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Tech riderRev. 20 Sept 2026

rust-wasm-snes

Ch 196.4of 31 SNES Emulators
  1. 1Runs onWeb
  2. 2CostsNot stated by the maker
  3. 3Supported platformsWeb
  4. 4Emulation formatstandalone
3 lines stated Written from the maker's own pages: github.com
Visit site Alternatives
The rust-wasm-snes homepage

Overview

rust-wasm-snes is ranked #19 of 31 in SNES emulators on Specifiction. It runs on Web.

Compared on SNES emulators

Free plan
Yesgithub.com
Supported platforms
Webgithub.com
Emulation format
standalonegithub.com

Facts

Purpose
A cycle-accurate Super Nintendo emulator written in Rust, compiled to WebAssembly, and running in a browser.github.com · 4 Oct 2026
ROM picker
The in-browser ROM picker lists 746 titles via Internet Archive, served through a Cloudflare CORS proxy.github.com · 4 Oct 2026
CPU
The emulator implements all 256 65C816 CPU opcodes with master-cycle accuracy.github.com · 4 Oct 2026
Audio
Its S-DSP implementation supports eight voices, BRR decoding, ADSR/GAIN envelopes, Gaussian interpolation, and eight-tap FIR echo.github.com · 4 Oct 2026
Audio verification
The project compares audio output against blargg’s snes_spc reference implementation using principal-component analysis and reports 1.01× amplitude versus the reference.github.com · 4 Oct 2026
Graphics support
The PPU has partial mode coverage: modes 1 and 3 work, while mode 7 is partial.github.com · 4 Oct 2026
Save states
It serializes full emulator state, including CPU, bus, PPU, APU, and SRAM, into a roughly 484 KB binary snapshot.github.com · 4 Oct 2026
Game compatibility
The README says A Link to the Past works with its overworld and Mode 7, while Super Mario World has a known mode-07 input stall.github.com · 4 Oct 2026
Known limits
Mega Man X boots and plays but has broken audio; Super Mario Kart needs a DSP-1 coprocessor, and Chrono Trigger needs HiROM support.github.com · 4 Oct 2026
Build and run
The README documents a WebAssembly build with wasm-pack and a local Python server at http://localhost:8090.github.com · 4 Oct 2026
Experimental mode
An experimental off-main-thread worker scaffold is provided and requires COOP/COEP headers for SharedArrayBuffer.github.com · 4 Oct 2026
License and ROMs
The project is MIT-licensed; ROM files are not included, and the README says users should bring their own.github.com · 4 Oct 2026
Debugging tools
The project documents trace comparison against Mesen2 and includes tooling for waveform comparison and execution-trace diffs.github.com · 4 Oct 2026
Live demo
The repository links to a live demo with an in-browser ROM picker listing 746 titles via Internet Archive, served through a Cloudflare CORS proxy.github.com · 4 Oct 2026
CPU and sound
The project describes support for all 256 65C816 CPU opcodes and all 256 SPC700 opcodes, with cycle-aware timing and an S-DSP supporting eight voices and BRR decoding.github.com · 4 Oct 2026
Graphics
PPU support is partial: modes 0, 1, and 3 work, while mode 7 is partial.github.com · 4 Oct 2026
ROM requirement
ROM files are not included, and the README says to bring your own; the browser ROM picker uses publicly archived Internet Archive material.github.com · 4 Oct 2026
License
The project is licensed under MIT.github.com · 4 Oct 2026
Build targets
The README documents a browser WebAssembly build and a native build for debug tooling, headless ROM runners, audio comparison, and benchmarking.github.com · 4 Oct 2026
Security and compliance
The repository’s Security and quality tab displays zero.github.com · 4 Oct 2026
Support
The repository exposes GitHub Issues and Pull Requests for project activity.github.com · 4 Oct 2026

Company

Headquarters
Melbourne, Australiagithub.com · 28 Sept 2026

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Where it ranks on Specifiction

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Sources