GZIP & Brotli Decompressor — Auto-Detect, Stream to Disk, Any Size
Drop a .gz or .br file — algorithm auto-detected, decompression starts immediately. Files over 20MB stream directly to your hard drive, bypassing browser memory limits. Nothing is uploaded.
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Frequently Asked Questions
The tool reads the file extension and magic bytes to automatically detect GZIP or Brotli — no manual toggle needed. Just drop the file and extraction starts.
Yes. Files above 20 MB automatically enter Large File Mode, which streams the decompressed output directly to your hard drive via the File System Access API — bypassing browser memory limits entirely. The tab stays responsive throughout.
No. There is no artificial cap. Multi-GB archives are streamed to disk in chunks — your available disk space is the only constraint. Server-based tools that reject large archives are not a problem here.
Yes. Paste any Base64 string into the text input and the tool decodes it to binary, then attempts decompression with both GZIP and Brotli simultaneously — great for debugging API responses or embedded payloads.
No. Decompression runs locally using pako (GZIP) and WebAssembly (Brotli). Your files and their contents never leave your device.