Bytewell
  • Features
  • Pricing
  • Menu
    • Features
    • Pricing
  • EN
    • English
    • Deutsch
    • Español
    • 日本語
    • Türkçe
    • 简体中文
    • 繁體中文
  • Download
Bytewell›Guides

What opens at login on my Mac, and how do I turn it off?

Updated November 3, 2026

Some apps open the moment you log in, and others start helpers you never see: updaters, sync agents, menu bar tools. macOS lists them in one place, but the background list often shows only a company name.

The short answer: open System Settings › General › Login Items & Extensions. Open at Login lists apps that open when you log in: select one and click the minus button. App Background Activity (called Allow in the Background in macOS 15) lists helpers that run without a window: switch one off to stop it. The files behind those helpers are in the LaunchAgents and LaunchDaemons folders.

On this page

  1. Where do I see what opens at login?
  2. How do I stop an app from opening at login?
  3. What are the items in App Background Activity?
  4. An item only shows a company name. What does it run?
  5. Can I delete the .plist files?

Where do I see what opens at login?

Choose Apple menu › System Settings, click General in the sidebar, then Login Items & Extensions. You may need to scroll down. The page has two lists:

  • Open at Login: apps, documents and server connections that open when you log in, with their kind. A yellow warning sign means the item was moved or deleted.
  • App Background Activity: programs that run after you close their app, to check for updates or sync data. They're grouped by app or developer.

How do I stop an app from opening at login?

  1. In Open at Login, select the app and click the minus button.
  2. If it comes back, the app adds itself: look in its own settings for an option such as "Open at login" or "Launch at startup" and turn it off.
  3. For an app in the Dock, Control-click its icon and choose Options; a tick next to Open at Login means it starts with the Mac.

What are the items in App Background Activity?

Mostly updaters (Google, Microsoft, Adobe), sync and backup tools, VPN and security software, and helpers for apps such as Docker or Karabiner. Switching one off stops it from starting; switch it on again any time. An app may stop updating itself or stop a feature while its helper is off.

An item only shows a company name. What does it run?

Each helper is a small .plist file that names the program it starts. List them:

ls ~/Library/LaunchAgents /Library/LaunchAgents /Library/LaunchDaemons

~/Library/LaunchAgents runs for you only, /Library/LaunchAgents for every user, and /Library/LaunchDaemons for the whole Mac, even before anyone logs in. To see what one runs, read its ProgramArguments:

plutil -p /Library/LaunchAgents/com.example.agent.plist

macOS also keeps its own list, with the developer's name and the program's path for each item:

sfltool dumpbtm

If it says it needs administrator rights, run it as sudo sfltool dumpbtm.

Can I delete the .plist files?

Only for apps you've already removed. If the program a .plist points to no longer exists, the file is a leftover and can go to the Trash; it stops loading after you log out or restart. For apps you still use, switch the item off in System Settings instead, or remove the app with its maker's uninstaller: deleting the file of an installed app often brings it back, or breaks the app.

Bytewell lists every program that starts without a window, says in one sentence what it does, who signed it and whether the app it came with is still there. Leftovers in your own LaunchAgents folder go to the Trash, where Undo puts them back; for the rest it says where to turn them off. The Overview counts them for free; the full list is in Apps, a Pro feature.

Download

Guides

  • Claude Code, Codex and Cursor disk usage: what's safe to cleanWhere Claude Code, Codex, Gemini CLI, Cursor and VS Code keep transcripts, worktrees, runtimes and editor state on a Mac, and which of it you can safely remove.
  • I deleted an app on my Mac. Why are its files still there?Dragging an app to the Trash leaves its settings, caches and data in your Library. Where those leftovers are, how to find them, and which are safe to remove.
  • Docker using too much disk space on a Mac: Docker.raw explainedDocker Desktop keeps everything in one file, Docker.raw. Why it looks huge, how to see what uses it, and which docker prune commands free space safely on Mac.
  • Can I delete iPhone software update files on my Mac?Finder downloads several GB of iPhone and iPad system software to update a device, and keeps it. Where the .ipsw files are and why removing them is safe.
  • Is it safe to delete cache files on my Mac?Most app caches in ~/Library/Caches are safe to remove with the app quit: the app rebuilds them. Where caches are, how big they are, and what not to delete.
  • Where Ollama, LM Studio and Hugging Face store models on a MacWhere Ollama, LM Studio and Hugging Face keep local AI models on a Mac, how big they get, how to find the same model stored twice, and how to remove them.
  • My Mac says the disk is full, but Finder shows free spaceYour Mac has two numbers for free space: what's free now, and what's available once macOS removes purgeable data. Why they differ and how to close the gap.
  • How to check your Mac's SSD health and wearmacOS only says S.M.A.R.T. Verified. How to read your Mac SSD's real wear (Percentage Used, data written, errors), what the numbers mean, and what wears it out.
  • Why is my Mac storage filling up by itself?Mac storage shrinking on its own? Usually snapshots, caches, swap, chat media, backups or developer tools. How to find what grows with two du runs a week apart.
  • What is System Data on a Mac, and how do I make it smaller?System Data in Mac storage settings is caches, logs, Time Machine snapshots, swap, iPhone backups, app data and VM disks. What each is and what you can remove.
  • Messages and Mail are taking up storage on my MacMessages and Mail keep attachments on your Mac. Where they are, and how to reduce them with Storage settings, Keep messages and Mail's own settings.
  • How to find and delete old node_modules folders and package caches on a MacFind every node_modules folder on a Mac with one command, see which package caches (npm, pnpm, Yarn, Homebrew, pip, Go, Gradle) are safe to clear, and how.
  • Videos or GIFs on X are black in SafariVideos and GIFs on X (Twitter) black in Safari while the timer runs, fine in Chrome? Safari's video helper is stuck. Quit Safari with Cmd+Q and reopen it.
  • Telegram is taking up storage on my MacTelegram for Mac keeps a copy of every photo and video you open. Where its cache is, how to clear it in Settings › Data and Storage, and what secret chats lose.
  • What did this installer put on my Mac?A .pkg installer leaves a receipt on your Mac. List what it installed with pkgutil, find helpers it added, and what to do for apps installed from a disk image.
  • WhatsApp is taking up storage on my MacWhatsApp for Mac keeps every photo, video and voice note from your chats in its Group Container. Where it is, how big it is, and how to reduce it in WhatsApp.
  • Xcode taking up too much space: what's safe to deleteWhere Xcode keeps DerivedData, simulators, runtimes, device support and archives on a Mac, which of them rebuild themselves, and how to remove them safely.
Refunds Privacy Terms Contact

Bytewell is made by Axleno.

© 2026 Axleno LLC. All rights reserved.