snarkOS is open source node software for people who want to run a node on the Aleo network, a blockchain built around zero-knowledge applications. It suits developers and technically minded operators who want to see how privacy-focused verification works from the inside.
The software is the component that verifies transactions and keeps the encrypted application state on each node. Because the documented setup for Windows runs through the Windows Subsystem for Linux, most Windows users install it inside an Ubuntu environment. The source code was last updated on May 26, 2026, and the latest tagged release is canary-v4.7.0.
What Is a Blockchain Node and Why Run One?
A blockchain node is a computer that keeps its own copy of the network's rules and checks incoming activity against them. Nodes share what they verify, which helps the network stay consistent without a central server.
Running your own node means you do not rely solely on a third party's view of the chain. The trade-off is that a node uses CPU, memory, disk and bandwidth for as long as it runs, so it is a long-term commitment.
How Zero-Knowledge Proofs Keep Data Private
A zero-knowledge proof lets one party show that a statement is true without revealing the underlying data. On a network like Aleo, applications can confirm that rules were followed while the details of their inputs stay hidden.
For a node operator, verification and privacy work together. The node checks the proof rather than the private contents, and the encrypted state remains protected from other participants.
Practical Scenarios for Running an Aleo Node
A developer building a private application may run a node to observe how state changes behave on a live network. A student might run one to see how transaction verification works in practice.
A hobbyist who wants to support the network can keep a node online during quiet hours. Start on a test machine that meets the requirements, and review the logs before committing hardware to continuous operation.
Key features
Aleo Network Backbone
Encrypted Application State
Open Source Rust Codebase
Multi-Platform Builds
Supported coins
The software is built for the Aleo network and is not presented as a multi-chain client. Ledger is listed among compatible hardware wallets. A hardware wallet keeps keys on its own device, which is separate from running a node.
How to install snarkOS (Aleo) on Windows
- 1
Install the Windows Subsystem for Linux
Install WSL with an Ubuntu 22.04 distribution. The node requirements name Ubuntu 22.04 LTS, so choosing that release keeps your environment close to the documented target. Restart Windows if the installer asks.
- 2
Get the Release from the Official Source
Download only from the official website or the GitHub Releases page of the AleoNet/snarkOS repository. Pick the release tag you need, such as canary-v4.7.0, and the build that matches your environment.
- 3
Verify the File
Compare the SHA-256 checksum of the downloaded file with the value published alongside the release. If the checksum does not match, delete the file and download it again from the official source.
-
Install and Run Inside WSL
Install the build inside your Ubuntu environment and follow the instructions in the release notes or repository README. Keep the node running inside WSL rather than trying to run it directly on the Windows host.
System requirements
- 64-bit CPU architecture only; the project recommends the latest Intel Xeon or better
- RAM: DDR4 or better
- 64-bit operating system, kept fully up to date for security
- Ubuntu 22.04 LTS, macOS Ventura or later, or Windows 11 or later
How to use snarkOS (Aleo)
Once the node software is installed and verified, your first session is mostly about observing. Work through these steps in your Ubuntu environment inside WSL:
- Confirm that the installed version matches the release you verified.
- Read the configuration options documented for the release and change only the ones you understand.
- Start the node and allow the initial synchronization to finish.
- Watch the log output for connection and verification messages.
- Make sure the machine stays powered and connected, since interruptions reduce participation.
- Stop the node cleanly before shutting down WSL or Windows.
- Check the releases page periodically, and update only after verifying the new checksum.
Pros & cons
- Free and open source, with code publicly available on GitHub
- Core software for the Aleo network
- Runs on Windows, macOS and Linux
- Source code recently updated, with the last update dated May 26, 2026
- Windows setup goes through WSL rather than a native installer
- Running a node requires sustained hardware and network resources
- Canary builds may change between versions
- Narrower use case than general-purpose node clients
Is snarkOS (Aleo) safe?
Download snarkOS only from the official GitHub repository at github.com/AleoNet/snarkOS or from the releases page linked there. Before running any file, compare its SHA-256 checksum with the value published with the release, or verify a signature if one is provided. A mismatch means the file should be discarded.
Keep Windows, WSL and Ubuntu updated, and avoid node software shared through chats or unofficial mirrors. Never enter a seed phrase on third-party websites, and treat any account or node key as sensitive. The last code update was recorded on May 26, 2026, so check the latest version on the official website before installing.
- Official source only. Download from github.com/AleoNet/snarkOS. Ignore ads and lookalike domains.
- Check the SHA-256. Compare the installer hash with the value the developer publishes before running it.
- Never share your seed phrase. No developer, support agent or website — including CryptApps — will ever ask for it.
Alternatives
Most programs in this category are node clients for other networks. Geth and Nethermind run Ethereum execution, Bitcoin Core runs the Bitcoin network, Agave validates Solana, and Aptos and TON each provide node tooling for their own chains. OpenEthereum is a former Parity client that is no longer active.
snarkOS stands apart because it is built for the Aleo network and its zero-knowledge applications. If your goal is to run infrastructure for a privacy-focused network, it is the most direct option in this list. Elements targets sidechains and represents a different kind of project.
Specifications
- Price
- Free
- Type
- Open source
- License
- —
- Latest version
- canary-v4.7.0
- Last update
- 26 May 2026
- Windows support
- Likely (builds for Windows; check releases)
- Source code
- github.com/AleoNet/snarkOS
Frequently asked questions
The documented Windows setup begins by installing the Windows Subsystem for Linux, so most Windows users run snarkOS inside an Ubuntu environment. Windows builds are published on the releases page, so check there for the version you want.
It is safe when you get it from the official GitHub repository or releases page and verify the SHA-256 checksum before running it. Never enter a seed phrase on third-party websites while setting up or using the node.
snarkOS is the node software behind the Aleo network. It helps verify transactions and stores encrypted application state in a publicly verifiable way, which makes it useful for operators and developers working with zero-knowledge applications.
Ledger is listed as a supported hardware wallet. A hardware wallet holds keys on its own device, while snarkOS runs the node. The two are separate, so connecting one does not change how the other works.
Yes, the node requirements call for a 64-bit CPU, a recent Intel Xeon or better, and DDR4 or better memory. A machine that meets these specifications will handle node operation more reliably than an older or underpowered system.
Yes, the program is free and its source code is public on GitHub. Free software does not mean free operation, though. You still pay for hardware, electricity and internet bandwidth to keep a node running.
Verdict
snarkOS suits developers and technically confident operators who want to run the node software behind the Aleo network. It is free, open source and recently updated. It is less relevant for users who only want to hold tokens, since they do not need to run a node. Before committing hardware, review the requirements, test on a spare machine and keep the software current.