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![](https://user-images.githubusercontent.com/4441470/224455560-91ed3ee7-f510-4041-a8d2-3fc093025112.png) Soenneker.Compression.Zstandard\n### A utility library for Zstandard compression and decompression\n\n## Installation\n\n```\ndotnet add package Soenneker.Compression.Zstandard\n```\n\n## Implementation notes\n\nThis package is a fully managed C# Zstandard implementation (no native `libzstd`, no external binaries).\n\nCurrent codec status:\n- Strict Zstandard frame format writing/reading with checksum support.\n- Compression emits valid `.zst` frames using fast RAW/RLE block paths (single-threaded).\n- Decompression supports RAW/RLE frame blocks and validates frame checksums.\n- Compressed entropy-coded blocks are not implemented yet.\n\n## Usage\n\n```csharp\nusing Soenneker.Compression.Zstandard.Abstract;\n\n// via DI\nbyte[] compressed = zstandardUtil.Compress(data);\nbyte[] decompressed = zstandardUtil.Decompress(compressed);\n```\n\nAllocation-free hot path:\n\n```csharp\nint max = zstandardUtil.GetMaxCompressedLength(source.Length);\nSpan\u003cbyte\u003e compressed = max \u003c= 4096 ? stackalloc byte[max] : new byte[max];\n\nif (zstandardUtil.TryCompress(source, compressed, out int compressedBytes))\n{\n    Span\u003cbyte\u003e decompressed = new byte[source.Length];\n    zstandardUtil.Decompress(compressed[..compressedBytes], decompressed);\n}\n```\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fsoenneker%2Fsoenneker.compression.zstandard","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fsoenneker%2Fsoenneker.compression.zstandard","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fsoenneker%2Fsoenneker.compression.zstandard/lists"}