An OS 9 browser that loads the modern web.

MacSurf is a native web browser for Classic Mac OS 9 — real CSS3, modern JavaScript (ES2023 via macQJS), and native TLS 1.3, running on a 25-year-old Mac.

Get MacSurf ↗ Source on GitHub →

MacSurf rendering CSS radial gradients on Mac OS 9

// get it

Get MacSurf.

Current release: MacSurf 1.68 “macQJS” — the old ES5 engine is gone, replaced with a QuickJS port that runs real ES2023 JavaScript on-device. Downloads, release notes, and full source live on GitHub.

Releases & downloads ↗ Source on GitHub ↗

Runs on a Power Macintosh G3 / G4 under Mac OS 9.1–9.2.2. Expand the StuffIt archive with StuffIt Expander and double-click to launch.

On a Mac OS 9 machine itself? GitHub doesn't render on-device yet — grab new builds from the plain HTTP edition of this site instead.