PDF Diff & Patch Tool

A secure, client-side tool to compare text, PDF, and DOCX files, and to create and apply patches.

Bring the power of command-line diff and patch utilities directly into your browser with the PDF Diff & Patch Tool. This extension is an essential tool for any developer, technical writer, or system administrator who works with version control and text-based files. Your Privacy is Paramount: Every operation—from diffing to patching—is performed entirely on your local machine. Your data never leaves your computer. Core Functionality: Side-by-Side Diffing: Instantly generate a clean, color-coded visual diff between two text sources. Apply Patches: Apply unified diff files (.diff, .patch) to a base file with support for fuzz factor, just like the standard patch command. Patch Creation: Create patch files from an original and modified file, perfect for sharing changes or creating commits. Flexible Inputs: Use copy/paste, file uploads, or drag-and-drop for seamless workflow integration. Go Premium for Advanced File Handling: Our premium version enhances your workflow by adding support for complex file types: Compare PDF Documents: Extract and diff the text content of PDF files. Compare Word Documents: Directly compare .docx files without conversion. Stop juggling terminal windows and web tools. Get all your diffing and patching done in one secure, convenient place.