Decompiler for compiled iOS/macOS interface files (.nib, .storyboardc): object tree, wiring, custom classes, navigation graphs
image:https://github.com/tokenbleed/nibkit/actions/workflows/ci.yml/badge.svg[build status,link=https://github.com/tokenbleed/nibkit/actions/workflows/ci.yml]
Decompiler for compiled iOS/macOS interface files. Parses .nib and .storyboardc files (the format real apps ship), extracts object structure, wiring, custom classes, and the navigation graph. Single static Go binary, stdlib only, cross-compiles anywhere. Also runs as an MCP server, so AI coding tools can decode nibs directly.
strings gives you tokens. nibkit gives you relationships: which control fires which selector, which custom class backs which scene, how navigation flows, and what runtime attributes were set.
[source,sh] ---- brew install tokenbleed/tap/nibkit ----
[source,sh] ---- go install github.com/tokenbleed/nibkit@latest ----
Prebuilt binaries for darwin and linux (arm64 and amd64) are on the https://github.com/tokenbleed/nibkit/releases[releases] page. No runtime dependencies.
nibkit mcp speaks the Model Context Protocol over stdio (newline-delimited JSON-RPC, no dependencies), exposing the read-only commands as tools: nibkitwiring, nibkitclasses, nibkitsegues, nibkittree, nibkitall, nibkitinfo. Each takes one path argument (any input the CLI accepts, including .ipa and .app).
[source,sh] ---- claude mcp add nibkit -- nibkit mcp ----
[source,json] ---- { "mcp": { "nibkit": { "type": "local", "command": ["nibkit", "mcp"] } } } ----
From the project README.
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