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feat: DevToolkit VS Code Extension v0.1.0
12 essential developer tools right in VS Code: - JSON Formatter/Minifier - Base64 Encoder/Decoder - JWT Decoder - UUID Generator (v4/v7) - URL Encoder/Decoder - Unix Timestamp Converter - Hash Generator (MD5/SHA-1/SHA-256/SHA-512) - Regex Tester (Webview panel) - Color Converter (HEX/RGB/HSL) - Password Generator - Cron Expression Parser - Text Diff Checker Zero dependencies, 31KB bundled. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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‎.vscodeignore‎

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.vscode/**
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src/**
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node_modules/**
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tsconfig.json
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esbuild.js
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.gitignore
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**/*.ts
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**/*.map

‎CHANGELOG.md‎

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# Changelog
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All notable changes to the "DevToolkit" extension will be documented in this file.
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## [0.1.0] - 2025-02-12
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### Added
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- JSON Formatter: format and minify JSON from selection or input
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- Base64 Encoder/Decoder: encode and decode Base64 with UTF-8 support
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- JWT Decoder: decode JWT tokens, display header/payload/expiration
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- UUID Generator: generate UUID v4 (random) and v7 (time-sortable)
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- URL Encoder/Decoder: encode and decode URL components
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- Unix Timestamp Converter: convert between timestamps and dates
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- Hash Generator: compute MD5, SHA-1, SHA-256, SHA-512 hashes
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- Regex Tester: interactive webview panel with highlighting and presets
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- Color Converter: convert between HEX, RGB, and HSL formats
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- Password Generator: generate strong random passwords with presets
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- Cron Expression Parser: parse cron syntax with next execution times
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- Text Diff Checker: compare texts using VS Code built-in diff
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- Status bar button for quick access to all commands
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- Right-click context menu for common operations
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- Command palette integration with "DevToolkit:" prefix

‎LICENSE‎

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MIT License
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Copyright (c) 2025 nicepkg
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in all
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copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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SOFTWARE.

