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Building a World Map with only 500 bytes

Simon Willison's Blog · 2026-07-04 Cached

Iwo Kadziela created a method to generate a credible ASCII world map using only 445 bytes of data by leveraging deflate compression and JavaScript's DecompressionStream API.

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#world-map

Can you build a recognizable World Map in under 500 bytes?

Hacker News Top · 2026-07-01 Cached

A developer explores creating a recognizable world map in under 500 bytes by using ASCII characters and deflate-raw compression, achieving a 445-byte compressed map despite the uncompressed text being 8,523 bytes.

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