How to use
- Paste Base64 GZIP data or open a local .gz file.
- Run the tool and review the results and status messages.
- Copy the values you need or download the result for reuse.
GZIP Decompressor
Decompress a .gz file or Base64 GZIP data and recover the original bytes.
Processing runs in your browser. Your input and files are not uploaded to DevToolsy.
How it works
Binary output is shown as Base64. Download preserves the original bytes.
H4sIAAAAAAAC//NIzcnJ11Eozy/KSVFUcCrNzElRKM7PTS3JyMxLVygtTk0rzdEDAMo4EiUlAAAAHello, world! Build something useful.Decompress a .gz file or Base64 GZIP data and recover the original bytes.
What to expect
GZIP compresses one byte stream. Base64 is a text representation; it is not compression.
Output
Copy the values you need or download the result for reuse.
Files / decoded Base64: 16 MiB. Text: 1 MiB UTF-8. Output: 64 MiB. Preview: 1 MiB. 30-second timeout.
Frequently asked questions
How is binary output handled?
Binary output is shown as Base64. Download preserves the original bytes.
Can this extract a ZIP archive?
This tool accepts GZIP streams only. ZIP is a different archive format. A .tar.gz file decompresses to a TAR file; it is not unpacked into individual files.
Is the input uploaded?
Processing runs in your browser. Your input and files are not uploaded to DevToolsy.
What are the processing limits?
Files / decoded Base64: 16 MiB. Text: 1 MiB UTF-8. Output: 64 MiB. Preview: 1 MiB. 30-second timeout.
Can I keep the result?
Copy the values you need or download the result for reuse.