GZIP Compress/Decompress
Compress and decompress GZIP files online
100% Client-Side • Privacy ProtectedFeatures
- Compress text or files to GZIP format (.gz)
- Decompress GZIP files back to original content
- Real-time compression ratio display
- Download compressed files as .gz archives
- Uses native browser Compression Streams API for fast processing
- All processing happens locally — your data never leaves your device
How to Use GZIP Compress/Decompress
- 1Select Compress or Decompress mode
- 2For compression: paste text or upload any file
- 3For decompression: upload a .gz file or paste Base64 compressed data
- 4Click the compress/decompress button
- 5Download the result or view it directly in the output area
Frequently Asked Questions
What is GZIP compression?
GZIP is a file compression format based on the DEFLATE algorithm. It is widely used for web content compression and file archiving. GZIP typically reduces file sizes by 60-80% for text-based content.
Can I compress any type of file?
Yes! You can compress any file type. However, GZIP works best with text-based files (HTML, JSON, CSV, code). Already-compressed files (JPEG, MP4, ZIP) will not compress much further.
Is the compressed output a valid .gz file?
Yes. When you click Download .gz, you get a standard GZIP-compressed file that can be opened with any GZIP-compatible tool (gunzip, 7-Zip, WinRAR, etc.).
What is the Base64 output shown?
Base64 is a way to represent binary data (like compressed GZIP files) as text. This makes it easier to copy/paste or embed in text-based formats. You can paste this Base64 string back into the Decompress mode to restore the original data.
Does this work offline?
Yes! All compression and decompression happens in your browser using native APIs. No internet connection is required after the page loads.