Our free Folder to ZIP converter compresses entire directory trees into a clean ZIP archive while preserving relative subfolder structures and nested file paths. Powered by webkitdirectory browser APIs, pack complete software projects, media folders, and document trees directly in client RAM with zero server uploads.
Click "Select Folder" to select a directory folder from your computer.
Review the file count and specify a custom output ZIP name if desired.
Click "Convert to ZIP" to compress the folder tree and download the ZIP file.
Traverses complete multi-level folder trees, capturing every file path and nested directory structure automatically.
Rebuilds original directory paths inside the archive payload, ensuring unzipping restores exact folder layouts.
Folder processing and DEFLATE routines run in browser WebAssembly memory with zero network uploads.
Preserving Nested Directory Trees & Relative File Paths: Archiving entire project folders requires maintaining relative directory paths (e.g., src/components/Button.jsx or assets/images/logo.png). BunchTool uses HTML5 webkitdirectory APIs to read complete directory structures and replicate nested subfolder hierarchies faithfully inside the target zip archive.
Web Development, Backup & Code Repository Packaging: Folder zipping is essential for developers sharing code repositories, designers archiving asset folders, and businesses backing up document directories. It prevents missing dependency links caused by flattened folder structures.
100% Client-Side Directory Tree Compression: Entire folder contents and multi-level subdirectories are read and compressed 100% locally in web browser RAM. No project files, proprietary code, or personal folder assets leave your computer.