Copper: Mac App by shadcn for Managing Prompts and Scratchpad Notes

X postshadcnAnnouncement

shadcn has launched Copper, a Mac application designed to capture scratchpad notes, links, and upcoming prompts while working with AI tools. It combines features of a clipboard, scratchpad, and to-do list.

Key points

  1. Copper serves as a scratchpad, clipboard, and to-do list designed for workflows alongside ChatGPT, Claude, Cursor, and terminals.
  2. Users can queue up follow-up prompts while an AI generation is in progress and check them off once used.
  3. The app is accessible via a keyboard shortcut, which can be remapped in settings.
  4. Copper operates entirely locally without account creation, tracking, or cloud synchronisation.
  5. The software is sold as a one-time purchase priced at $39.

Why it matters

Juggling multiple AI chat interfaces and IDEs frequently results in scattered snippets and lost context. Copper streamlines prompt queuing and note capture without relying on external cloud backends.

Analysis

Copper targets the specific friction of multitasking across several LLM interfaces. Emphasising local-only data handling and a single purchase model provides a distinct alternative to standard subscription-based utility apps.

Original post

shadcn

@shadcn · 29 July 2026

Launching Copper, a Mac app for capturing things you want to keep and prompts you want to try next while working with AI. The more I use AI, the more I find myself collecting little things I don't want to lose. You're in ChatGPT and think, "I'll need this later," but you don't t.co/RTmKFTAlP8

3.4k likes308 replies3.2k bookmarks603.4k views

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More posts in the thread (3)
  1. t.co/yzbZCKRWD1
  2. @VKoukoutis You can change the shortcut under Copper settings. Map it to a different key.
  3. t.co/KAk05AqB6c
Selected replies (5)
  • @muneebcodes @shadcn This workflow looks really clean. Storing your prompts, files and other data while working with AI chatbots is really helpful Too bad that I am a Windows user
  • @VKoukoutis @shadcn Hey @shadcn , conflict found. Webstorm uses double left shift to open the search template, although if you had Copper open it will try to copy selected text instead. How to resolve that?
  • @anita_zero_one @shadcn Really good idea and great execution as usual. Although price is effectively higher as I'm checking out now. Still thinking.. t.co/o9agfsPxD1
  • @benjamin_ACD @shadcn Possible to get screenshots involved?
  • @anita_zero_one @shadcn Have been enjoying Copper a lot! Nice work! A few things that I have noticed, and I'm not sure if these are intentional or not: 1. 'Esc' closes Copper only when cursor is inside the input field. Otherwise, even when app is focused, it does not work. 2. When I'm selecting

Mentioned links

Summary generated by AI (Gemini 3.8 Flash, 27 September 2026). It may contain errors – the original source is authoritative.

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  • Mattersburg
    Johann Nepomuk Bergerstraße 7/2/14
    7210 Mattersburg, Austria
  • Vienna
    Ungargasse 64-66/3/404
    1030 Wien, Austria

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