Compression Converters

Convert compressed single-stream archives and byte containers.

Popular Compression Conversions

Stream Compression: GZIP, BZIP2 & ZSTD

Single-file stream compression algorithms and web transfer codecs.

Private by Design

Files are processed locally in your browser with WebAssembly and HTML5 APIs. They never leave your device, so there are no server uploads or third-party file storage.

No Queues. No Speed Caps.

Start converting immediately on your own device - no upload wait, no download queue, and no throttling by a remote server.

Free, Unlimited Access

Use every available tool without creating an account, paying for a plan, or hitting an artificial file-size limit. Convert as often as your browser and device can handle.

Format Comparison & Technical Specifications

Output FormatMIME TypeSpecificationType
GZ IP Streamapplication/gzipRFC-1952-GZIPGNU Zip DEFLATE Stream
BR otli Streamapplication/x-brotliRFC-7932-BROTLIBrotli Web Compression Stream
ZST andard Streamapplication/zstdRFC-8878-ZSTDReal-Time Zstandard Frame
ZZ Raw DEFLATEapplication/zlibRFC-1951-DEFLATERaw DEFLATE Stream Container
LZ4 Streamapplication/x-lz4LZ4-FRAME-SPECUltra-Fast LZ4 Byte Frame
GZ IP Archiveapplication/gzipRFC-1952-GZIPDEFLATE Compressed Stream
ZIP Containerapplication/zipISO-IEC-29500Standard ZIP Archive

Technical Specifications & Codec Breakdown

Compression Codecs vs. Multi-File Archives

A common misconception is that GZIP (.gz) is like a ZIP file. GZIP compresses only a single file or stream. To compress a whole folder on Linux, tools first combine the folder into a single file with TAR, and then compress that file with GZIP (.tar.gz).

Zstandard (ZSTD): The Modern Web & Cloud Standard

Created by Facebook, Zstandard combines the high compression ratios of DEFLATE with blistering decompression speeds (often exceeding 1 GB/s per core), making it the modern standard for database backups and web asset streaming.

Useful info

0 bytes uploaded to external servers. All processing occurred locally in your browser sandbox.