zstd.zigNative Zig Compression Library

A complete native Zig implementation of Zstandard compression. No C bindings, no dependencies. Supports compression, decompression, streaming, and dictionary-based operations for Zig 0.16.0+.

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API Reference

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Pure Zig Implementation

Complete native Zig reimplementation of Zstandard. No C bindings, no external dependencies. Every byte is Zig.

One-Shot Compression

Simple compress and decompress functions. Use compressWithLevel for numeric levels 1-22 or compressWithOptions for fine control.

Reusable Contexts

CompressionContext and DecompressionContext types that can be initialized once and reused across multiple operations. Set parameters, reset, and compress again.

Streaming Support

StreamingCompressor and StreamingDecompressor for chunk-based processing. Handle data that doesn't fit in memory with incremental compression via EndDirective.

Dictionary Compression

Dictionary and DictionaryBuilder types for dictionary-based compression. Train dictionaries from samples via train, trainCover, trainFastCover.

Frame Inspection

Frame inspection via isFrame, getFrameHeader, getFrameContentSize, findFrameCompressedSize and isSkippableFrame without decompressing.

Cross-Platform

Works on Linux, Windows, macOS, and FreeBSD. Supports both 32-bit and 64-bit architectures including aarch64.

Idiomatic Zig API

Options structs, enums, and comptime features. The API feels natural in Zig with named parameters and clean error handling.