{"id":50911072,"url":"https://github.com/hackunderway/password-checker","last_synced_at":"2026-06-16T10:02:24.836Z","repository":{"id":363439783,"uuid":"1263355023","full_name":"HackUnderway/password-checker","owner":"HackUnderway","description":"Offline password breach checker to verify if your password has been compromised in any data breach 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align=\"center\"\u003ePassword Checker 🔒\u003c/h1\u003e\n\n\u003cp align=\"center\"\u003e\n  \u003cstrong\u003eOffline password breach checker\u003c/strong\u003e to verify if your password has been compromised in any data breach 🕵🏽‍♂️\n\u003c/p\u003e\n\n\u003cp align=\"center\"\u003e\n  \u003cimg src=\"assets/Demo_01.png\" title=\"Password Checker\" alt=\"Password Checker\" width=\"600\"/\u003e\n\u003c/p\u003e\n\n\u003cp align=\"center\"\u003e\n  \u003cimg src=\"https://img.shields.io/badge/Python-3.8+-3776AB?logo=python\u0026logoColor=white\" alt=\"Python version\"\u003e\n  \u003cimg src=\"https://img.shields.io/badge/Flask-Web%20Framework-000000?logo=flask\u0026logoColor=white\" alt=\"Flask\"\u003e\n  \u003cimg src=\"https://img.shields.io/badge/License-MIT-green?logo=open-source-initiative\u0026logoColor=white\" alt=\"License\"\u003e\n  \u003cimg src=\"https://img.shields.io/badge/Offline-Private-red\" alt=\"Offline\"\u003e\n\u003c/p\u003e\n\n---\n\n## 🚀 Features\n\n- 🔐 **Offline Verification:** No external APIs, no internet required after setup.\n- 🛡️ **Privacy First:** Your password never leaves your browser or local machine.\n- 📚 **9GB Breach Database:** Checks against millions of compromised passwords.\n- 🎨 **Clean Web Interface:** User-friendly design with instant results.\n- ⚡ **Fast Lookups:** Optimized binary search on sorted password hashes.\n- 🔒 **SHA-1 Hashing:** Passwords are hashed locally before checking.\n- 💻 **Lightweight:** Runs on any system with Python installed.\n\n## 📌 Prerequisites\n\n- Python 3.8+\n\n- Required libraries: `Flask`\n\n---\n\n# 📦 Installation\n\n```bash\ngit clone https://github.com/HackUnderway/password-checker.git\n```\n```bash\ncd password-checker\n```\n```bash\npip install -r requirements.txt\n```\n\n# 💻 Usage\n\n### Run the application:\n```bash\npython3 app.py\n```\n### Open your browser and navigate to:\nhttp://127.0.0.1:5000\n\n\u003cp align=\"center\"\u003e\n  \u003cimg src=\"assets/Demo_02.png\" title=\"TokIntel\" alt=\"TokIntel\" width=\"600\"/\u003e\n\u003c/p\u003e\n\n\u003cp align=\"center\"\u003e\n  \u003cimg src=\"assets/Demo_03.png\" title=\"TokIntel\" alt=\"TokIntel\" width=\"600\"/\u003e\n\u003c/p\u003e\n\n\u003cp align=\"center\"\u003e\n  \u003cimg src=\"assets/Demo_04.png\" title=\"TokIntel\" alt=\"TokIntel\" width=\"600\"/\u003e\n\u003c/p\u003e\n\n## 🗄️ Database Setup (Important)\n\n\u003e [!IMPORTANT]\n\u003e The breach database is **NOT** included in this repository due to its size (9GB uncompressed).\n\nThis tool uses the famous **\"Breach Compilation\"** dataset – a collection of over 1.4 billion real-world leaked passwords.\n\n### 📥 How to Obtain the Database\n\nThe database is available as a torrent (originally shared as a Gist by `ducnp`):\n\n**Magnet Link:**\n```bash\nmagnet:?xt=urn:btih:5a9ba318a5478769ddc7393f1e4ac928d9aa4a71\u0026dn=breachcompilation.txt.7z\n```\n\n**File Details:**\n| Format | Size |\n|--------|------|\n| Compressed (7z) | 4.1 GB |\n| Uncompressed (TXT) | 9.0 GB |\n\n### 🔧 Setup Instructions\n\n1. **Download** using a torrent client (qBittorrent, Transmission, etc.)