Offline
›roadmap q3
Instant file search
Find any file in milliseconds, fully offline. Filter by type, date, or path as you type.
The AI command bar for Windows.
Your whole PC, one keystroke away. LucidArc is Raycast for Windows, enriched with AGI 01. Find files, do the math, convert anything, command your apps, and ask AI without lifting your hands from the keyboard.
Free · No account · ~50 MB · Windows 10 & 11
LucidArc
Ctrl+Space
Search
↑↓Navigate↵Run
EscDismissWindows 10 & 11< 50 MB install~100 MB RAM64-bitOpen source · MITNo sign-up
One bar, everything
Type it. It just happens.
No menus, no windows, no context-switching. Every action lives behind the same hotkey, and the bar figures out what you mean.
Offline
›(1920 * 1080) / 1.5
Calculator & math
Evaluate expressions, roots, and arithmetic inline. The answer is ready to copy on Enter.
Offline
›1,250 usd in eur
Units & currency
Convert money and measurements the instant you type them. No tab, no lookup, no math.
Online
›who won the grand prix today?
AI web search
End any question with “?” and AGI 01 answers it from the live web, right inside the bar.
Online
›translate to japanese · summarize · rewrite
Natural-language AI
Translate, draft emails, write and refactor code, or summarize. All in place, in seconds.
Offline
›Ctrl + K → clipboard history
Clipboard with AI
A searchable, pinnable history. Reshape any entry on the spot: translate, refactor, or rewrite.
PlusApp launcherRGB → HEXSystem commandsColor pickerNo account
Keyboard-first
Ten fingers. Zero mouse.
LucidArc is designed to disappear. Summon it, type your intent, and act without your hands ever leaving home row. If you have lived in Spotlight or Raycast on a Mac, you already know the feeling. Now it is native to Windows.
Ctrl+Spaceto summon, from anywhere
- Summon LucidArc anywhereCtrl+Space
- Move through results↑+↓
- Run the selected action↵
- Autocomplete the queryTab
- Open clipboard historyCtrl+K
- Open settingsCtrl+,
- Dismiss the barEsc
See it move
Real product. Not a render.
Every screen below is the actual app running on Windows: search, AI, web, and conversions in their native command bar.
Presentation
01CtrlSpace
Summon it
One global hotkey brings LucidArc to the front of any window.
02type
Type anything
A filename, a sum, a currency, or a question for AGI 01.
03↵
Run it
Press Enter. The result is done, copied, or open.
Under the hood
Light, local, and yours.
Faster than thought
Built in Go with native Windows APIs and a Wails core. It cold-launches instantly and sips around 100 MB of RAM.
Works offline
Search, calculator, conversions and app launching need no connection at all. AGI 01 only reaches out when you actually ask it to.
Private by default
No account, no sign-up wall. AI requests are end-to-end encrypted, and the whole app is open source under the MIT licence.
Questions
Good to know.
Is there a Raycast for Windows?
Yes. LucidArc is a keyboard-first command bar built natively for Windows, in the spirit of Raycast and Spotlight on the Mac. One hotkey gives you instant file search, a calculator, currency and unit conversion, a clipboard manager, app launching, and AGI 01 for AI, all without ever touching the mouse.
Is LucidArc free?
Yes, and it stays free. LucidArc is free to download and use, with no account, no sign-up, and no paywall, and the app is open source under the MIT licence.
Does LucidArc work offline?
Yes. File search, the calculator, unit and currency conversion, and app launching all run fully offline. The AI features (web search, translation, writing, and code) connect only when you ask them to, and those requests are end-to-end encrypted.
What can the AI do?
Powered by AGI 01, LucidArc can translate text, draft emails, write and refactor code, and summarize. End any query with a question mark to search the live web with AI, right inside the bar.
What are the system requirements?
LucidArc runs on Windows 10 (version 2004 or newer) and Windows 11, 64-bit. It needs around 100 MB of RAM and less than 50 MB of disk space. It is so light that it runs smoothly on just about any PC, even an older, slower laptop that struggles with everything else.
How do I open LucidArc?
Press Ctrl + Space from anywhere in Windows to summon the command bar. Start typing, use the arrow keys to choose a result, and press Enter to run it. Press Esc to dismiss.
v1.0.2 · Alpha
Put your keyboard to work.
Download LucidArc, press Ctrl + Space, and never dig through menus again. Free forever, no account required.
Windows 10 (2004+) & 11 · 64-bit · ~50 MB