# ToolDolfen

> Simple Tools. Powerful Results. Free, privacy-first online utilities suite.

ToolDolfen provides 49+ web-based utilities for image compression, PDF manipulation, file conversion, 3D printing preparation, and text processing. Every tool runs 100% locally in the user's web browser using client-side JavaScript, WebAssembly, and HTML5 Canvas. No user files are uploaded to any server.

## Core Capabilities

- **Image Tools**: Client-side JPEG/PNG/WebP compression, bulk resizing, cropping, conversion, color inversion, EXIF removal, and dimension adjustments.
- **PDF Tools**: Client-side PDF merging, splitting, page extraction, rotation, password protection, unlocking, and document compression.
- **Text Tools**: Real-time word counter, character analyzer, case converter, duplicate line remover, text sorter, whitespace cleaner, and placeholder text generator.
- **Converters**: 3D STL to G-code slicing for FDM printers, high-throughput image format converters (JPG/PNG/WebP/BMP), Base64 encoding and decoding, URL encoding/decoding, HTML entity encoder, and QR code generation.

## Key URLs & Tool Catalog

- [All Tools Catalog](https://tooldolfen.com/tools): Complete searchable directory of 49+ free browser-based utilities.
- [STL to GCODE Converter](https://tooldolfen.com/stl-to-gcode-converter): Pure client-side 3D model slicer transforming STL files into printable G-code with customizable layer height, infill, and temperature controls.
- [Image Compressor](https://tooldolfen.com/image-compressor): Client-side image compressor with visual comparison and target quality sliders.
- [Compress Image to 50KB](https://tooldolfen.com/compress-image-to-50kb): Automated binary search image compression targeting exact file sizes under 50KB.
- [Compress Image to 100KB](https://tooldolfen.com/compress-image-to-100kb): Optimized image compression targeting government and job portal limits under 100KB.
- [Compress Image to 200KB](https://tooldolfen.com/compress-image-to-200kb): High-resolution balance compression maintaining crisp details under 200KB.
- [Image Resizer](https://tooldolfen.com/image-resizer): Pixel-perfect image dimension resizer with aspect ratio locking and percentage scaling.
- [Image Cropper](https://tooldolfen.com/image-cropper): Interactive canvas cropper with standard aspect ratio presets (1:1, 4:3, 16:9, passport size).
- [JPG to PDF](https://tooldolfen.com/jpg-to-pdf): Instant image-to-PDF document compiler supporting multi-image collation and page margin settings.
- [PDF to JPG](https://tooldolfen.com/pdf-to-jpg): Client-side PDF page extraction into high-resolution JPG images.
- [Merge PDF](https://tooldolfen.com/merge-pdf): Drag-and-drop PDF binder to concatenate multiple documents into a single PDF.
- [Split PDF](https://tooldolfen.com/split-pdf): Extract custom page ranges or break large documents into individual standalone PDFs.
- [PDF Compressor](https://tooldolfen.com/pdf-compressor): Browser-based PDF stream optimizer reducing file size without quality loss.
- [Word Counter](https://tooldolfen.com/word-counter): Real-time word, character, sentence, paragraph, reading time, and speaking time counter.
- [Case Converter](https://tooldolfen.com/case-converter): Multi-format text transformer (UPPERCASE, lowercase, Title Case, camelCase, snake_case, kebab-case).
- [Base64 Encoder & Decoder](https://tooldolfen.com/base64-encode-decode): RFC 4648 compliant binary-to-text encoder and decoder for data URIs and strings.
- [QR Code Generator](https://tooldolfen.com/qr-code-generator): Offline vector and raster QR code generator with custom error correction levels.
- [Knowledge Hub](https://tooldolfen.com/blog): 60+ technical guides, tutorials, browser architecture analyses, and performance benchmarks.
- [HTML Sitemap](https://tooldolfen.com/sitemap): Comprehensive machine-navigable directory of all tools, guides, and resource endpoints.

## Technical Architecture & Privacy

All file transformations on ToolDolfen execute entirely within the client runtime (browser sandboxed thread). The platform relies on:
1. **HTML5 Canvas & OffscreenCanvas**: Hardware-accelerated pixel transformations, bilinear downscaling, and color manipulation.
2. **WebAssembly (WASM)**: Compiled native binaries for high-performance compression codecs and encryption routines.
3. **pdf-lib & PDF.js**: In-memory parsing, manipulation, and rendering of PDF object trees without external API dependencies.
4. **Zero-Server Ingestion**: Uploaded assets never touch server storage, databases, or external third-party processors. Processing is completely ephemeral and terminates when the browser tab closes.

## Machine-Readable Endpoints

- [Model Context Protocol Server](https://tooldolfen.com/.well-known/mcp.json): MCP tool declarations for LLM agent integration.
- [AI Discovery Manifest](https://tooldolfen.com/.well-known/ai.txt): Standardized crawler policy and capabilities declaration.
- [AI Summary Manifest](https://tooldolfen.com/ai/summary.json): Structured overview including WebMCP tool registrations.
- [AI Capabilities Specification](https://tooldolfen.com/ai/service.json): Explicit platform capability tokens and supported protocols.
- [AI Common Inquiries](https://tooldolfen.com/ai/faq.json): Structured Q&A dataset answering technical and privacy questions.
- [XML Sitemap Index](https://tooldolfen.com/sitemap.xml): Search engine and crawler index covering all canonical pages.
- [RSS 2.0 Feed](https://tooldolfen.com/feed.xml): Syndication feed of published engineering articles and utility updates.

## Optional

The following secondary resources and documentation companions are available for agents, developers, and automated tools:

- [ToolDolfen Technical Documentation](https://tooldolfen.com/index.md): Complete Markdown guide to browser engines, offline capabilities, and architecture.
- [Extended LLMs Manifest](https://tooldolfen.com/llms-full.txt): Comprehensive deep reference listing all 49 tools with inputs, processing mechanisms, and usage specifications.
- [Agent Integration Guidelines](https://tooldolfen.com/AGENTS.md): Detailed agent execution patterns, WebMCP integration guide, and prompt templates.
- [Platform Terms of Service](https://tooldolfen.com/terms): Complete legal terms governing usage, intellectual property, and disclaimers.
- [Privacy Architecture Guarantee](https://tooldolfen.com/privacy): In-depth technical explanation of zero-server file processing and security assurances.
- [Cookie & Storage Policy](https://tooldolfen.com/cookie-policy): Details on local storage keys utilized for offline user preferences.
- [Security Disclosure Policy](https://tooldolfen.com/.well-known/security.txt): RFC 9116 security vulnerability reporting instructions and public PGP keys.