SVB Demo Spec Releases Article GitHub

SVB real-world benchmark

1,087 production SVGs (Feather Icons, Bootstrap Icons, Simple Icons — sampled with seed 42), each one optimized with svgo multipass first, then encoded with SVB v0.1. Comparisons are against what a web developer would actually ship, not raw files. Run benchmark/run.mjs to reproduce.

Per source

source	n	median svb/svg	svb < svg+brotli	median svb+br / svg+br

Ratio distribution (svb / svg-optimized)

Best and worst 10

Best (smallest svb/svg)

Worst (still ≤ ×0.53)

All files

file	source	svg (svgo)	svg+br	svb	svb+br	svb/svg

Methodology: svgo multipass · brotli quality 11 · gzip level 9 · SVB with internal DEFLATE when it helps · clean round-trip verified per file · · ← live demo · repo