Our Mission
iMalware was built on a simple belief: everyone deserves access to fast, reliable malware detection — without paying a subscription, creating an account, or sacrificing their privacy.
Too many security tools require you to upload your files to a third-party server, creating unnecessary risk. We took a fundamentally different approach: your files never leave your device. All hashing is done locally in your browser, and only a cryptographic fingerprint is checked against our database.
How We're Different
Traditional online scanners upload your entire file to their servers for analysis. This means your sensitive documents, executables, and personal files pass through third-party infrastructure. iMalware computes the MD5 hash entirely in your browser. Your browser then requests only the slice of our database that starts with the same first three characters of the hash, and compares the full hash locally. We never receive your file, and we never even see its full hash.
Our Database
Our database currently contains 1,045,564 MD5 hashes of known malware files. It is compiled from multiple open-source and commercial threat intelligence feeds. It is updated daily to include the latest discovered threats, ensuring our detection capabilities stay current with the evolving threat landscape.
Open & Transparent
iMalware is free to use with no limits. We don't run ads, we don't sell data, and we don't require registration. We believe basic cybersecurity tools should be accessible to everyone, regardless of their technical expertise or budget.
Limitations
iMalware uses hash-based detection, which excels at identifying known threats. It does not perform heuristic analysis, behavioral monitoring, or sandboxing. For comprehensive protection, we recommend using iMalware alongside a full endpoint security solution. Think of us as a quick second-opinion tool you can reach for whenever a file looks suspicious.
Learn More
Read our malware scanning guides, including how to scan a file for malware and how online malware scanners compare, or check a hash directly with the MD5 hash lookup.