Prompt library for macOS⌥ SpaceBuy $29.99

Migi saves your best AI prompts as templates with blanks. Press ⌥ Space in any app, fill the blanks, and paste into ChatGPT, Claude or anything else. The prompt is great every time, because you only wrote it once.

  • Launch ⌥ Space
  • Templates 80 included
  • Built with SwiftUI
  • Storage Your Mac
  • Requires macOS 15.5+
One-time purchase Buy Migi $29.99
Fig. 1Search. Fill. Copy.
About five seconds.

Watch it work

  1. ⌥ Space Summon Migi over any app
  2. Type blog and press ↵
  3. Fill topic, audience, tone
  4. ↵ copies, ⌘V pastes
Fig. 2
You write this onceMigi fills the blanks
every time after

Write it once

Write a FRIENDLY blog post about REMOTE WORK for FOUNDERS. Open with a hook and end with one clear ask.

Every blank becomes a field in a clean form. No syntax to remember, no values to hunt down. Fill, press ↵, done. Same structure tomorrow, new details.

80Templates in the box, ready on day one
1Shortcut to remember. ⌥ Space
0Subscriptions. Pay once, keep it
5sFrom idea to pasted prompt
Fig. 3The same job,
done two ways

Six steps become three

The manual way

  1. Open a text file or notes app
  2. Find your old prompt from last week
  3. Copy the whole thing to a new document
  4. Hunt for the values you need to change
  5. Replace each one by hand and hope you got them all
  6. Copy it and paste into your AI chat

The Migi way

  1. Press ⌥ Space
  2. Type blog, press ↵
  3. Fill three blanks, press ↵ to copy

Same structure, new values, every time. No scattered versions, no missed changes.

Fig. 4Browse them all
before you buy

80 templates, 9 shelves

Migi ships with ready-made prompts for every kind of work. Use them as they are or bend them to fit.

Fig. 5Built for how
you actually work

Small tool, sharp edges

{{>API Standards}}

Fragments

Write your coding standards or company context once and reference it in any prompt. Update the fragment and every prompt using it changes too.

text · list · number · date · url

Typed blanks

Single line, multi-line, pick-one, pick-many, number, email, date and URL fields, each validated before you copy.

{{ to|

Smart autocomplete

Type {{ and Migi suggests your existing blanks and fragments. Reuse names without memorising them.

line 4: unclosed {{

Syntax checking

Broken placeholders and bad references are caught as you type, with line numbers and plain explanations.

SwiftUI · SwiftData

100% native

No Electron, no web wrapper. Real macOS windows, animations and keyboard handling that feel instant.

⌘C on Mac · ⌘V on iPhone

Universal clipboard

Copy a finished prompt on your Mac and paste it on your iPad or iPhone with Handoff.

$29.99

Get Migi

Pay once. No subscription, no account. Your prompts stay on your Mac. Instant download for macOS 15.5 and later.

Download for Mac →