Compress and decompress data using Google's Brotli algorithm (RFC 7932). Tune compression levels from 1 to 11, benchmark size savings, and download .br files.
Modern web compression
Unlike general-purpose compression formats like Gzip and ZIP, Brotli incorporates an internal pre-trained dictionary of HTML tags, common web words, and script tokens.
This architectural advantage yields smaller compressed sizes even on small payloads and single API responses where traditional compressors fail to build an adequate sliding window.
Brotli offers 11 quality levels. While levels 1 to 5 provide extremely fast compression times ideal for dynamic HTTP responses, level 11 produces optimal compression ratios for static files during your deployment build step.
Use this tool to experiment with different quality levels and inspect byte-for-byte size improvements on your web assets.
Brotli is an open-source lossless compression algorithm developed by Google (RFC 7932). It features a built-in static dictionary containing over 13,000 common HTML, CSS, and JavaScript strings. On web text assets, Brotli typically compresses 14% to 25% smaller than standard Gzip.
Brotli quality levels range from 1 (fastest compression, lowest ratio) to 11 (maximum compression, best ratio). Level 4-6 is recommended for dynamic runtime compression, while Level 11 is optimal for pre-compressing static assets in build pipelines.
This tool sends your text or file payload to our high-performance compression service powered by native Node.js zlib Brotli bindings, returning the compressed Base64 string and downloadable .br archive in milliseconds.
Yes. Upload any .br binary file or paste its Base64-encoded representation into the Decompress tab to instantly restore and inspect the original plain text or download the uncompressed file.
