online, without the jargon

Most attacks need you to click, run or type something. Here's how to spot when not to.

Which files can carry a virus

Can run code

Only open these from sources you trust.

.exe.msi.scr.bat.cmd.ps1.vbs.js.jar.hta.lnk

Can hide something inside

Scan what's inside before you run it.

.zip.rar.7z.iso.img.docm.xlsm.pdf.html

Can't run on their own

Pictures, video, music and text.

.jpg.png.gif.mp4.mkv.mp3.wav.txt

Only the last extension counts: movie.mp4.exe is a program.

On download and piracy sites

Fake download buttons

Big flashy "Download" buttons are usually ads.

A movie is never an .exe

If a video asks you to install a "player" or "codec", it's malware.

Passworded archives

A password hides a .zip from scanners. Scan after you extract it.

"Turn off your antivirus"

The classic sign of a password stealer.

Never paste commands

No real site asks you to press Win+R and paste something.

Cheats, mods and free stuff

Cheats, "free Robux" and cracked tools are where stealers hide.

Keep your accounts safe

Passkeys or two-step sign-in

Then a stolen password alone can't get in.

Messages from friends

"Try my game" links from a friend usually mean they were hacked.

One password per site

When one site leaks, the rest stay safe. Check yours.

If you think you clicked something bad

  1. Go offline. Turn off Wi-Fi or unplug the cable.
  2. Run a Full Scan and quarantine what it finds.
  3. Change your passwords from your phone, email first.
  4. Sign out everywhere so stolen logins stop working.

Privacy

Privacy policy

Short version: Highkeep works on your computer. It doesn't collect your files, your browsing or your passwords, and there are no accounts, ads or tracking.

Effective 31 October 2026. Highkeep is made by Damion Coertzen in Texas, USA.

The Highkeep app

Scans, real-time protection and Windows protection all run on your PC. Highkeep never uploads your files, your browsing history or your passwords.

It connects to the internet only to download things: protection updates (detection rules, malware fingerprints and lists of dangerous sites, from public security sources) and new versions of Highkeep from this website. Like any download, these requests show your IP address to the server that answers them. Nothing about you or your PC is sent with them.

The password vault is encrypted and stored only on your PC, locked to your Windows account. It is never uploaded.

The Highkeep Shield browser extension

Highkeep Shield checks the addresses of pages and links against lists stored inside the extension, on your computer. Those addresses are not sent anywhere. To put a check mark next to links, it reads link addresses on the pages you visit; it does not read or collect anything else on the page.

It counts what it blocked (for example, 12 ads on a news site) and passes those counts only to the Highkeep app on the same computer, so you can see them on the dashboard. They never leave your PC.

If you choose to add your own Google Safe Browsing key in the extension's options, page addresses are also checked with Google, and Google's privacy policy applies to that check. This is off unless you turn it on.

This website

No cookies, no analytics, no ads. The site is hosted on GitHub Pages, and GitHub may keep standard server logs such as IP addresses (see GitHub's privacy statement).

Breach check: your password never leaves your browser. Only the first 5 characters of a scrambled fingerprint of it are sent to the Pwned Passwords service, and the match happens on your device. When you check an email address, it is sent to the XposedOrNot breach database to look it up. Highkeep does not store it.

Children

Highkeep isn't directed at children under 13 and doesn't knowingly collect anything from them. It doesn't collect personal information from anyone.

Changes and contact

If this policy changes, the new version will be posted here with a new date. Questions or security reports: contact us privately on GitHub.