Atelier
A studio for every app you build, from first idea to shipped release.
Direct download, notarized · In development · What is new · Privacy
Overview
Atelier is a native macOS studio for developers and makers who want a single home for every app idea, project, and release. Each project gets one workspace that carries it through a clear arc: Brainstorm, Roadmap, Releases, and Feedback, with Details and Notes alongside, and feedback flows back into the roadmap so nothing is lost between stages.
Everything is offline-first and local-only. Your portfolio lives in a plain JSON file in Application Support, outside the app bundle, written atomically so a crash mid-save cannot corrupt it, and reinstalling never touches your data. Optional iCloud Drive sync copies that file across your Macs, and data is only ever copied, never deleted.
Bring-your-own-key AI is the connective tissue. Connect Anthropic, OpenAI, Gemini, OpenRouter, or any custom OpenAI-compatible endpoint, and AI buttons help you brainstorm, plan, and refine; with no key connected, a local heuristic keeps the flow working offline. You can attach mockups, link a project to its code folder and hand off tasks to a coding agent, pull a real icon from any installed app, and export a single self-contained backup. Built with Tauri 2, so it stays light and fast. No account, no telemetry, no server.
Features
Every project, from idea to release.
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Idea-to-release workspaces
Each project moves through Brainstorm, Roadmap, Releases, Feedback, Details, and Notes. Feedback flows back into the roadmap, so the loop closes instead of leaking.
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Bring-your-own-key AI
Connect Anthropic, OpenAI, Gemini, OpenRouter, or any custom OpenAI-compatible endpoint. Keys live in the macOS Keychain, are read in Rust only when an AI action runs, and never reach the webview. With no key connected, a local heuristic produces offline drafts so the flow still works.
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Local-only storage
A plain JSON file in Application Support, written atomically (temp file then rename). Reinstalling never touches it, and there is no account or server.
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Optional iCloud Drive sync
Point your live data at an iCloud Drive folder to sync across your Macs. Data is only ever copied between locations, never deleted, whether sync is on or off.
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Mockups and real icons
Attach HTML, PDF, or image mockups per project, browse them as thumbnails, and pull a real app icon from any installed app.
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Code-folder handoff
Link a project to its code folder and write an ATELIER-TASKS.md so a coding agent can read the current plan straight from the repo.
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Single-file backup
Export and import one self-contained backup, JSON with embedded mockups, through native Save and Open dialogs. Reveal the data folder in Finder anytime.
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Local release reminders
A scheduled release can fire a local macOS notification while your Mac is awake. No server involved, and the in-app due indicator always shows.
Version history
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1.0.028 June 2026
First Developer ID signed release. Idea-to-release workspaces (Brainstorm, Roadmap, Releases, Feedback, Details, Notes), local-only atomic JSON storage, and bring-your-own-key AI across Anthropic, OpenAI, Gemini, OpenRouter, and custom endpoints with an offline heuristic fallback.
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0.9.027 June 2026
Added optional iCloud Drive sync that copies your data across Macs without ever deleting it, plus a sync-status pane and background sync polling.
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0.8.027 June 2026
Reworked the project grid and Details view, added per-project mockup import with thumbnails, and code-folder linking with an ATELIER-TASKS.md handoff for coding agents.
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0.7.024 June 2026
Single-file backup and restore (JSON with embedded mockups), pull a real app icon from any installed app, and local notifications for scheduled releases.
Privacy
Your data stays on your device
Atelier keeps everything on your Mac in a local JSON file, with no account and no telemetry. Nothing leaves your device unless you choose it: if you connect your own AI key, the prompt and the project content you act on go directly to that provider; if you turn on iCloud sync, your data file is copied to your own iCloud Drive. API keys live in the macOS Keychain, not in the data file.
Read the full privacy policy →