# slack.exe

Application Process: Slack Technologies, LLC

Also called slack

Slack Technologies, LLC, Application

Slack's Windows desktop client. Extra slack.exe rows are Electron helpers, not extra workspaces you installed by hand.

## What you need to know

This is the Slack desktop client. Teams is a different process and a different vendor.

slack.exe is Electron Slack. Several copies are GPU and renderer processes. It is not ms-teams.exe and it is not Outlook.

- **Safe?**: Yes, from the Slack app

  **Heavy on RAM?**: Workspaces and Electron, yes

  **Same as Teams?**: No. Different vendor and exe

Feex says

If Slack is the memory number I notice on Monday morning, I would close extra workspaces before I buy RAM. The process list is doing Electron things.

## What is slack.exe?

slack.exe is the Slack desktop application. It is Chromium-based Electron. The website in a browser is a different process name entirely.

## What does it do?

It keeps websocket connections to workspaces, shows notifications, and can stay in the tray after the window closes.

## Why is it running?

You signed into Slack or Windows restored the window. A slack.exe from a "desktop gadget" site is not the Salesforce-owned client.

## Why are there multiple copies?

Electron GPU and renderer processes share the image name. Slack Process Manager inside the app is the useful split.

## Is it safe?

Usually safe

A signed Slack build under Local\slack is expected. slack.exe in a zip next to a crack is not.

A legitimate copy normally runs from:

`C:\Users\<you>\AppData\Local\slack\slack.exe`

- Per-user Electron install
- Publisher: Slack Technologies
- Not Teams

## Can I end it?

Drops notifications until you reopen

Ending slack.exe signs that client out of the tray. You will miss mentions until it starts again. It does not delete the workspace.

## Can I remove it?

Uninstall Slack

Use Settings > Apps. Deleting slack.exe leaves the updater and cached workspaces.

## Should it start with Windows?

Slack can launch hidden in the tray. That is a Slack preference, not a Windows service.

## Normal resource behavior

These are contextual labels, not universal averages.

- **CPU**: Huddles, huddle video, and huge channels

  **Memory**: Grows with workspace count

  **Disk**: Cache under AppData

  **Network**: Always-on for messages

## File information

| Executable name        | slack.exe                                      |
| ---------------------- | ---------------------------------------------- |
| Common legitimate path | C:\Users\\\<you>\AppData\Local\slack\slack.exe |
| Publisher              | Slack Technologies, LLC                        |
| Signature expectation  | Signed by Slack Technologies, LLC              |

## Common problems

### RAM after many workspaces

Slack documents cache reset. That is an app fix, not a Windows Search rebuild.

### People end all Electron apps at once

Code.exe and slack.exe are different products that happen to share a framework.

## Troubleshooting

Diagnose before you change anything destructive.

### Reset the Slack cache from Slack Help

Do not delete AppData blindly while the app is open.

### Check Launch Slack on login in preferences

That checkbox is the startup story.

## Technical details

Technical details

| Image name | slack.exe |
| ---------- | --------- |
| Framework  | Electron  |

## Related

These entities connect to this article. Type is shown on every link.

[Slack: Application](https://feex.it/wiki/software/slack)[ms-teams.exe: Application Process](https://feex.it/wiki/process/ms-teams.exe)[When high CPU is normal: Guide](https://feex.it/wiki/software/system/when-high-cpu-is-normal)

## Sources and verification

Reviewed by Feex editorial. Last verified August 2026 Status: Feex Reviewed. [How we research](https://feex.it/wiki/research).

- [Slack Help: desktop app ](https://slack.com/help/articles/115002037526-Download-the-Slack-desktop-app)· Official client
- [Slack Help: app performance ](https://slack.com/help/articles/205138367)· Hardware and cache
- [Foxhole process map ](https://foxhole.feex.it/)· First-party samples on Windows PCs. Not a lab benchmark.

## Was this article useful?

A yes or no is enough. Pick a reason if you want, or add a short note.

Quick facts

The short identity of this page. Specs, sources, and the full story stay in the article.

- **Type**: Application Process

  **Publisher**: Slack Technologies, LLC

  **Executable**: slack.exe

  **Parent app**: [Slack](https://feex.it/wiki/software/slack)

  **Mapped by Feex**: Seen on Windows PCs in Foxhole

Feex Reviewed: Last verified August 2026

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Source: [Canonical Feex Wiki page](https://feex.it/wiki/process/slack.exe/)

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