FREEDOM251

Freedom251 › Nintendo DS Emulators

Pilas-melonDS

Free plan Web

Visit Pilas-melonDS Alternatives Pricing

What Pilas-melonDS is

Pilas-melonDS is a free browser frontend for the melonDS Nintendo DS emulator, built with HTML5 and WebAssembly. It opens .nds, .dsi and .srl files and boots in DS mode by default, with experimental DSi mode also available. Controls include keyboard, gamepad and touch input, and rendering options include Canvas 2D, WebGL 2 and WebGPU, with WebAudio output. Cartridge saves and browser save states use IndexedDB, with up to six state slots for each ROM. The frontend can install DSiWare .cia files into DSi NAND or virtual SD storage. DSi camera and microphone input require browser media permissions and a localhost or HTTPS origin. Browser internet mode supplies a limited networking shim, not arbitrary raw UDP/TCP access or HTTPS decryption. Starting the DSi menu requires legally dumped DSi BIOS files and a writable NAND dump; normal DS direct boot can use the built-in FreeBIOS fallback. The project says it does not include Nintendo keys, and encrypted CIA installation requires the user’s legally obtained common key. The repository identifies its license as MPL-2.0.

Who it suits

It suits people looking for a browser-based Nintendo DS emulator frontend, including those who want to try its experimental DSi mode. DSi menu use requires the specified BIOS files and NAND dump.

What it does well

  • Runs in web browsers on desktop and mobile.
  • Offers keyboard, gamepad and touch controls.
  • Supports three rendering choices.
  • Provides up to six save-state slots per ROM.
  • Can install DSiWare .cia files.

What to know first

  • DSi mode is experimental.
  • Browser networking cannot provide arbitrary raw UDP/TCP internet.
  • DSi menu boot needs BIOS files and a writable NAND dump.
  • Encrypted CIA installation requires the user's common key.

Plans

PlanBilled and limitsPrice
FreeNo paid plans or usage limits are stated on the project pageFree

As github.com lists them, read 2 Oct 2026. The maker's own page has the final word.

Getting started

  1. Visit https://github.com/josepilas/pilas-melonds.
  2. Build the app with Emscripten as described in the project README.
  3. Serve the generated app locally over HTTP.
  4. Open the app in a desktop or mobile web browser.
  5. Load a supported .nds, .dsi, or .srl ROM file.

Verdict

Pilas-melonDS provides a browser frontend with multiple controls, rendering options and save-state slots. Its DSi and networking requirements are important limits to consider before choosing it.

Questions

How much does Pilas-melonDS cost?

The Free plan is priced at $0. No paid plans or usage limits are stated on the project page.

Which devices can run it?

It runs in web browsers on desktop and mobile devices.

Does it support Nintendo DSi?

It offers experimental DSi mode. Booting the DSi menu requires legally dumped DSi BIOS files and a writable NAND dump.

Can I save my progress?

Cartridge saves and browser save states use IndexedDB. There are up to six save-state slots per ROM.

What is the project’s license?

The repository identifies its license as MPL-2.0.

Who makes Pilas-melonDS?

The GitHub profile identifies the maker as José Pilas, a video game developer and influencer.

Facts from Pilas-melonDS's own pages

Build and hosting
The README describes building with Emscripten and serving the generated app locally over HTTP. · github.com, 2 Oct 2026
Camera and microphone
DSi camera and microphone input use browser media permissions and work on localhost or HTTPS origins. · github.com, 2 Oct 2026
Controls
It supports keyboard, Gamepad API, touch controls, and DS touchscreen input. · github.com, 2 Oct 2026
DS and DSi
It targets Nintendo DS mode by default and offers experimental Nintendo DSi mode. · github.com, 2 Oct 2026
License
The repository identifies its license as MPL-2.0. · github.com, 2 Oct 2026
Maker
The GitHub profile identifies the maker as José Pilas and describes him as a video game developer and influencer. · github.com, 2 Oct 2026
Networking
Its Browser internet mode provides a compatibility shim for DHCP, DNS, ARP, and basic TCP/HTTP, while local tabs and a WebSocket bridge are optional alternatives. · github.com, 2 Oct 2026
Network limitation
The browser networking shim cannot provide arbitrary raw UDP/TCP internet or decrypt HTTPS traffic from inside the browser sandbox. · github.com, 2 Oct 2026
Purpose
Pilas-melonDS is an HTML5/WebAssembly browser frontend for the melonDS Nintendo DS emulator. · github.com, 2 Oct 2026
Rendering and audio
The browser frontend offers Canvas 2D, WebGL 2, and WebGPU rendering choices, plus WebAudio output. · github.com, 2 Oct 2026
ROM and DSiWare
The ROM picker accepts .nds, .dsi, and .srl files, and the frontend can install DSiWare .cia files into DSi NAND or virtual SD storage. · github.com, 2 Oct 2026
Security and keys
The project says it does not embed Nintendo keys; encrypted CIA installation requires the user's legally obtained common key. · github.com, 2 Oct 2026
Storage
Cartridge saves and browser save states are stored in IndexedDB, with up to six save-state slots per ROM. · github.com, 2 Oct 2026
System requirements
DSi menu boot requires legally dumped DSi BIOS files and a writable NAND dump; normal DS direct boot can use the built-in FreeBIOS fallback. · github.com, 2 Oct 2026

Where Pilas-melonDS stands on Freedom251

Look at these too