Repositories (12)
BlackHAT-AI-Assistant — A local Python desktop assistant (Tkinter) that runs Groq AI queries, maps natural commands to quick web actions (Google, YouTube, GitHub), and persists session history. Lightweight, customizable GUI, easy to extend with new shortcuts and offline session recall for fast personal workflows.
TCP-Playground; A simple multi-client TCP, compact, cross‑platform Python multi‑client chat toolkit for learning and LAN testing. Includes host.py (server), clint.py (client), and net_utils.py utilities; supports optional TLS with password‑protected message encryption, CLI flags for scripted use, and unit tests for core validation.
SecureBank-CLI; A compact C++17 command-line banking simulator demonstrating secure credential handling, atomic JSON/JSONL persistence, audited transactions, and safe defaults (no overdrafts). Includes CMake builds, unit tests, sanitizers, admin tools, and Docker support — ideal for learning secure systems design and test-driven C++ workflows.
PyAlarmClock — a focused, testable Python CLI alarm that accepts HH:MM:SS AM/PM input, displays a live time table while waiting, and plays a sound (default alarm.mp3). Windows uses MCI/wave playback; other platforms fall back to a console beep. Supports one-shot or repeating rings and includes pytest tests.
virusNewFolder; A safe, cross‑platform CLI that creates predictable, persistent directories inside your OS temporary folder for demos, tests, and automation. Supports create/detect/cleanup, --dry-run, --overwrite/--yes, customizable prefixes/instances, startup automation helpers, clear logging, and unit tests.
SafeTodoManager — an offline‑first, production‑ready Python To‑Do manager with a polished Tkinter UI, keyboard shortcuts, and flexible storage backends (filesystem, SQLite, optional encrypted files). Provides atomic saves, rotating backups/logs, headless CLI for export/backup, packaging (wheel/PyInstaller), and complete dev/test tooling.
Photo PDF Bidirectional Converter is a lightweight Windows converter that turns photos into high-quality PDFs and extracts PDF pages to images. It preserves EXIF rotation, supports multi-page or per-photo PDFs, offers DPI/format/embedding controls (jpeg_high, keep_original, lossless_png), and prefers img2pdf for best fidelity. Runs locally—no uploa
PyCalculator — A secure, beginner-friendly Python scientific calculator with a modern Tkinter GUI and an AST-based evaluator (no raw eval). Supports arithmetic, %, ^ → **, sqrt, log, and degree-based trig (sin/cos/tan). Keyboard-friendly, unit-tested with pytest and CI-ready.
A modern, responsive React app showcasing a product grid with images, prices, ratings, and descriptions. Built with reusable components, dynamic demo data, and CSS grid/flexbox styling — perfect for learning React fundamentals or starting an e‑commerce UI project.
A privacy-first, static developer & cybersecurity portfolio for Sagar Biswas (MultiHAT). Fast, SEO-friendly GitHub Pages site showcasing projects, tutorials, and blog posts; includes RSS, sitemap, responsive design, and easy rebuild scripts—ideal for sharing work, demos, and technical write-ups.
CustomerSlip-CLI — A production‑quality C++17 command‑line tool that captures customer details, computes discounts and totals, prints a clean receipt, and atomically persists records to CSV and JSONL. Cross‑platform CMake build, unit tests, and export utilities make it durable, scriptable, and POS-friendly.
HashAttackDemos — An educational Python toolkit demonstrating secure password hashing (Argon2id, bcrypt, scrypt) and common failure modes (MD5, rainbow tables). Includes reusable library hash_password_cracker, attack demos (dictionary/rainbow/hybrid), CLI tools, and unit tests — for defensive learning on data you own or are authorized to test.