Software · Free

Octopus.
Your computer, explained.

See what is using your memory and disk, which processes are really running —your Claude Code sessions included— and what is safe to delete, with the reason for each item.

All downloads

Free · version 0.2.0 · Windows 10/11 · macOS coming soon

Octopus’s Advisor analysing a folder: what can be deleted, what needs its own command and what to leave alone.

What it does

Everything your system doesn’t tell you.

  • Memory by app

    Groups every process under the app it really belongs to —Chrome, VS Code, Claude Code, Docker— and shows how much memory it actually uses.

  • Processes nobody closed

    Finds orphaned and duplicate MCP servers and forgotten dev servers, and closes them in one click.

  • Your disk, in depth

    Scans the disk in seconds, shows the biggest folders and files, and finds node_modules, builds and caches of old projects.

  • The Advisor

    For any folder it tells you what is safe to delete, what needs its own command and what never to touch. Right before deleting, it checks everything again.

  • One-click cleanup

    Browser caches, temp files, logs, Xcode, npm, pip, Homebrew and more. Anything not verified goes to the trash.

  • Security and startup

    Checks code signatures, programs that start on their own and processes hiding in odd folders. Not a replacement for your antivirus: it tells you what to look at.

Windows and Mac

Built for each system.

Cleaning a Mac is not the same as cleaning Windows. Octopus knows the folders, protections and tools of each one.

Windows

  • AppData, Temp, Windows Update and the Recycle Bin
  • Authenticode and Windows catalog signatures
  • Startup entries from the Registry and the Startup folder, like Task Manager
  • One-click Microsoft Defender scans
  • Protects WSL and Docker disks so they are never deleted by mistake
  • Portable version: no install, even from a USB stick

macOS

  • ~/Library: Caches, Logs, Application Support and each app’s container
  • Xcode (DerivedData, simulators, device support) and Homebrew via brew cleanup
  • LaunchAgents and LaunchDaemons: turn them on or off without Terminal
  • Apple code signatures, and what hides in hidden Library folders
  • Protects iCloud Drive, Photos, Mail, Messages, the Keychain and Docker, OrbStack and Parallels disks
  • Measures real APFS disk usage and keeps your API key in the Keychain
  • Universal: Apple Silicon (M1 and later) and Intel

Downloads

Pick your system.

Always the latest version. macOS, Android and iOS are on the way.

  • macOS

    macOS 11 Big Sur or later. Apple Silicon and Intel in one file.

    Coming soon

  • Android

    See what is taking up space on your phone.

    Coming soon

  • iPhone and iPad

    Storage and apps, explained.

    Coming soon

How to install

Windows · Installer

  1. 1Download Octopus-Windows-Setup.exe and open it.
  2. 2If “Windows protected your PC” (SmartScreen) appears, click “More info” and then “Run anyway”. It happens because it doesn’t have a paid signing certificate yet.
  3. 3Follow the wizard and open Octopus from the Start menu.
  4. 4To see other users’ processes or clean Windows Update and the system Temp, use “Open as admin” in the sidebar.

Windows · Portable

  1. 1Download Octopus-Windows-Portable.zip and unzip it anywhere (a USB stick works too).
  2. 2Open Octopus.exe. Nothing gets installed.
  3. 3Your settings are kept in the OctopusData folder next to the program. Don’t delete the octopus.portable file.

Requirements: Windows 10/11 64-bit or macOS 11 or later (Apple Silicon and Intel). To update, download the new version over the old one; your settings are kept.

Inside

Overview: who is using the memory, grouped by app (interface in Spanish)
Overview: who is using the memory, grouped by app (interface in Spanish)
Cleanup: temp files, browser caches and more, with the size of each item
Cleanup: temp files, browser caches and more, with the size of each item

No catch.

  • Free, no account

    No sign-up and no payment.

  • Nothing leaves your computer

    No telemetry. The only thing that leaves is what you ask Claude, with your own API key: names, sizes and dates, never your files’ contents.

  • It never deletes without asking

    You confirm every deletion, and anything not verified by a rule goes to the trash.

Questions

Is it an antivirus?

No. It flags odd processes and programs with heuristics and sends you to Microsoft Defender (on Windows) or VirusTotal for the verdict. Keep using your antivirus.

What if I delete something important?

Octopus protects system folders, your documents, cloud storage and virtual disks. Anything not verified by a rule goes to the trash, so you can get it back.

Do I need Claude?

No. Claude is optional and only analyses folders the rules don’t know, using your own Anthropic API key.

Why does Windows or macOS warn me when I open it?

Because it doesn’t have a paid Microsoft signature or Apple notarization yet. Every version is built automatically on GitHub and the files are published right there.

Need custom software?

We built Octopus with AI in a few weeks. We can do the same for your business.

Let’s talk