Free Online ZIP & File Tools

ZIP creator, ZIP extractor, Base64 converter, file hash checker, and size analyzer. All in your browser — no uploads, no sign-ups.

Tools

Zip Creator

Upload multiple files and create a ZIP archive. Choose compression level — store, fast, normal, or max.

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Zip Extractor

Upload a ZIP file, view its contents with sizes, and extract individual or all files instantly.

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Base64 Converter

Convert files to Base64 strings or decode Base64 back to files. Auto-detect MIME types and preview images.

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File Hash Checker

Compute SHA-1, SHA-256, SHA-512 hashes. Compare against expected hash to verify file integrity.

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File Size Analyzer

Upload multiple files or folders. See size distribution charts, type breakdown, and statistics.

Open tool

How It Works

Step 1

Choose a Tool

Pick from 5 tools — zip creator, extractor, base64, hash checker, or file analyzer.

Step 2

Upload & Configure

Upload files via picker or drag-and-drop. Set compression levels, hash algorithms, or encode/decode mode.

Step 3

Download & Verify

Download results or copy to clipboard. All processing happens in your browser — nothing is uploaded.

FAQ

Is FreeCompressKit really free?

Yes, 100% free. No sign-up, no usage limits. Use all tools without any restriction.

Is my data safe?

Absolutely. All processing happens entirely in your browser. No files are ever sent to any server.

What ZIP compression methods are supported?

FreeCompressKit supports Store (no compression) and DEFLATE compression via the browser's CompressionStream API.

Which hash algorithms are available?

The File Hash Checker computes SHA-1, SHA-256, and SHA-512 hashes using the Web Crypto API.

Can I extract password-protected ZIP files?

Not currently. The extractor supports standard non-encrypted ZIP files with Store and Deflate compression.

Do I need to install anything?

No. FreeCompressKit works entirely in your browser. No downloads, no extensions, no sign-up required.

Free Online ZIP & File Tools

ZIP creator, ZIP extractor, Base64 converter, file hash checker, and size analyzer. All in your browser — no uploads, no sign-ups.

Tools

Zip Creator

Upload multiple files and create a ZIP archive. Choose compression level — store, fast, normal, or max.

Open tool

Zip Extractor

Upload a ZIP file, view its contents with sizes, and extract individual or all files instantly.

Open tool

Base64 Converter

Convert files to Base64 strings or decode Base64 back to files. Auto-detect MIME types and preview images.

Open tool

File Hash Checker

Compute SHA-1, SHA-256, SHA-512 hashes. Compare against expected hash to verify file integrity.

Open tool

File Size Analyzer

Upload multiple files or folders. See size distribution charts, type breakdown, and statistics.

Open tool

How It Works

Step 1

Choose a Tool

Pick from 5 tools — zip creator, extractor, base64, hash checker, or file analyzer.

Step 2

Upload & Configure

Upload files via picker or drag-and-drop. Set compression levels, hash algorithms, or encode/decode mode.

Step 3

Download & Verify

Download results or copy to clipboard. All processing happens in your browser — nothing is uploaded.

FAQ

Is FreeCompressKit really free?

Yes, 100% free. No sign-up, no usage limits. Use all tools without any restriction.

Is my data safe?

Absolutely. All processing happens entirely in your browser. No files are ever sent to any server.

What ZIP compression methods are supported?

FreeCompressKit supports Store (no compression) and DEFLATE compression via the browser's CompressionStream API.

Which hash algorithms are available?

The File Hash Checker computes SHA-1, SHA-256, and SHA-512 hashes using the Web Crypto API.

Can I extract password-protected ZIP files?

Not currently. The extractor supports standard non-encrypted ZIP files with Store and Deflate compression.

Do I need to install anything?

No. FreeCompressKit works entirely in your browser. No downloads, no extensions, no sign-up required.