Bija is a free, open source desktop client for Nostr, a decentralized social protocol, written in Python. It suits developers, students and hobbyists who want to see how a Twitter-style app works on Nostr. The author has ended development, so treat Bija as an archived experiment rather than a daily tool.
Bija for Windows is the phrase many readers search for, but the situation is different from what the name suggests. Bija is currently built for Linux, and the project said Windows and macOS versions were planned for later. Its last code update was on August 27, 2023, and the latest release is v0.0.9-alpha. Read the status, install notes and safety tips below before you download anything.
What Is Nostr and Why Clients Matter
Nostr is an open protocol for publishing short signed messages. Instead of posting to one company's server, a user publishes events that travel through relays, which are servers that anyone can run. Your identity is a cryptographic key pair, so you can move between apps without asking a platform for permission.
That design makes the client the part you actually touch. A client builds your feed, sends your posts and fetches messages from the relays you choose. Many Nostr clients compete on design and features while using the same underlying network. Bija was one of these clients, aimed at the familiar timeline people know from Twitter-style apps. Understanding that split helps you judge any Nostr app, including this one.
Clients Versus Nodes: Why Bija Is Not a Blockchain Tool
The catalog places Bija under nodes and blockchain clients, which can confuse readers. A blockchain node downloads and checks the full transaction history of a network such as Bitcoin or Ethereum. Those programs use disk space, bandwidth and often many hours of sync time, and they help the network by verifying blocks.
Bija does none of that work for coins. It is a social client that reads and writes Nostr events. Its documentation names Nostr as the only network, so the program has no role in sending payments, storing balances or validating blocks. If you searched for it hoping to run a node, look at Bitcoin Core or Geth in this catalog instead. Those projects are built for that job.
Who Might Still Want to Explore Bija
Bija is most interesting for developers who want a readable example of a Nostr client. Its Python codebase is small enough to work through in a reasonable time, and the repository shows concretely how events, keys and a timeline fit together. Students learning decentralized protocols can use it in the same way.
Hobbyists on Linux can also try the early test releases with a throwaway identity. Keep expectations modest. This is an alpha build from a project whose author has stopped work, so bugs and gaps are likely. Use a separate Nostr identity for testing rather than one tied to important accounts. For everyday posting, an actively used Nostr client is a better fit.
Key features
Twitter-style Nostr interface
Desktop application in Python
Public source code on GitHub
Planned multi-platform support
Supported coins
Bija's documentation names Nostr as its only network. It is a client for that protocol, so it does not connect to Bitcoin, Ethereum or other blockchains, and it does not hold coins for you.
How to install Bija on Windows
- 1
Open the official GitHub repository
Go to the project page at github.com/BrightonBTC/bija and open the Releases section. Download only from the official GitHub repository, and avoid mirror sites that offer a Windows installer for the program.
- 2
Verify the download
If a SHA-256 checksum or signature is posted with the release, compare it with your file using PowerShell's Get-FileHash command. Do not run a file whose hash does not match the published value.
- 3
Run the Windows build if one is listed
If a Windows installer or build appears on the release page, run it like any other program. The early releases were posted for Linux, so a Windows file may not exist for the version you want. In that case, there is no ready-made Windows package to install.
-
Install Python for source builds
The project notes say Python 3.10 or newer is required. This applies when you run the code from source, so install a current Python 3.10 or later release before you start the client from the downloaded code.
How to use Bija
Bija works like other Nostr clients: you sign in with a key pair, connect to relays and then read or write short posts. Keep the steps below in mind before you start.
- Launch Bija from the folder where you installed it or from the source directory.
- Create a new Nostr identity or import an existing key pair. Store the private key in a password manager, not in a text file.
- Open the settings area and check which relays the client connects to, since your posts travel through them.
- Follow a few accounts you already know so the timeline has content to display.
- Write a short test post and confirm that it appears in your feed.
