Hash Extender vs Liffy: Side-by-Side Comparison (2026)
Features, pricing, ratings, and pros & cons — compared head-to-head.
Hash Extender is a free penetration testing tool. Liffy is a free penetration testing tool. Compare features, ratings, integrations, and community reviews side by side to find the best penetration testing fit for your security stack.
CST VerdictBased on our analysis of available product data, here is our conclusion:
Penetration testers validating MD5 and SHA-1 implementations should start with Hash Extender; it's the fastest way to confirm length extension vulnerabilities without writing custom exploit code. The tool supports seven hash algorithms and runs as a standalone CLI, meaning no dependencies or setup friction during engagements. Skip this if your targets use modern hash constructs like SHA-3 or HMAC-based schemes; Hash Extender is built for legacy systems and will sit idle on most contemporary infrastructure.
Penetration testers running manual assessments against legacy applications will find Liffy invaluable for LFI exploitation; it handles filter bypass and log poisoning chains that require tedious manual crafting. The 884 GitHub stars and active maintenance reflect adoption among red teams who need a focused, scriptable tool rather than bloated frameworks. Skip this if you're looking for a GUI-driven scanner or need coverage beyond file inclusion vulnerabilities; Liffy is deliberately narrow and expects operator skill.
