Observed arrival · 2026-09-02
Sashfold, the browser engine with nowhere to hide
An experimental web browser engine written from scratch in C++23, including its HTML, CSS, layout, font, networking, and image-codec systems.
○Open
⊠Login
$Paid
†Ads
✦Pretty
●Pro
◎Niche
◉Human
⚑Risk
ƒJS
Field notes
The engine is organized as a single repository covering URL parsing, HTTP/1.1, inflate, parsing, cascade, layout, painting, fonts, and rasterization. Its reported compatibility figures include 100% of the listed html5lib tokenizer and tree-construction tests, alongside 46.3% of the WPT CSS reference tests. The project also describes a nightly “Sashfold 100” run using pages drawn from the Tranco ranking.
Observed signals
Read the marks
Editorial observations of this landing page, not a rating.
○OpenPublic substance visible
✦PrettyNotable craft visible
●ProPolished or operationally mature
◎NicheUnusually specific use
One card from the complete issue