- Close the client and keep your keys offline when you are not using them.
Use a separate identity for early testing. If you lose the key, you lose access to that identity.
Pros & cons
- Free to use, with source code that is public on GitHub
- Focused on a familiar Twitter-style posting experience
- Written in Python, which makes it approachable for developers
- Early test releases are available for Linux
- Small codebase that is practical to study
- Development has ended, so no further updates are planned
- Last code update was on August 27, 2023
- Current release v0.0.9-alpha is an early alpha build
- Early releases were Linux only, and Windows builds were planned for later
- Running from source requires Python 3.10 or newer
- Not a wallet or blockchain node, so it cannot manage coins
Is Bija safe?
Bija's development has ended, and its last code update was on August 27, 2023. That means it no longer receives security fixes, so treat it with care. Download only from the official GitHub repository or its Releases page. Check the SHA-256 checksum or signature when one is published, and do not run files that fail the check. Never enter a Nostr private key or seed phrase on third-party websites, in direct messages or in support requests from strangers. Because the code is no longer maintained, use a throwaway identity for testing instead of keys tied to important accounts. Before you install, check the latest version on the official website.
- Official source only. Download from github.com/BrightonBTC/bija. 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
Bija is a Nostr client, and Nostr is the only network named in its documentation. Bitcoin Core, Geth, Nethermind, Agave and TON are different: they run blockchain nodes that store and verify ledger data for specific cryptocurrencies. The native apps and command-line tools in this catalog serve other needs, including scripting. The project itself recommends choosing another Twitter-style Nostr app, since many now exist. Bija's main appeal is its small, readable Python codebase, which makes it a reference point for learning rather than a full replacement for an active client.
Specifications
- Price
- Free
- Type
- Open source
- License
- —
- Latest version
- v0.0.9-alpha
- Last update
- 27 Aug 2023
- Windows support
- Yes (Windows build or installer)
- Source code
- github.com/BrightonBTC/bija
Frequently asked questions
No. The author ended development, and the last code update was on August 27, 2023. The latest release is v0.0.9-alpha. Expect no new features or security fixes, and treat the program as an archived experiment rather than a tool for daily use.
Bija is listed with Windows support, but its early releases were posted for Linux, and Windows and macOS versions were planned for a later date. Check the GitHub Releases page to see whether a Windows build exists for the version you want. If none is listed, there is no ready-made Windows package.
It can be, if you get the file from the official GitHub repository and verify its SHA-256 checksum or signature. Because development has stopped, the program no longer gets security updates. Never enter private keys or seed phrases on third-party websites, and use a throwaway identity for testing.
No. Bija is a social client for Nostr, a protocol for signed posts. It does not run a blockchain node, and it is not a wallet for storing coins. If you need node software, Bitcoin Core and Geth are listed in this catalog and are designed for that purpose.
Nostr is an open protocol for publishing signed messages through relays. Users control their identity with cryptographic keys rather than a single company account. Clients such as Bija display these messages in a feed, and different apps can read the same network.
The project itself recommends choosing another Twitter-style Nostr app, since many now exist. For scripting or automation, the native apps and command-line tools in this catalog are another option. Check each program's release date and activity before you choose one.
Yes. Bija is listed as free and open source, and its code is public on GitHub for anyone to read or compile. Only download the program from the official repository to avoid copies that may have been altered.
No. Its documentation names Nostr as the only network. Bija is a social client, so it does not handle Bitcoin or Ethereum transactions, balances or blocks. For those networks, look at node software such as Bitcoin Core or Geth.
Verdict
Bija for Windows suits developers, students and hobbyists who want to study a small Python Nostr client or test an early Linux build. It is a poor choice for everyday posting, because development has ended and the newest release is an alpha. If you want a Nostr app you can rely on, choose an actively used client from the alternatives in this catalog. Bija remains a useful reference point and a learning project for anyone curious about how Nostr clients are built.