Free cybersecurity tools
for desktop security.
Cobra Systems is building password checkers, breach lookup, secure scanners and PC-first security utilities. Join the waitlist for early access and premium team features.
Ship in seconds
One installer. All security tools.
Launch local executables on Windows and Linux without any API wiring.
# Run a password check executable $ PasswordCheck.exe --password "" --user " " Password strength: Strong Breached: No Score: 0
# Run the executable in PowerShell $ .\PasswordCheck.exe --password "" --user " " Password strength: Strong Breached: No Score: 0
# Run the executable on Linux $ ./PasswordCheck --password "" --user " " Password strength: Strong Breached: No Score: 0
Password check
Scan passwords for strength and exposure using breach-aware heuristics.
PasswordCheck.exe
Breach lookup
Check an email or username across known breach repositories without storing your data.
BreachLookup.exe
Password generator
Create strong, unique passwords with length, symbols and entropy controls.
PasswordGenerator.exe
Local audit
Run a quick desktop-focused scan for weak passwords, outdated configs, and credential leaks.
LocalAudit.exe
Scan report
Get a concise security report for PC-focused environments, with cross-platform guidance.
ScanReport.exe
Why people trust Cobra
Security tools built for real use
Free core tools
Use password checks, breach lookup and audits without paying a dime.
Desktop-first
Built for PC workflows, with Linux support and mobile-friendly tags for future growth.
Clear security guides
Simple documentation built around practical checks and real-world fixes.
Plug-and-play
Run every tool with a single request or command, no long setup sequence required.
Actionable results
Get quick, clear findings so you can fix bad passwords, exposed accounts and config risks fast.
Premium team features
Upgrade when you want teams, advanced reporting and priority coverage.
Why Cobra
Built different
| Feature | Cobra Systems | Typical provider |
|---|---|---|
| Free tier | Unlimited | Capped & throttled |
| Credit card to start | Never | Required |
| Setup time | Under a minute | Sales call |
| Hidden overage fees | None | Surprise bills |
| Platform support | PC & Linux tags | Mobile-only |
The plan
Where we're headed
Private beta Done
Security tools tested with a small group of private users.
Public launch Soon
Public access, docs, and desktop security tools are being prepared for release.
SDKs & dashboards Next
Official Node, Python and Go SDKs plus a usage dashboard are planned after launch.
Community contributions
Open toolkit for the community to contribute and share security checks.
Questions
Frequently asked
Yes. The core security tools are free forever. Premium teams plans add reporting, priority coverage and enterprise controls.
No. You can start using the tools without any payment information. The free tier is open and easy to try.
Yes. These tools are PC-first but work great on Linux too, and we include mobile-friendly tags for future mobile support.
Five security tools, full documentation and a public status page. See the changelog for the full release history.
Yes. Our current focus is PC and desktop workflows, with Linux tags and mobile compatibility plans for the future.
Start securing your PC in under a minute.
These tools are open to try right away — no signup or payment required.
Cobra Systems