NoSleep is a lightweight tool that prevents Windows from automatically activating the screen saver, sleep mode, or lock screen. It's designed for situations where you can't change these settings yourself—for example, due to corporate-enforced policies. Inspired by Linux Caffeine.
Windows PowerToys includes a tool called Awake that does the same thing, but PowerToys may require administrator privileges and is quite large. NoSleep aims to be as minimal as possible and runs without any extra permissions.
Publisher’s description
What is NoSleep?
NoSleep by CHerSun is open-source Windows software in the languages & sdks category. It is written in C#.
Installation and requirements
The publisher provides Portable installers for 32-bit Windows. It runs without installation (portable).
Updates and version history
The current version is 1.4.1, released on March 5, 2026. The version history goes back to October 10, 2025: 2 releases, all linked to the official files.
Popularity and file types
The source code on GitHub (CHerSun/NoSleep) has 273 stars. Similar programs include Go Programming Language, LLVM and Deno.
Project description on GitHub: “Lightweight Windows utility to prevent screen locking”
Pros / Cons
Pros
- Open source: the code can be inspected and built by anyone
- Portable: runs without installation
Cons
- No native ARM64 build
- 32-bit only
In short: NoSleep is an open-source languages & sdk tool for 32-bit PCs.
Is NoSleep safe to download?
- The file is served by github.com, the publisher’s own domain
- The download link uses HTTPS
- A SHA256 hash is published, so you can verify the file:
60438CFA31F27C111FF745D41785D1C6B18B119E1C1CC45901AA36F90CE01025· Open the VirusTotal report for this hash - The link has not been checked yet
- The source code is public
- ExeAtlas does not host, wrap or modify installers
Related guide: How to check a file’s SHA256 hash on Windows
Recent versions
All 2 versions ›| Version | Date | Size | Files |
|---|---|---|---|
| 1.4.1Latest | March 5, 2026 | — | 32-bit Portable |
| 1.3.0 | October 10, 2025 | — | 32-bit Portable |
Install from the command line
Silent install ›winget install --id CHerSun.NoSleep -escoop install extras/nosleepRelated guide: How to use winget: install and update apps
Information
- Publisher
- CHerSun
- Category
- Languages & SDKs
- Licence
- Unlicense
- Price
- Free
- Source code
- github.com/CHerSun/NoSleep
- Written in
- C#
- Requires
- Windows 11 / 10
- Architecture
- 32-bit
- Installer
- Portable
- Version
- 1.4.1
- Released
- March 5, 2026
- Added to the catalogue
- October 10, 2025
- Versions listed
- 2
- GitHub stars
- 273
- GitHub forks
- 31
- Website
- github.com
- winget ID
- CHerSun.NoSleep
- Scoop package
- extras/nosleep
Ratings and reviews
No reviews yet. Be the first to rate it.
Alternatives to NoSleep
See all ›-
Go Programming Language1.27.0An open source programming language that makes it simple to build secure, scalable systems.Open source2.1M ↓ -
Open source2.8M ↓ -
Open source249.7K ↓ -
Open source3.7M ↓ -
Yarn1.22.22Yarn is a package manager that doubles down as project manager. Whether you work on one-shot projects or large monorepos, as a hobbyist or an enterprise user, we've got you covered.Open source1.9M ↓ -
Ccache4.14.1Ccache is a compiler cache. It speeds up recompilation by caching previous compilations and detecting when the same compilation is being done again.Open source2.2M ↓ -
Open source773.9K ↓ -
Open source263.6K ↓
Frequently asked questions
Is NoSleep free?
Yes. NoSleep is open-source software under the Unlicense licence.
Is NoSleep safe to download?
The download comes from github.com, which belongs to the publisher; ExeAtlas does not host or change the file. Compare its SHA256 hash with the one shown here, or open the VirusTotal report for that hash.
How do I install NoSleep with winget?
Open PowerShell or Windows Terminal and run the winget command shown on this page. winget downloads the official installer and checks its SHA256 hash before running it.
Does NoSleep run on ARM (Windows on Arm)?
There is no ARM64 build; Windows 11 on Arm can run the 32-bit version through emulation.
Where can I download an older version of NoSleep?
The versions page lists all 2 versions with links to their official installer files, back to October 10, 2025.
Can I use NoSleep without administrator rights?
Yes, it is portable: unpack and run it.
What are alternatives to NoSleep?
Go Programming Language, LLVM, Deno, CMake and Yarn. The alternatives page compares them.
