🛡️ Dev Password Tool

A lightweight, offline-first desktop application for developers providing cryptographic and encoding utilities. Built with Rust + Tauri (backend) and React + TypeScript + TailwindCSS (frontend).

Features

Tool	Description
Password Generator	Secure passwords with configurable length, character sets, ambiguous char exclusion, strength meter & entropy estimation
SSH Key Generator	Ed25519 and RSA (2048/4096) key pairs with optional passphrase encryption
Token Generator	Cryptographically secure tokens in hex, base64, or URL-safe formats
Hash Generator	Live hashing with SHA-256, SHA-512, and bcrypt
Base64 Tool	Two-way encode/decode with validation and swap functionality

Highlights

• 🔒 All cryptography runs in Rust — no JS crypto
• ⚡ Fast startup, minimal memory usage
• 🖥️ Cross-platform: macOS, Windows, Linux
• 🌙 Dark mode by default
• ⌨️ Keyboard shortcuts (Ctrl/Cmd + 1-5 to switch tools)
• 📋 Secure clipboard integration

Prerequisites

• Node.js >= 18
• Rust (latest stable)
• Tauri CLI prerequisites for your OS

macOS

xcode-select --install

Linux (Debian/Ubuntu)

sudo apt update
sudo apt install libwebkit2gtk-4.1-dev build-essential curl wget file \
  libxdo-dev libssl-dev libayatana-appindicator3-dev librsvg2-dev

Windows

Install Microsoft C++ Build Tools and WebView2.

Getting Started

# Install frontend dependencies
npm install

# Run in development mode (hot-reload)
npm run tauri dev

Building for Production

# Build optimized binary for your current platform
npm run tauri build

Binaries are output to src-tauri/target/release/bundle/.

Cross-platform builds

Platform	Output
macOS	.app bundle, .dmg
Windows	.msi, .exe
Linux	.deb, .AppImage

Project Structure

dev-password-generator/
├── src/                        # React frontend
│   ├── components/             # Reusable UI components
│   │   ├── CopyButton.tsx      # Clipboard copy with feedback
│   │   ├── OutputBox.tsx       # Read-only output display
│   │   ├── PageHeader.tsx      # Consistent page headers
│   │   ├── Sidebar.tsx         # Navigation sidebar
│   │   └── StrengthMeter.tsx   # Password strength visualization
│   ├── hooks/
│   │   └── useClipboard.ts     # Clipboard hook with timeout
│   ├── pages/                  # Tool page components
│   │   ├── PasswordPage.tsx
│   │   ├── SshPage.tsx
│   │   ├── TokenPage.tsx
│   │   ├── HashPage.tsx
│   │   └── Base64Page.tsx
│   ├── utils/
│   │   ├── types.ts            # TypeScript type definitions
│   │   └── constants.ts        # Navigation items & helpers
│   ├── App.tsx                 # Main app with routing
│   ├── main.tsx                # React entry point
│   └── index.css               # TailwindCSS + custom styles
├── src-tauri/                  # Rust backend
│   ├── src/
│   │   ├── main.rs             # Application entry point
│   │   ├── lib.rs              # Tauri builder & command registration
│   │   ├── commands/           # Tauri command handlers
│   │   │   ├── password_cmd.rs
│   │   │   ├── ssh_cmd.rs
│   │   │   ├── token_cmd.rs
│   │   │   ├── hash_cmd.rs
│   │   │   └── base64_cmd.rs
│   │   └── crypto/             # Core crypto implementations
│   │       ├── password.rs     # CSPRNG password generation
│   │       ├── ssh.rs          # SSH key generation (Ed25519/RSA)
│   │       ├── token.rs        # Secure token generation
│   │       ├── hash.rs         # SHA-256/512, bcrypt
│   │       └── base64_tool.rs  # Base64 encode/decode
│   ├── Cargo.toml
│   └── tauri.conf.json
├── package.json
├── vite.config.ts
├── tailwind.config.ts
└── tsconfig.json

Architecture

React UI  →  invoke("cmd_name", args)  →  Tauri IPC  →  Rust handler  →  crypto module
    ↑                                                                          |
    └──────────────────────── Result<T, String> ───────────────────────────────┘

All cryptographic operations execute in Rust using:

• rand (OsRng) — cryptographically secure randomness
• sha2 — SHA-256/512
• bcrypt — bcrypt hashing
• ssh-key — SSH key generation (Ed25519, RSA)
• base64 + hex — encoding

Installing from Release

Download the latest release for your platform from Releases.

• Windows: run the .msi installer or the .exe
• Linux: install the .deb with sudo dpkg -i or run the .AppImage directly
• macOS: open the .dmg and drag the app to Applications

macOS: "App is damaged and can't be opened"

Since the app is not signed with an Apple Developer certificate, macOS Gatekeeper may block it. This is expected for unsigned apps distributed outside the App Store.

To fix it, open Terminal and run:

xattr -cr /Applications/Dev\ Password\ Tool.app

Then open the app normally.

Running Tests

cd src-tauri
cargo test

Performance

• Startup: < 200ms
• Binary size: ~5-8 MB (release, with LTO + strip)
• Memory: ~20-30 MB at runtime
• No Electron — uses system WebView via Tauri

License

MIT