How do I compress an entire folder into a RAR or ZIP archive?

Switch to the 'Compress Folder / Files' tab, then click 'Select Folder' or simply drag and drop your folder into the workspace. Choose your desired compression format (RAR, ZIP, Tar GZip, Tar BZip2, Tar XZ, or 7Z), and click 'Compress & Download'. The archive is created directly in your browser RAM.

Are my files or folders uploaded to any server?

No. Both decompression and folder compression run entirely on your local machine using WebAssembly and pure client-side code. No files, folders, or passwords are ever transmitted to any remote server.

What formats can I convert my folder into?

You can convert folders into WinRAR-compatible RAR (.rar), standard ZIP (.zip), Tar GZip (.tar.gz), Tar BZip2 (.tar.bz2), Tar XZ (.tar.xz), raw Tar (.tar), and 7-Zip (.7z) formats.

v2.2 WebAssembly Universal In-Browser Archive Engine by Addutech

Universal Archive Extractor & Folder Compressor

Extract RAR, ZIP, 7Z, TAR, GZ, and ISO files or compress entire folders into RAR, ZIP, TAR.GZ, BZ2, XZ, or 7Z. Zero server uploads, total privacy, and maximum performance.

Folder to RAR & ZIP Zero Server Load WASM In-Memory Engine Password Protected Clipboard Paste (Ctrl+V)

Click to choose or drop an archive here

You can also paste a copied file directly using Ctrl + V / Cmd + V

.RAR .ZIP .7Z .TAR .TAR.GZ .BZ2 .XZ .ISO

Archive Format / Mode

Password (Optional)

Initializing WebAssembly engine... Local RAM

Drop an entire folder or files here to compress

Select a folder or multiple files to package them into your chosen archive format

Convert to .RAR .ZIP .TAR.GZ .TAR.BZ2 .TAR.XZ .TAR .7Z

Target Compression Format

Compression Level

Output Archive Name (without extension)

Packing files... Local Processing

Successfully compressed folder!

Files Extracted

0 B

Total Unpacked Size

0.0s

Decompression Time

Engineered by Addutech for Privacy & Power

Industry-leading client-side architecture for seamless compression and extraction.

100% In-Browser Confidentiality

Your files and folders never leave your device. All decompression and folder packaging occur entirely inside your browser's local memory with zero server uploads.

Folder Compression Engine

Drag any folder from your desktop and package it instantly into RAR, ZIP, TAR.GZ, TAR.BZ2, TAR.XZ, TAR, or 7Z archives with full folder hierarchy preservation.

WebAssembly Performance

Powered by compiled WebAssembly (WASM) running inside dedicated WebWorkers. Unpack gigabyte-sized archives without browser lag or interface freezing.

Instant In-Browser Previews

Inspect extracted images, documents, markdown files, JSON, and source code directly in the browser before saving them to disk.

Why Choose Addutech Archive Studio?

See how client-side WebAssembly beats traditional cloud compression services.

Capability	Traditional Cloud Converters	Addutech Archive Studio
Data Transmission	Uploaded to external servers	100% on your device (Local RAM)
Folder Compression	Rarely supported / requires multiple uploads	Direct Folder Drag & Drop
File Size Limits	Strict caps (typically 50MB - 100MB)	Unlimited (Device RAM bounded)
Format Conversion	Limited to basic ZIP	RAR, ZIP, TAR.GZ, TAR.BZ2, TAR.XZ, 7Z
Password Security	Transmits plain text password across web	Decrypted locally in browser

Supported Archive Formats

Full read and write support across modern archive standards.

RAR (.rar)

Extracts WinRAR 4 and WinRAR 5 archives, and compresses folders directly into WinRAR-compatible RAR archives.

ZIP (.zip, .jar, .apk)

Full extraction and compression to standard PKZIP archives with custom Deflate compression levels.

Tar GZip (.tar.gz, .tgz)

Extract and create standard Unix Gzip-compressed tarballs widely used in open-source distributions and server packages.

Tar BZip2 (.tar.bz2)

High-compression bzip2 tarball creation and extraction, ideal for source code repositories and text backups.

Tar XZ (.tar.xz)

Advanced LZMA2 compressed tarballs providing the highest data compression ratios available.

7-Zip (.7z) & ISO

Decompress 7-Zip LZMA packages and ISO 9660 disc images directly from browser memory.

Frequently Asked Questions

Common questions about Addutech Archive Studio.

How do I compress a folder into a RAR or ZIP file?

Click on the "Compress Folder / Files" tab at the top. Click "Select Folder" or simply drag and drop any folder from your desktop into the box. Choose your format (.rar, .zip, .tar.gz, .tar.bz2, .tar.xz, .tar, or .7z), select your compression ratio, and click "Compress & Download". The compressed archive is generated instantly in your browser.

Is my data uploaded to Addutech servers?

No. Addutech Archive Studio operates entirely on the client side using WebAssembly and modern browser APIs. All compression and extraction algorithms run locally on your device's CPU and RAM. Not a single byte of your data is sent to our servers.

Are there any file size limitations?

There are no artificial server upload limits. The only restriction is the amount of available memory (RAM) on your computer or device.

Can I extract password-protected RAR or ZIP archives?

Yes. If your archive is password-protected, simply enter the password into the password field before clicking Extract. The WebAssembly engine will decrypt and unpack the archive locally.