How to use
- Choose UTF-8 text, Base64 bytes or a local file.
- Run the tool and review the results and status messages.
- Copy the values you need or download the result for reuse.
GZIP Compressor
Compress text or files into GZIP and download the bytes or copy Base64.
Processing runs in your browser. Your input and files are not uploaded to DevToolsy.
How it works
GZIP compresses one byte stream. Base64 is a text representation; it is not compression.
Hello, world! Build something useful.H4sIAAAAAAAC//NIzcnJ11Eozy/KSVFUcCrNzElRKM7PTS3JyMxLVygtTk0rzdEDAMo4EiUlAAAACompress text or files into GZIP and download the bytes or copy Base64.
What to expect
Yes. GZIP adds a header and checksum, so small or already compressed files can grow. The result shows input and output sizes before you download.
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
Is Base64 the same as GZIP compression?
GZIP compresses one byte stream. Base64 is a text representation; it is not compression.
Can compressed output be larger than the input?
Yes. GZIP adds a header and checksum, so small or already compressed files can grow. The result shows input and output sizes before you download.
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.