Free Online Cyber Tools
Use browser-based tools to analyze files, scan emails, investigate IPs, and more — no installation required. Great for quick checks, validations, or learning.
Email Analysis Tools
MXToolbox
Analyze email headers, DNS records, and blacklists for mail servers.
Header Analyzer by Google
Decode and analyze email headers to track message flow and origin.
MailTester
Check if your email server is properly configured and not blacklisted.
File Scanners
VirusTotal
Scan suspicious files and URLs for malware using over 70 antivirus engines.
Joe Sandbox Cloud
Advanced malware analysis sandbox for Windows, Android, and macOS files.
Hybrid Analysis
Free malware analysis service for suspicious files and URLs.
Packet Analysis
PCAP Analyzer for Splunk
Parse and visualize PCAPs in Splunk for advanced network analysis.
Threat Intel Platforms
AbuseIPDB
Crowdsourced database of IP addresses involved in malicious activity.
AlienVault OTX
Share and consume threat intelligence via community-powered pulse feeds.
Cisco Talos Intelligence
Comprehensive threat intelligence from Cisco’s security research team.