A native macOS app that turns your GitHub Stars into a searchable, AI-powered knowledge base. Available on the Mac App Store.
Every developer has been there. Starcat solves these with AI + local-first design.
You starred thousands of repos, but finding one takes forever
Full-text index across repo name, description, topics, and notes. Natural language + structured filters — results in milliseconds.
You revisit a star months later and can't remember why you saved it
AI reads the README and produces a summary: what it does, what problem it solves, what tech stack it uses — your "aha moment" preserved forever.
Manual tagging is tedious; skipping tags means never finding repos again
AI analyzes repo content and suggests 3-8 tags with confidence scores. 14 preset taxonomies, auto synonym detection. Just click confirm.
Your starred libraries release updates — you hear it from others first
Subscribe to repos you care about. Push notifications on new releases. Unified timeline view with read/unread state.
From search to AI analysis, from security scoring to share cards — every detail designed for efficiency.
FTS5 indexes repo names, descriptions, topics, and notes for fast local search. Combine language, tag, and status filters for field-level precision.
Browse built-in collections such as Needs Review, Unmaintained, High Value, No Tags, Using, and Recently Active. Custom rules can combine metadata, status, notes, and Health signals.
AI reads README content and produces structured summaries: what the repo does, its tech stack, and where it fits.
Translate README HTML on demand while preserving the original structure. Cached translations are reused, and stale source content prompts a fresh translation.
Launch AI chat from any repo detail page. Ask in context and get answers grounded in the repository code and docs.
Summarize repository activity, maintenance signals, and risk indicators before you decide what deserves attention.
Integrated OpenSSF Scorecard pulls public security scores for starred repos and presents a radar chart across multiple dimensions.
Explore code architecture without leaving the app. CodeFlow analyzes dependencies and visualizes module call chains for large projects.
Generate personal cards with GitHub stats, theme palettes, and high-resolution PNG export for sharing.
Self-hosted proxy, Gemini, DeepSeek, OpenAI-compatible, and Ollama local models. Your API keys and usage quotas stay under your control.
Full-chain tools from organization to AI analysis, turning your flat star list into a searchable knowledge system.
Custom colors & icons. Batch tagging, merge tags. Browse by tag, language, status.
Write private notes per repo. Tags, notes, and status live in local SQLite, keeping your organization data local-first.
One-click structured summaries. Full README translation. Cached per repo — auto-prompt on source change.
BM25 keyword + Embedding semantic search + RRF fusion. Find by intent, not exact keywords.
Subscribe to repos. Push notifications on new versions. Smart asset filtering by platform & file type.
Browse discovery, trending, popular, new releases, and weekly picks to keep finding repositories worth your attention.
Starcat is built deeply for macOS, focused on desktop workflows for organizing, reading, and turning GitHub Stars into reusable knowledge.
Native macOS design — responsive layout, translucent materials, and focused desktop interactions
GRDB.swift + SQLite local storage — data fully controlled, works offline
Gemini / DeepSeek / OpenAI / Ollama — your keys, your choice
Available on the Mac App Store with Apple-notarized security and seamless updates
Start free. Upgrade to Pro with a 14-day free trial, billed through your Apple ID.
A complete local-first library for managing GitHub Stars.
14-day free trial, then $9.99/month. Subscribe through Apple In-App Purchase.
| Feature | Free | Pro |
|---|---|---|
| Sync, local cache, notes, README | Included | Included |
| Tags, smart collections, release subscriptions | 20 / 4 / 5 | Unlimited |
| Release polling and notifications | Limited | Included |
| AI summaries, tags, Chat, README translation | Not included | Included |
| Semantic search and LLM-friendly web context | Not included | Included |
| RepoContextPacker, CodeFlow, Trending AI | Not included | Included |
| Payment model | Free | 14-day trial, then $9.99/month via Apple IAP |
| Subscription management | Not required | Apple App Store |
Pro subscription is managed entirely through your Apple ID. Manage or cancel anytime in App Store account settings. Questions? dong4j@gmail.com
Everything you need to know about Starcat for GitHub on the Mac App Store.
Starcat supports macOS 15 and later. It is available on the Mac App Store for Apple Silicon and Intel Macs.
Pro is available through Apple In-App Purchase. Open Starcat, go to Settings → Pro, and subscribe. You get a 14-day free trial before being charged.
All subscriptions are managed by Apple. Open the App Store app, click your account, and go to Account Settings → Subscriptions to view, change, or cancel your Starcat Pro subscription.
Open Starcat, go to Settings → Pro, and tap "Restore Purchases." Your Apple ID will verify your subscription and unlock Pro features.
Starcat is local-first. Repo cache, tags, notes, and status are stored in local SQLite on your Mac. GitHub tokens and AI provider keys are stored securely in your Mac's Keychain.
No. Starcat follows a BYOK (Bring Your Own Key) model. You configure your own AI provider keys, which are stored locally in your Mac's Keychain and never sent to Starcat servers.
The short-term focus is making the macOS app stable and useful. Future platform plans will be announced when available.
Download Starcat for GitHub from the Mac App Store and start organizing, searching, and reading your GitHub Stars in one focused desktop app.