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Smaller images, same picture. Compress PNGs to PNG or WebP with automatic quality. PNG output is 8–12% smaller than TinyPNG at equal quality on the median image. Command line and browser.

  • cli
  • color-quantization
  • image-compression
  • png

The Balanced Routing Table (BART) adapts D.E. Knuth's Allotment Routing Table (ART) algorithm to deliver comparable lookup speeds with superior update efficiency and a significantly smaller memory footprint.

  • ip
  • ipv6
  • cidr
  • ip-routing

Erlang nif for xor_filter. 'Faster and Smaller Than Bloom and Cuckoo Filters'.

  • xor-filter
  • bloom-filter
  • erlang-nif
  • erlang

Cold storage that queries like hot storage. High-ratio JSONL compressor with block-level random access. Query cold storage in seconds — no restore, no full decompression. 5–13% ratio on JSONL logs, 25–57% smaller than gzip. 1-hour window via DuckDB in under 6s. Free for personal and open-source use.