Uses Dropbox's industry-standard zxcvbn pattern recognition engine to detect dictionary words, keyboard walks, repeated sequences, and dates.
Calculates password entropy in bits and estimates crack times for online attacks (1k guesses/sec) and offline high-speed GPU clusters (100 Billion guesses/sec).
Optionally verify if your password has been exposed in public data breaches using Have I Been Pwned k-Anonymity (sending only 5 hex chars of SHA-1 hash).
All pattern evaluation and entropy math execute locally inside your browser. Your typed password is never stored or transmitted.
| Security | 100% (No files are sent to server for processing) |
| File size limits | None (No limit on size of files) |
| Usage limits | None (Process as many files as you want) |
| Price | Free |
| User Information Captured | None (We do not request for user information such as email / phone number) |
| Ads | None (We provide complete ad free experience) |
Over 100k Users Trust SafeZipKit for File Compression & Security
Join a growing community of users who rely on SafeZipKit.com for secure file compression, encryption, and efficient data management.