UI Core is a free, open-source network wallet application for Windows, built for users who want to see how a desktop crypto wallet is put together and who are comfortable with developer-oriented software. The project is written in JavaScript and TypeScript and uses Electron, so its interface runs as a standard desktop program. It suits learners, developers and curious users more than people looking for an everyday wallet.
Before you install anything, note the project's status. There have been no code updates since July 2021, which means the software is no longer actively maintained. For a program that handles keys and digital assets, that is a serious point. Read this page as a guide to the project and the wallet category, not as a recommendation to store funds in it.
What Is UI Core and How Does It Fit In?
UI Core belongs to the crypto wallet category, a group of tools that let you control keys to digital assets and interact with blockchain networks. A wallet does not store coins the way a bank stores money. What it holds are the cryptographic keys that prove ownership, and the software uses them to sign transactions.
UI Core presents this function as a network wallet application. The name points to the project's focus: the interface is meant to be a front end for network interaction. Because the code is public, the project is also useful as a readable example for people who want to see those mechanics laid out.
Keep the difference between a reference project and a finished product in mind. A reference project shows how something works. A finished product is maintained, tested against new versions of networks and operating systems, and supported when problems appear.
Who Should Consider UI Core?
UI Core makes most sense for three kinds of readers. The first is a developer who wants to study a desktop wallet built with JavaScript, TypeScript and Electron. Reading the code and running it locally can teach more than a feature list ever will.
The second is a student or hobbyist who wants to understand what happens when a wallet signs a transaction. Working through a small, open project is a practical way to see the moving parts without trusting the software with large balances.
The third is a person evaluating wallet software for a team or course. A reviewer can use the public code as a starting point for discussion. The same person should weigh the lack of updates since 2021 before recommending the program to anyone else.
If you need a wallet to hold assets day to day, this page is not the right starting point. The comparison section points to other wallets in this catalog that suit that purpose better.
Real-World Scenarios for a Desktop Wallet Project
Consider a small development team that wants to prototype a wallet screen. They can download the public code, read the Electron setup, and test how the interface handles accounts and network selection. Nothing in that work needs real funds, which makes it a sensible setting for learning.
A second scenario is a security reviewer comparing several wallet designs. By reading the source, the reviewer can see where keys are generated and how transactions are assembled. The findings become a checklist for evaluating other wallets, including commercial ones.
A third scenario is a teacher preparing a lesson on blockchain basics. A live demonstration with an empty setup and no significant funds shows students how addresses, balances and signatures relate to one another. Each of these uses the project for study, not for holding savings.
Understanding Keys, Seed Phrases and Signing
Every crypto wallet revolves around keys. A private key is a secret value that proves control of an address, and whoever holds it can authorize transfers from that address. Wallets usually derive keys from a seed phrase, a list of words that can regenerate the full set of keys. Anyone who learns the seed phrase can rebuild the wallet on another device, so it must stay private.
Signing is the step where the wallet uses a private key to approve a transaction. The network checks the signature against the public address. A wallet that is buggy or abandoned can therefore still put funds at risk, because the danger lies in how keys are created, stored and used, not only in whether the network works.
When you evaluate any wallet, including UI Core, ask where keys are generated, whether they ever leave your computer, and how the software is updated when a flaw is found. These questions matter more than a long list of features.
Key features
Network Wallet Design
Open Source Code
Free Desktop Build
How to install UI Core on Windows
- 1
Download the Windows build or installer
Download only from the official website or the project's GitHub Releases page. Avoid copies shared on forums, messaging apps or mirror sites, even when they look identical to the original.
- 2
Verify the SHA-256 checksum
Compute the SHA-256 hash of the downloaded file, for example with the Get-FileHash command in PowerShell, and compare it with the checksum published alongside the release. If the values differ, delete the file and do not run it. A mismatch means the file is not the one the project published.
- 3
Run the installer
Open the file, read each prompt, and choose an install folder you control. Run it with administrator rights only if the installer clearly requires them. If Windows shows a security prompt, confirm the hash again before continuing.
-
Launch and confirm the version
Start the application and check that its version matches the release you downloaded. Because no updates have been published since 2021, keep the program separate from any wallet or account that holds meaningful funds until you have reviewed it.
