BunchTool — Folder to ZIP
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📁 Folder Directory
0 files
🗂️
Select folder to convert to ZIP
or click to browse folders · Preserves paths
Output Name: .zip
✅ Structured ZIP
🗜️ Select folder and click "Convert to ZIP" to download your archive
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🗜️ Zip & Archive Tools

Folder to ZIP —
Compress Directories & Preserved Trees

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.

Recursively compresses entire folder directories and sub-folders
Preserves original relative path structures and nested file names
100% client-side compression — directory contents remain local in memory
Auto-detects root folder name for output archive creation
🗂️
FreeAlways
FreeAlways
BrowserComputed
How It Works

Use Folder to ZIP in three steps

Step 1
📂
Choose Local Folder

Click "Select Folder" to select a directory folder from your computer.

Step 2
⚙️
Configure Directory Name

Review the file count and specify a custom output ZIP name if desired.

Step 3
⬇️
Download your result

Click "Convert to ZIP" to compress the folder tree and download the ZIP file.

Why BunchTool

Why use our free Folder to ZIP?

🔒
Recursive Webkitdirectory Tree Engine

Traverses complete multi-level folder trees, capturing every file path and nested directory structure automatically.

Preserved Nested Path Structures

Rebuilds original directory paths inside the archive payload, ensuring unzipping restores exact folder layouts.

📁
100% Private In-Browser Packing

Folder processing and DEFLATE routines run in browser WebAssembly memory with zero network uploads.

FAQ

Frequently asked questions

Does the Folder To Zip require any account registration or subscription fees?
No. Folder To Zip runs 100% free inside your browser tab without account signups, credit cards, or usage caps.
Does converting a folder to ZIP upload my directory hierarchy to a server?
All processing for Folder To Zip occurs 100% locally within your browser tab memory using client-side JavaScript APIs. No data or file buffers are uploaded to remote servers.
Can I use Folder To Zip without an active internet connection?
Yes. File compression and decompression for the Folder To Zip occur locally in client memory using WebAssembly and JavaScript. Your archives and files never leave your device.
How does it preserve the folder structure?
By using the browser's webkitdirectory files reader, we capture the relative path of every selected file (e.g. 'project/src/main.js') and rebuild that folder hierarchy inside the ZIP file structure recursively.
Can I zip empty directories?
Standard browser file inputs do not expose empty directories via file selectors, only files with path properties. Consequently, empty directories are omitted, but folders containing at least one file are fully preserved.
Detailed Guide

Understanding Directory Tree Preserving, Relative Pathing & Folder Archiving

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.

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