# hughkli/Lookin

Free macOS app for iOS view debugging.

Repository: https://github.com/hughkli/Lookin
Canonical: https://ross.abutalabs.com/products/lookin
Language: Objective-C
License: GPL-3.0
License Family: copyleft
Last push: 2024-03-28T13:04:22+00:00

## Health v2 (maintenance only)
Score: 23/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 0, release rhythm 8, longevity 100
- inputs: {"age_days": 1614, "days_push": 888, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1452, forks 252 (observed 2026-08-28T04:04:46.461494+00:00)

## What it is
Lookin is a free macOS application for inspecting and modifying the UI views of iOS apps, similar to Xcode's UI Inspector or Reveal. It works together with the LookinServer iOS framework, which is integrated into the app's Debug build via CocoaPods or Swift Package Manager.

## Use cases
- inspect iOS app view hierarchy from a Mac
- debug iOS UI layout issues
- modify iOS views at runtime
- free alternative to Reveal for iOS UI debugging
- view member variables of iOS UI objects
- inspect UIKit views like Xcode UI Inspector

## When to choose
- you need a free Reveal-like UI inspector for iOS development on macOS
- you want to inspect and tweak iOS view hierarchies during Debug builds
- you prefer an open-source iOS UI debugging tool

## When to avoid
- you need to debug views in App Store/Release builds (LookinServer must not be integrated there)
- you develop exclusively for Android or other non-iOS platforms
- you need a debugger integrated directly inside Xcode

## Facets
- artifact type: application
- maturity: active
- function: developer-tools, gui, testing
- domain: mobile-development, developer-tools, apple-ecosystem
- platform: -
- tags: ios-view-debugging, ui-inspector, xcode-alternative, reveal-alternative, lookinserver, macos, ios, desktop

## Member repositories
- hughkli/Lookin (main) score 23

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:04:46.461494+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T04:35:48.285583+00:00, confidence not recorded.
  - readme: https://github.com/hughkli/Lookin (fetched 2026-08-28T04:04:46.461494+00:00, sha 12db32c7e594)
- Data as of 2026-08-30T08:39:29.467469+00:00.