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Zlib / Gzip / Deflate / Brotli

Zlib / Gzip / Deflate / Brotli, processed in your browser with copy and download.

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Zlib / Gzip / Deflate / Brotli

Processing stays in this browser. Your input is not uploaded.

Input and keys stay in a browser Worker. Characters not representable in the selected encoding are rejected instead of silently replaced. Decompressed data is limited to 1,000,000 bytes; corrupted streams are rejected. Brotli loads a local WASM asset on first use.

41 / 100,000

Processed content stays in this page’s memory and cannot be recovered after clearing or closing.

About this tool

Zlib / Gzip / Deflate / Brotli, processed in your browser with copy and download. Input and keys stay in a browser Worker. Characters not representable in the selected encoding are rejected instead of silently replaced. Decompressed data is limited to 1,000,000 bytes; corrupted streams are rejected. Brotli loads a local WASM asset on first use. Input and output are not uploaded. Metrics contain only status, duration, count and copy/download actions.

How to use

  1. Load the example or enter input and select an operation.
  2. Run the tool; cancel at any time.
  3. Review, copy or download the TXT result. Editing clears old output.

Frequently asked questions

What happens to invalid input?

Invalid formats, out-of-range numbers and oversized outputs are rejected. Follow the example; inputs are not silently repaired.

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