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Pure Dart implementations of LZ4, Snappy, GZIP, and Zstd compression algorithms with no native dependencies.
Last release 3 months ago
26 Jun 2026
Too new to tell
only 2 release windows
Nearly every release is documented
notes for 4 of 4 stable releases
Nothing withdrawn
no release was ever pulled
8 months old
4 releases · first in 2026
One column per month.
crc32: Expose crc32.dart via the public API.
crc32.dart via the public API.LZ4: Lz4Codec.compressBlock/decompressBlock expose the raw LZ4 block format (the bare LZ77 token stream, no frame header/checksum) for containers that
Lz4Codec.compressBlock/decompressBlock expose the raw LZ4 block format (the bare LZ77 token stream, no frame header/checksum) for containers that supply their own framing.Better streaming and more deterministic behavior
Initial release with pure Dart compression implementations (no native dependencies; runs on the Dart VM and dart2js/web)
CompressionStreamCodec, with backpressure and an optional verified (all-or-nothing) mode that withholds output until checksums validateCompressionCodec; CodecFactory.codec/streaming accept maxDecompressedSize/maxBufferSize/verified for central limit enforcementmaxDecompressedSize (cumulative across frames/members); streaming decode is incremental and memory-boundedonFallback hook, and opt-in strict modelibcompress) for all codecs, with atomic output (temp file + rename, cleanup on error) and an opt-in --verified flagYour coding agent can read these notes before it upgrades. Set up the MCP server →