‎README.md‎

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# DevToolkit — Developer Utilities for VS Code
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12 essential developer tools right in your editor. No browser needed, no external dependencies, zero bloat.
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## Features
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| Tool | Command | Description |
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|------|---------|-------------|
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| **JSON Formatter** | `DevToolkit: Format JSON` | Format or minify JSON from selection or input |
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| **Base64** | `DevToolkit: Encode/Decode Base64` | Base64 encode and decode with UTF-8 support |
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| **JWT Decoder** | `DevToolkit: Decode JWT` | Decode JWT tokens, inspect header, payload, expiration |
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| **UUID Generator** | `DevToolkit: Generate UUID v4/v7` | Generate and insert UUID v4 (random) or v7 (time-sortable) |
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| **URL Encoder** | `DevToolkit: Encode/Decode URL` | URL-encode and decode text |
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| **Timestamp** | `DevToolkit: Convert Timestamp` | Convert Unix timestamps to dates and vice versa |
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| **Hash Generator** | `DevToolkit: Generate Hash` | Compute MD5, SHA-1, SHA-256, SHA-512 hashes |
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| **Regex Tester** | `DevToolkit: Test Regex` | Interactive regex tester with live highlighting |
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| **Color Converter** | `DevToolkit: Convert Color` | Convert between HEX, RGB, and HSL |
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| **Password Generator** | `DevToolkit: Generate Password` | Generate secure random passwords |
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| **Cron Parser** | `DevToolkit: Parse Cron` | Parse cron expressions, show next execution times |
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| **Text Diff** | `DevToolkit: Diff Text` | Compare texts using VS Code built-in diff viewer |
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## How to Use
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### Command Palette (Cmd+Shift+P / Ctrl+Shift+P)
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All tools are accessible via the command palette with the `DevToolkit:` prefix.
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### Right-Click Context Menu
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Select text in the editor, right-click, and find the **DevToolkit** submenu with common operations:
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- Format JSON
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- Encode/Decode Base64
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- Encode/Decode URL
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- Decode JWT
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- Generate Hash
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### Status Bar
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Click the **DevToolkit** button in the status bar to open a quick pick list of all available tools.
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### Selection-Aware
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Most tools work with selected text:
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1. Select text in the editor
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2. Run a DevToolkit command
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3. The result replaces the selection (for encoding/formatting) or opens in a new panel (for decode/inspect)
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If no text is selected, you'll be prompted to enter input manually.
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## Tool Details
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### JSON Formatter
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- **Format JSON**: Parses and pretty-prints JSON with 2-space indentation. Works on selected text (replaces in-place) or from input box.
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- **Minify JSON**: Compresses JSON to a single line. Great for API payloads.
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### Base64 Encoder/Decoder
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- Full UTF-8 support for international characters
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- Replaces selected text in-place, or copies to clipboard
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### JWT Decoder
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- Decodes header and payload from JWT tokens
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- Shows timestamp claims in human-readable format
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- Indicates if the token is expired
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- Opens results in a new editor tab
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### UUID Generator
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- **UUID v4**: Cryptographically random (uses Node.js `crypto.randomUUID()`)
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- **UUID v7**: Time-sortable with embedded timestamp (RFC 9562)
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- Inserts directly at cursor position
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### URL Encoder/Decoder
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- Uses `encodeURIComponent` / `decodeURIComponent`
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- Replaces selection or copies to clipboard
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### Unix Timestamp Converter
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- Auto-detects seconds (10 digits) vs milliseconds (13 digits)
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- Shows UTC, ISO 8601, local time, and relative time
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- Converts date strings to timestamps
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- Quick copy options for different formats
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### Hash Generator
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- Algorithms: MD5, SHA-1, SHA-256, SHA-512
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- Option to compute all algorithms at once
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- Uses Node.js `crypto.createHash()` for reliable results
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### Regex Tester
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- Opens an interactive webview panel
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- Real-time matching with syntax highlighting
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- Flag toggles: `g`, `i`, `m`, `s`
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- Preset patterns: Email, URL, IPv4, Hex Color, Date
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- Match details table with index and length
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### Color Converter
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- Parses HEX (`#1E90FF`), RGB (`rgb(30, 144, 255)`), and HSL (`hsl(210, 100%, 56%)`)
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- One-click copy for any format
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### Password Generator
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- Presets: Strong (20 chars), Medium (16 chars), PIN (8 digits)
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- Custom mode: choose length and character types
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- Cryptographically secure (Node.js `crypto.randomBytes`)
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- Inserts at cursor or copies to clipboard
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### Cron Expression Parser
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- Parses standard 5-field cron expressions
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- Human-readable description
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- Shows next 5 execution times
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- Field-by-field breakdown
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### Text Diff Checker
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- Three modes: clipboard vs selection, two inputs, two open files
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- Uses VS Code built-in diff editor
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- Full syntax highlighting and side-by-side comparison
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## Technical Details
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- **Zero runtime dependencies** — all tools implemented with native Node.js APIs
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- **Bundled with esbuild** — fast load times, small package size
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- **TypeScript** — full type safety
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- **Minimum VS Code version**: 1.85.0
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## Installation
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### From VSIX
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```bash
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code --install-extension devtoolkit-0.1.0.vsix
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```
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### From Source
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```bash
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git clone https://github.com/nicepkg/devtoolkit.git
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cd devtoolkit
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npm install
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npm run build
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npx @vscode/vsce package --no-dependencies
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code --install-extension devtoolkit-0.1.0.vsix
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```
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## Development
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```bash
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# Install dev dependencies
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npm install
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# Build
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npm run build
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# Watch mode
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npm run watch
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# Package
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npm run package
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```
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## License
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MIT

‎devtoolkit-0.1.0.vsix‎

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