Private In-Browser PDF, Image & Vector Conversion Tools
Manipulate documents, compress photos, and rasterize vector graphics with KitWharf Media & Files tools. Built on modern WebAssembly and HTML5 Canvas engines, our media utilities process gigabyte-scale documents and high-resolution artwork directly in your device memory with zero cloud file uploads.
Privacy Image Compressor & WebP
Compress and convert PNG, JPG, and WebP images locally using WebAssembly. Your photos never leave your device.
Color Picker & Palette Extractor
Pick colors for instant HEX/RGB/HSL codes with shade scales, or extract a dominant color palette from any image — 100% locally.
Zero-Upload PDF Suite
Merge, split, organize, crop, watermark, compress, export pages as images, convert pictures to PDF, and extract editable text to Word locally with zero server uploads.
SVG to PNG & WebP High-Res Converter
Convert SVG code or vector files to high-resolution PNG, WebP, or JPEG images with transparent backgrounds and 1x to 8x resolution scaling.
Aspect Ratio & Resolution Calculator
Calculate aspect ratios, pixel counts, and megapixels, resize dimensions while maintaining proportions, and explore standard video and social media viewport templates.
Universal Image Converter & Favicon Maker
Batch convert between PNG, JPG, WebP, SVG, and BMP. Create multi-resolution 16x16, 32x32, 48x48 .ico website favicons in-browser.
SVG Optimizer & Vector Minifier
Clean and minify SVG markup. Strips Adobe Illustrator, Figma, and Inkscape junk metadata, comments, and collapses floating point coordinates.
Image Color Palette Extractor
Extract dominant, harmonious color palettes from any image using canvas K-Means clustering. Get HEX, RGB, HSL, CMYK codes, WCAG contrast scores, and Tailwind exports.
In-Browser Screen & Window Video Recorder
Record entire desktop displays, application windows, or browser tabs with microphone narration and system audio. Export directly to WebM or MP4 with zero cloud uploads.
ScreenInk — Screen Annotator & Presentation Studio
Zero-install in-browser screen annotation and live presentation markup tool. Draw over presentations, PowerPoint slides, PDFs, and video calls with chisel-tip highlighters, laser pointer, and freeze-frame protection. 100% private in-browser studio.
Media & Files Architecture & Usage Guide
The Security Advantage of Local Document Processing
Uploading sensitive corporate PDFs, contracts, tax returns, and medical records to commercial PDF websites carries substantial legal and privacy liabilities. Most free online PDF converters retain your files on their servers for minutes or hours, exposing confidential paperwork to potential cloud breaches.
KitWharf uses compiled WebAssembly (pdf-lib and canvas rasterizers) running directly inside your browser tab. Your confidential documents are read into local RAM, processed, and saved straight to your downloads folder without transmitting a single byte across the internet.
High-Resolution Vector Graphics Scaling
Converting SVG vector icons and illustrations into crisp raster PNGs requires fine control over resolution multipliers and canvas DPI. Our SVG converter supports up to 8x Retina scaling (up to 8,000 pixels) and transparent alpha channel preservation, ensuring print-ready and 4K-ready exports every time.
Related Guides & Tutorials for Media & Files
Merging PDFs Without Uploading Them: Why It Matters More Than You Think
Every upload-based PDF tool receives a copy of your documents. Learn what actually happens to uploaded files, which documents should never leave your device, and how in-browser processing works.
PNG, JPG, or WebP? Choosing the Right Image Format for Every Job
The right image format can cut file size by 80% with no visible difference. Learn when PNG, JPG, or WebP wins, what quality settings actually do, and how to convert without uploading.
PDF to Word: What Converts Well and What Needs Cleanup
Learn why PDF-to-Word conversion works well for text documents but can need cleanup for tables, columns, scanned pages, and complex layouts.
HEX, RGB, or HSL? Understanding Color Formats and Building Harmonious Palettes
Demystify digital color formats. Learn why developers use HEX, why designers prefer HSL, and how to extract cohesive color palettes from images for web and brand design.
Frequently Asked Questions
100% In-Browser Privacy
All media & files operate strictly inside your device memory. No files, code snippets, tokens, or personal inputs are ever sent to remote servers.