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Vellum

A free generative art piece — play it in your browser, no install. An atelier of imaginary cartography: procedural fantasy atlases as deterministic SVG.

by @ahl-gram · ahl-gram/Vellum on GitHubLANG TypeScript★ 1HOSTED ON VELLUMWORLDS.COMUPDATED 21 Aug 2026

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From the README

An atelier of imaginary cartography.

Vellum lives at . No install, no account: the whole engine runs client-side in your browser.

Vellum surveys worlds that don't exist and drafts them as atlas charts. Give it a seed and it invents a landmass, simulates the rain that carves its rivers, grows its forests, founds its harbor towns, names everything in one of ten invented languages, and partitions the land into quarrelsome realms.

Read the full README on GitHub →

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