bcat
Pipe command output to web browsers for easy sharing and viewing.
- Status
- Generally available
- Last checked
- Checked · Oct 13, 2026
- License
- Open source
- Pricing
- Free tier · from $0
What it is
bcat is a Node.js tool that allows you to pipe the output of any command directly into a web browser, making it easier to share and view terminal outputs in real-time. It's particularly useful for developers who need to quickly demonstrate or debug command-line applications over the internet.
bcat stands out as a lightweight, easy-to-use tool that simplifies the process of sharing terminal outputs in real-time over the internet, making it ideal for remote collaboration and demonstration purposes.
When it fits — and when it doesn’t
A good fit for
Developers who frequently demonstrate or debug command-line tools remotely and need a simple way to share terminal output in real-time.
Teams working on collaborative projects that require sharing of terminal outputs for debugging purposes.
Look elsewhere if
Projects requiring complex web-based interfaces beyond simple text output.
Use cases where the output needs to be processed or formatted before being shared.
Known weaknesses
Each one links to the public issue, changelog or docs page it came from, where we have one.
- 01
Limited language support
bcat is primarily built for Node.js and may not integrate seamlessly with other languages or environments.
- 02
Performance issues with large outputs
Real-time streaming of large command outputs can lead to performance bottlenecks, especially over slower network connections.
- 03
Security concerns with real-time sharing
Sharing terminal output in real-time may expose sensitive information if not properly secured or filtered before transmission.
- 04
Small community and limited support
As an open-source tool, bcat relies on a smaller developer community which can result in slower issue resolution and feature development.
What it does well
Pipes command output directly to a web browser.
Easy sharing and viewing of terminal outputs in real-time.
Lightweight and easy to integrate into existing workflows.
Pricing
- Free tier
- YesOpen source — free to use
- Paid from
- $0
- Model
- Flat rate
- Enterprise plan
- No
Pricing not independently confirmed — check the vendor’s page.
Performance benchmarks
How Fast Is It?
Set up bcat
Setup steps, common gotchas and what to check after 30 days.
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