* [fake-gcs-server v1.56.0](https://github.com/fsouza/fake-gcs-server) – Emulates the Google Cloud Storage API for testing, available as a Go library or standalone server. * [jsbeeb v1.19.0](https://github.com/mattgodbolt/jsbeeb) – JavaScript-based emulator for BBC Micro models including 32K BBC B and 128K BBC Master with peripheral support. * [v86 latest](https://github.com/copy/v86) – x86-compatible CPU and hardware emulator that translates machine code to WebAssembly for browser performance. * [Gopher2600 v0.57.2](https://github.com/JetSetIlly/Gopher2600) – Emulator for the Atari 2600 console with high accuracy, advanced debugging tools, and wide cartridge and peripheral support. * [Parchment 2026.8.23](https://github.com/curiousdannii/parchment) – Interactive Fiction player for the web, with builds for Inform 7 and a site generator supporting multiple story formats.