Smarter than an online virus scanner.
Just as easy.

Upload any program or script. Our AI and LLM system goes beyond basic verdicts — telling you if it’s safe, what it does, and why it matters.
Free online file scan. No signup. Just real answers.

😕 File too large. Want to upload large files? Contact Sales

😕 Upload failed, please try again

Drop it like it's hot

Uploading...

Don't have a file handy? Use our test file

This tool was designed for the analysis of executable files and scripts. Output quality may vary for other file formats.

By submitting data or files above, you are agreeing to our Stairwell Intelligent Analysis Terms of Use and Privacy Policy. Please do not submit any personal information; we are not responsible for the contents of your submission.
If you have an existing Stairwell account, please log into the Stairwell app to access this functionality, if available, to ensure your files are handled in accordance with your environment settings and policies.

Stairwell AI analysis

Hang in there while we load your summary...

Join the Waitlist

Stairwell Intelligent Analysis (SIA) supports nearly all file types, with deep optimization for executables and scripts. Enhanced support for archives, documents, and images is on the way.

Would you like to continue?

Run every alert to ground

Search your environment across all time, all file variants at planet scale, off prem, in your private cloud-based Stairwell vault.

Cut through the noise with clear and definitive answers

No more guessing, our threat reports give you a clear yes/no answer as to whether malware has ever been in your environment.

Uplevel your security team

You don’t need to hire additional headcount, Stairwell turns your existing analysts into experts.

Create more efficient workflows

Find malware quicker and more efficiently than ever before.

We bring the ease, scale, and speed of web search to modern security.

Don't just take our word for it

[Stairwell] has dramatically reduced the time that the Washington Regional information security team spends investigating potential security events with its automated threat detection and detailed incident reports. [We] are now able to resolve issues in minutes instead of hours.

Director, Washington Regional

Integrating Stairwell into Groq's security operations has been a game-changer. Their innovative "run-to-ground" approach has not only accelerated our threat response times but also enhanced the accuracy and confidence of our threat-hunting efforts.

Paul Watson, CISO, Groq

The art of demystifying sophisticated tools has always been highly compartmentalized. Stairwell is fundamentally disrupting that model and arming every security practitioner on the planet. Stop pretending and start defending.