How to use UI Core
UI Core is best approached as a learning exercise. The steps below focus on exploring the interface and understanding its behavior without committing significant funds.
- Start with an empty setup and move no real funds into it.
- Open the interface and look at how accounts, balances and network selection are arranged.
- Check which network the wallet is connected to before doing anything else, and write it down.
- Find where addresses are displayed and confirm you can copy one without revealing any private key.
- If you test a transaction flow, use a small amount you can afford to lose, and check each step on a block explorer.
- Close the app and reopen it to see whether settings and accounts persist as you expect.
- Record what you learned, and compare it with a wallet that receives regular updates before deciding how to proceed.
Pros & cons
- Free to download and use, with no cost to run the program
- Open-source code that anyone can read on GitHub
- Available as a Windows build or installer
- Built with JavaScript, TypeScript and Electron, so the code is approachable for web developers
- Useful for studying how a desktop wallet is structured
- No code updates since July 2021, so the project is effectively unmaintained
- Not a good fit for storing significant funds
- Security flaws discovered after 2021 may never be fixed
- Setup suits people who are comfortable with technical tools
Is UI Core safe?
UI Core handles private keys, so safety comes first. The project has had no code updates since July 2021, and that status is a reason for caution on its own. Download only from the official website or the GitHub Releases page, and verify the SHA-256 checksum before running the file. Check the latest version on the official website before installing, because older builds may carry flaws that were never patched. Never type your seed phrase into a third-party website, a chat or an email, even if the page looks like the project. Keep your antivirus active during installation. Security tools sometimes flag wallet software, so resolve the alert rather than turning protection off.
- Official source only. Download from github.com/usetech-llc/ui-core. 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
UI Core differs from the wallets listed below mainly in its purpose and its maintenance status. Coinomi and Atomic Wallet are multi-currency wallets, with Coinomi listing more than 1,700 assets and Atomic Wallet more than 500 coins. Exodus combines a multi-currency desktop wallet with a built-in exchange. Electron Cash focuses on Bitcoin Cash. Frame is a desktop Web3 wallet, and Trust Wallet runs on a PC as a browser extension. UI Core is an open-source network wallet aimed at people who want to study the code. For daily use, the multi-currency options are the more practical place to look.
Specifications
- Price
- Free
- Type
- Open source
- License
- —
- Latest version
- —
- Last update
- 30 Jul 2021
- Windows support
- Yes (Windows build or installer)
- Source code
- github.com/usetech-llc/ui-core
Frequently asked questions
UI Core is not a safe choice for holding significant funds. The project has had no code updates since July 2021, so flaws found afterward are unlikely to be fixed. If you test it, check the file's SHA-256 checksum before running it, and never share your seed phrase with anyone or enter it on a third-party site.
Yes. UI Core is free to download and use, and its source code is publicly available on GitHub. Being free does not make it suitable for every purpose. Its value is mostly educational, and the maintenance gap since 2021 should weigh heavily in your decision.
Yes. UI Core is available for Windows as a ready-made build or installer, so you can run it without setting up the source code yourself. The project is built with Electron, which means it runs as a standard desktop application. The installation steps above cover the checks to run first.
No. The last code update was on July 30, 2021, and the project status reflects that no updates have been made since. That makes it a weak choice for long-term use, because security fixes and compatibility updates for newer systems are unlikely to arrive. If you want an actively maintained option, start with the alternatives in the comparison section.
Start with the official download, then check the SHA-256 checksum against the published value. If the checksum matches, run the installer, choose a folder you control, and confirm the version after launch. If the checksum does not match, do not run the file.
Several wallets in this catalog cover more ground for everyday use. Coinomi and Atomic Wallet are multi-currency options, Exodus includes a built-in exchange, and Frame targets Web3 on the desktop. Compare each project's recent activity, supported assets and security history before choosing one.
Verdict
UI Core is a free, open-source network wallet for Windows, and its main value is educational. Developers, students and reviewers can read its code and learn how a desktop wallet is structured. It is not a good choice for anyone who needs to store significant funds, because the project has had no code updates since July 2021. Use it as a study tool, keep any test activity small and isolated, and choose an actively maintained wallet for daily use.