Projects

objdiff compares object files across functions and data. It supports ARM, ARM64, MIPS, PowerPC, SuperH, and x86(-64). It provides a GUI, TUI, and JSON output for integration with other tools and agentic workflows.

The core diffing engine compiles to WASM and runs as a web frontend in decomp.me and as a VS Code extension. Its progress reporting system powers decomp.dev.

decomp.dev tracks progress for more than 80 decompilation projects. With data driven by objdiff’s progress reports, it provides granular information down to individual translation units and functions, plus a tree view for exploring project structure. Projects can categorize units, track multiple game versions, and navigate full commit-by-commit history.

All of this information is also exposed through its API, along with a badge system for embedding live progress in project READMEs.

wibo runs 32-bit Windows command-line tools with minimal overhead. It implements a substantial portion of the Win32 API: file I/O, threading, heap management, DLL loading, TLS, and async I/O with platform-specific backends (io_uring, epoll, kqueue).

On 64-bit hosts, it constrains the guest address space to the lower 2GB and bridges calling conventions with generated trampolines. Runs on macOS under Rosetta 2.

decomp-toolkit takes a compiled binary and produces fully relinkable objects. Its analyzer handles function and object boundary detection, signature analysis, and rebuilding relocations, all with minimal configuration. dtk-template is a project template and build system built on top of decomp-toolkit.

Its approach to matching decompilation has since been applied to other platforms, including ds-decomp for Nintendo DS and jeff for Xbox 360.

nod supports reading and converting all GameCube and Wii disc image formats, with a simple and performant API. Open any disc image and get a Read + Seek + BufRead handle. Converting to ISO is just reading from that handle and writing to a file, regardless of the source format. Open a partition and get the same interface, transparently handling Wii encryption and hashing.

Reading and writing are multithreaded, and nod produces smaller disc images faster than both Dolphin and NKit v2. C bindings are available for FFI.

powerpc-rs is driven by a declarative instruction set definition that is compiled into Rust at build time, similar to LLVM’s TableGen. It supports the full PowerPC instruction set along with Gekko/Broadway paired singles (GameCube/Wii) and Xenon VMX128 (Xbox 360) extensions.

The disassembler has been fuzzed over all 4.29 billion possible 32-bit instruction values and runs at ~275M instructions per second.

ghidra-panel integrates with Ghidra Server through an in-process gRPC plugin, allowing repository administrators to manage users and permissions. Users authenticate with Discord and can request repository access, sending a notification with a one-click approval link for admins.

Aurora reimplements the GX API, translating the calls to native graphics backends like Vulkan, Metal, D3D12, and WebGPU.

Metaforce (formerly URDE) started as a passion project reimplementing parts of the Metroid Prime engine, and eventually transformed into a nearly-complete non-matching decompilation.

Project website