Macsurf, "modern" web browser for macOS 9
MacSurf is a new web browser designed for Classic Mac OS 9, specifically for PowerPC machines. It supports modern web technologies like CSS3 and ES5 JavaScript, although it is still in early alpha and not fully functional for daily use. The project aims to revive web browsing on older Macs by providing a native solution without relying on proxies or remote terminals.
- ▪MacSurf runs on a G3 iMac and supports TLS 1.2 and JavaScript execution.
- ▪The browser is still in early alpha, meaning many modern web features are not yet supported.
- ▪It is the first browser on Mac OS 9 to implement native CSS Grid and ES5 JavaScript.
Opening excerpt (first ~120 words) tap to expand
The modern web, on a 25-year-old Mac. MacSurf is a web browser for Classic Mac OS 9 PowerPC. CSS3, ES5 JavaScript, PNGs with alpha, running on a G3 iMac. WarningMacSurf is early alpha. It runs, it renders, it talks TLS 1.2 natively to real HTTPS sites (as of May 2026), and it executes JavaScript on a 233 MHz G3. That doesn't mean it's ready for daily driving — most of the modern web still won't work in it. Heavy SPAs, modern CSS features we haven't shipped, missing form interactions, slow JS on real hardware. Plenty is rough. But it's ready for people to try. If you've got a Power Mac G3 or G4 sitting around, please load it and see what breaks. Bug reports and screenshots from real hardware are exactly what this project needs.
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Excerpt limited to ~120 words for fair-use compliance. The full article is at GitHub.