Halo Preview · free during Preview
halo·~/projects·● connected·halo-orbit-preview·preview

Computer control at the speed of thought.

Ask for everyday computer tasks in plain English. Halo turns them into clear steps and runs them on your machine, near-instantly, at a fraction of the compute of AI agents.

macOS and Linux · uses your Memcode account · Inspect script · Docs

Ultra-low latency

Built for milliseconds.

Ultra-low cost

Tiny models. Tiny cost.

◯ find the 10 largest PDFs in Downl connection opens while you type
● connectednothing you typed has been sent
↵ Entersent over the open line
⟳ Find files · PDF · in Downloads · largest first · top 10read in one pass
84 MB site-survey-scans.pdfrun on your machine
41 MB annual-report-2026.pdf
halo · ~/projects · ● connected · halo-orbit-preview

Compact, purpose-built models, instead of a giant one generating its answer word by word.

Say it your way

Plain English in. Clear steps, a preview when it matters, and a result.

◯ find the 10 largest PDFs in Downloads→ listed, biggest first
◯ what's using port 8080→ node · pid 41822
◯ find this week’s CSVs and convert them to JSON→ 2 steps · asks once
◯ zip the PDFs from last month→ shows what goes in, then zips
◯ move old logs to the Trash→ 14 files, 212 MB · asks first
◯ restart redis→ asks first
◯ book me a flight to Lisbon→ not something Halo does: it says so

Built to be trusted with your computer

  • Every step shown before it runs
  • Asks before anything changes
  • Your machine makes the call
  • Runs locally, sandboxed
  • Asks instead of guessing
  • One small binary, macOS and Linux

What leaves your machine

Sent

  • Your request, when you press Enter
  • OS, shell, folder path, user, time zone
  • Result counts, never contents

Stays local

  • Files, listings, command output
  • Environment, keys, credentials
  • The decision to run anything

Sharing requests to improve Preview is your choice, asked once. Details

Free during Halo Preview

Reasonable usage limits apply.

Writing code instead? Memcode Code

MemcodePublic Beta