\n2. **Extract** the `breachcompilation.txt` file from the 7z archive:\n\n7z x breachcompilation.txt.7z\n\n## ⚙️ How It Works (Technical)\n\n1. **User submits password** via web form (HTTPS in production)\n2. **Password is hashed** using SHA-1 on the server:\n   ```python\n   hash = hashlib.sha1(password.encode()).hexdigest().upper()\n   ```\n\n### How it works:\nEnter any password in the input field\n\nClick \"Verify Password\"\n\nGet instant feedback:\n\n✅ Safe - Password not found in breach database\n\n❌ Compromised - Password appears in data breaches\n\n---\n\n\u003e [!WARNING]\n\u003e ## Disclaimer\n\u003e This tool is intended for **educational and security awareness purposes only**.\n\u003e - Never enter real passwords on untrusted systems.\n\u003e - The developer is not responsible for any misuse.\n\u003e - Use at your own risk.\n\n---\n\n# 🧠 Notes\n\n- The database file can be very large (9GB+). Ensure sufficient RAM/disk space.\n- First load may take time depending on database size.\n- For production use, consider pre-loading hashes into memory.\n- This tool verifies offline - no data leaves your network.\n\n\u003e **The project is open to collaborators and partners.**\n\n# 🧪 Supported Systems\n|Distribution | Verified version | \tSupported | \tStatus |\n|--------------|--------------------|------|-------|\n|Kali Linux| 2026.1| ✅| Working   |\n|Parrot Security OS| 6.3| ✅ | Working   |\n|Windows| 11 | ✅ | Working   |\n|BackBox| 9 | ✅ | Working   |\n|Arch Linux| 2024.12.01 | ✅ | Working   |\n\n# Support\nFor questions, bug reports, or suggestions, please contact: info@hackunderway.com\n\n# License\n- [x] TokIntel is licensed.\n- [x] See the [LICENSE](https://github.com/HackUnderway/password-checker?tab=MIT-1-ov-file#readme) file for more information.\n\n# 👨‍💻 Author\n\n* [Victor Bancayan](https://www.offsec.com/bug-bounty-program/) - (**CEO at [Hack Underway](https://hackunderway.com/)**) \n\n## 🔗 Links\n[![Patreon](https://img.shields.io/badge/patreon-000000?style=for-the-badge\u0026logo=Patreon\u0026logoColor=white)](https://www.patreon.com/c/HackUnderway)\n[![Web site](https://img.shields.io/badge/Website-FF7139?style=for-the-badge\u0026logo=firefox\u0026logoColor=white)](https://hackunderway.com)\n[![Facebook](https://img.shields.io/badge/Facebook-1877F2?style=for-the-badge\u0026logo=facebook\u0026logoColor=white)](https://www.facebook.com/HackUnderway)\n[![YouTube](https://img.shields.io/badge/YouTube-FF0000?style=for-the-badge\u0026logo=youtube\u0026logoColor=white)](https://www.youtube.com/@JeyZetaOficial)\n[![Twitter/X](https://img.shields.io/badge/Twitter/X-000000?style=for-the-badge\u0026logo=x\u0026logoColor=white)](https://x.com/JeyZetaOficial)\n[![Instagram](https://img.shields.io/badge/Instagram-E4405F?style=for-the-badge\u0026logo=instagram\u0026logoColor=white)](https://instagram.com/hackunderway)\n[![TryHackMe](https://img.shields.io/badge/TryHackMe-212C42?style=for-the-badge\u0026logo=tryhackme\u0026logoColor=white)](https://tryhackme.com/p/JeyZeta)\n\n## ☕️ Support the project\n\nIf you like this tool, consider buying me a coffee:\n\n[![Buy Me a Coffee](https://img.shields.io/badge/-Buy%20me%20a%20coffee-FFDD00?style=for-the-badge\u0026logo=buy-me-a-coffee\u0026logoColor=black)](https://www.buymeacoffee.com/hackunderway)\n\n## 🌞 Subscriptions\n\n###### Subscribe to: [Jey Zeta](https://www.facebook.com/JeyZetaOficial/subscribe/)\n\n[![Kali Linux](https://img.shields.io/badge/Kali_Linux-557C94?style=for-the-badge\u0026logo=kalilinux\u0026logoColor=white)](https://www.kali.org/)\n\nfrom \u003cimg src=\"https://i.imgur.com/ngJCbSI.png\" title=\"Perú\"\u003e made in \u003cimg src=\"https://i.imgur.com/NNfy2o6.png\" title=\"Python\"\u003e with \u003cimg src=\"https://i.imgur.com/S86RzPA.png\" title=\"Love\"\u003e by: \u003cfont color=\"red\"\u003eVictor Bancayan\u003c/font\u003e\n\n© 2026\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fhackunderway%2Fpassword-checker","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fhackunderway%2Fpassword-checker","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fhackunderway%2Fpassword-checker/lists"}