Compress or restore one local gzip file with bounded output.
Your input
Outputs are cleared when the input changes.
Result
Enter your data or use the example, then run the tool.
Worked example
The sample creates a generated text file for compression. Download it, select decompress and reupload the .gz to verify a round trip.
Method
Pako gzip compresses the actual bytes. Inflate streams output chunks with a cumulative byte/ratio guard before assembling the result. This is a single stream, not a multi-file ZIP archive.
Limits
Input ≤10 MiB, restored data ≤32 MiB and ≤100× compressed size. Highly repetitive legitimate files can hit the ratio guard. Gzip only for restoration; no ZIP, password encryption, original filename recovery or multi-file packaging. Compression may increase size.
All work stays in this browser. Each disposable worker is terminated after 2.5 seconds or cancellation. Inputs and processing logs are not sent to analytics.
Your inputs stay on this device. Only optional, consented page visits are measured. Input values, files, filenames and processing logs are not sent to Analytics.
When switching languages, text, settings and selected files are temporarily kept on this device. Transfers are removed after restoring; interrupted transfers are cleaned up on a later visit. Inputs and files are never uploaded.