# objdiff

> Compare functions and data in reference and rebuilt object files to guide matching decompilation. Displays instruction-level differences, demangles C++ symbols, and can rebuild when source files change.

- Type: Tool
- Targets: Binary · Game
- Category: Game analysis tools
- Relationship: Foundation tool
- Sources reviewed: 2026-10-16
- Added to the catalog: 2026-10-16
- Original resource: <https://github.com/encounter/objdiff>
- Primary source: <https://github.com/encounter/objdiff/blob/eed74b99c4e94dd154882259931201badc6fdbd1/README.md>
- Catalog page: <https://awesomerea.org/resources/objdiff/>
- Record JSON: <https://awesomerea.org/resources/objdiff/record.json>
- Chinese version: [简体中文](https://awesomerea.org/zh/resources/objdiff/index.md)

## Requirements & limits

- Provide reference and rebuilt object files. Project integration and automatic rebuilding use objdiff.json plus a working toolchain and build command; direct CLI comparisons can use file paths.
- v3.8.2 provides GUI binaries for Windows/Linux x86_64 and macOS arm64/x86_64, with additional CLI targets. Building from source requires Rust. Supported architectures include ARM, ARM64, MIPS, PowerPC, SuperH, and x86/x86_64.

## Primary sources

1. <https://github.com/encounter/objdiff/blob/eed74b99c4e94dd154882259931201badc6fdbd1/README.md>
2. <https://github.com/encounter/objdiff/releases/tag/v3.8.2>
3. <https://github.com/encounter/objdiff/blob/eed74b99c4e94dd154882259931201badc6fdbd1/objdiff-cli/src/cmd/diff.rs#L83-L90>

## More in Games

- [decomp-permuter](https://awesomerea.org/resources/decomp-permuter/index.md) · Tool
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- [UE Explorer](https://awesomerea.org/resources/ue-explorer/index.md) · Tool
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## About this entry

The description was reviewed against primary sources.
Original editorial content: MIT. Linked projects, papers and assets retain their own rights and licenses.