A collection of open-source utilities that run locally in your browser. No account. No cookies. No tracking.
Create and edit diagrams visually — flowcharts, mind maps, and more. All client-side, no account needed.
Diagramming github.com/bflbarlow/diagramWrite and preview Markdown in real time. Export to HTML with no server — everything runs in your browser.
Writer github.com/bflbarlow/markdownDesign page layouts visually with a drag-and-drop grid system. Export clean HTML/CSS instantly.
Design github.com/bflbarlow/layoutEvery tool runs entirely in your browser. Your data never leaves your machine — nothing is uploaded, stored, or processed remotely.
Open a tool and start using it. No sign-up, no login, no tracking, no data collection. Ever.
Every tool is free to use and its code is open for anyone to inspect, fork, or improve.
Free Open Tools is built by Benjamin Barlow — a developer who believes web tools should be simple, transparent, and free. Every tool here runs entirely in your browser with no server, no account, no tracking. The code for each tool is open source and available on GitHub.
Got a question, idea, or bug report? Reach out at bflbarlow@gmail.com.
If these tools have been useful to you, consider buying me a coffee. Your support helps keep everything free and open source.
Buy Me a CoffeeAI has been and will continue to be used to support the development of these tools. The default and priority approach is to use local models. All AI-generated output is fully curated, reviewed, and tested by Benjamin Barlow, an experienced web developer and data analyst. The principles of this project — simplicity, transparency, and no tracking — will never be compromised.