About CrackCrypt - Hash Lookup, Hash Cracking & JWT Checker
Hash lookup and crack hash platform for authorized security research, plus JWT checker and JWT pentesting workflows.
IMPORTANT LEGAL NOTICE
By using this service, you acknowledge and agree that:
- You have explicit authorization to lookup the hashes you submit
- You will use this service only for legitimate security research, penetration testing, or authorized password recovery
- You will NOT use this service for any illegal activities, unauthorized access, or malicious purposes
- CrackCrypt and its operators are NOT responsible for any misuse of this service
- You assume full legal responsibility for your use of this service
- Any violation of these terms may result in immediate service termination and legal action
Hash Cracking Service Overview
CrackCrypt is a hash lookup platform built to help security professionals, penetration testers, and authorized users save time and storage when working with large password corpora. Our service supports MD5, SHA1, SHA256, SHA512, and NTLM operations with dedicated high-speed databases containing 30 billion lines for each supported format.
Supported Hash Cracking Operations
JWT Checker & JWT Pentester Online
CrackCrypt also includes a browser-based JWT checker for teams that need to test my jwt tokens, validate signatures, and review common JWT misconfigurations during security assessments.
- JWT Pentesting: decode tokens, inspect claims, and run known JWT risk checks
- JWT Checker: verify signatures and test "is my jwt safe" scenarios
- JWT Bruteforce Online: run authorized dictionary checks for weak JWT secrets
Use the main tool page for full workflows: hash lookup, crack hash, and JWT testing tools.
Read focused guides for MD5 lookup, SHA1 lookup, NTLM lookup, SHA256 lookup, SHA512 lookup, JWT checker, and JWT pentesting.
Database & Performance
Our hash lookup platform uses dedicated high-speed databases built from legitimate security research sources so teams can query prepared datasets instead of maintaining massive local copies. We provide dedicated lookup coverage for each supported algorithm:
Free public access is available today for researchers who need fast validation and recovery checks. A premium version is planned to help pentesters move faster on larger assessments and reporting workflows.
- MD5 Hash Cracking: 128-bit (32 character) MD5 hashes for password recovery
- SHA1 Hash Cracking: 160-bit (40 character) SHA1 hashes for security testing
- NTLM Hash Cracking: Windows NTLM hashes for penetration testing
- SHA256 Hash Cracking: 256-bit (64 character) SHA256 hashes for recovery and incident response
- SHA512 Hash Cracking: 512-bit (128 character) SHA512 hashes for validation and research workflows
Terms of Service & Disclaimer
Service Limitations & Disclaimers
CrackCrypt explicitly disclaims all responsibility for:
- Any misuse of our hash cracking service
- Unauthorized access attempts using cracked passwords
- Legal consequences resulting from improper use
- Damage or loss resulting from service use
- Accuracy or completeness of results
Acceptable Use Policy
This hash cracking service is provided for:
- Legitimate security research and vulnerability assessment
- Authorized penetration testing with proper documentation
- Personal password recovery for owned accounts
- Educational purposes in controlled environments
- Forensic analysis with proper legal authorization
Prohibited Uses
You may NOT use this service for:
- Unauthorized access to computer systems or accounts
- Cracking hashes without explicit permission
- Any illegal activities or criminal purposes
- Violating terms of service of other platforms
- Harassment, stalking, or privacy violations
Privacy & Security
We prioritize user privacy and service security in our lookup platform:
- Strict Input Validation: Hash inputs are validated before lookup processing
- Security Headers: Browser-facing responses include hardened security policies
- Encrypted Connections: Traffic is intended to be served over HTTPS behind the proxy layer
- Operational Safeguards: Rate limits and backend protections help reduce abuse and service disruption
Technical Information
Our hash lookup engine utilizes:
- Compressed databases generated per algorithm under the database root
- Multi-threaded processing for fast hash lookups
- Optimized indexing and metadata-aware search across MD5, SHA1, NTLM, SHA256, and SHA512
- Load balancing for high availability
Data Sources
Our hash databases are compiled from legitimate security research sources:
- WeakPass Wordlists: Comprehensive password breach compilations
- Security Research Data: Publicly available hash databases
- Common Password Lists: Standard security testing wordlists
All data sources are used in compliance with their respective terms of service and security research guidelines.
Contact Information
For security research inquiries, responsible disclosure, or technical support:
[email protected]Please include "Security Research" in your subject line for faster response.