GZIP Compressor
Compress text to GZIP (base64-encoded) or decompress it back, entirely in your browser using the native Compression Streams API.
Result
Enter input and click Compress or Decompress to see the result.
How to Compress or Decompress GZIP for Free
1. Choose Compress or Decompress.
2. For Compress, paste any text; for Decompress, paste a base64-encoded GZIP string.
3. Click the action button to run it instantly in your browser.
4. Copy the result — compressed output is shown as base64 text so it's easy to paste elsewhere.
Runs in Your Browser, No Library Download
This uses your browser's built-in Compression Streams API, not a downloaded library — everything runs locally and nothing is ever sent to a server.