The One File is a “single HTML file” editor for network topology and node connection diagrams. It can be used for networks, smart homes, Homelab setups, infrastructure, mind maps, and similar scenarios. Its key traits are no installation, no dependencies, an offline-first design, and the ability to save data back into the HTML file itself. The page also distinguishes between three versions: Core, Networkening, and Verse, aimed respectively at local diagramming, enhanced monitoring, and team collaboration.
Its editing features include large-canvas zooming and panning, nodes and shapes, server rack U positions, smart routed connections, layers, locked groups, bulk operations, keyboard shortcuts, and mobile optimization. On the security side, it offers optional AES 256 GCM encryption, using 200,000 PBKDF2 iterations and the browser Web Crypto API, while emphasizing no server communication and a non-recoverable design. The Networkening edition adds MDI, Simple Icons, selfh.st, and other icon sets with 10,000+ icons, as well as live ping, automatic status checks, and node health indicators. The Verse edition provides real-time multi-user collaboration through Docker, a shared topology server, an admin panel, persistent storage, QR code sharing, and automatic network discovery scans.
The main text does not disclose pricing, licensing, open-source status, or payment methods. For deployment, Core and Networkening can be used by directly downloading a single HTML file. Verse supports Docker and docker compose, and the page provides a quick-start docker run example using port 10101, making it suitable for self-hosting.
The strengths are its extremely lightweight deployment, offline usability, and self-contained data model, making it well suited to local management of sensitive topology information. Its topology editing features are also fairly complete, with support for both desktop and mobile use. The drawbacks are the lack of commercial details, no clear explanation of API/SDK support, permission model, or the limits of monitoring and automatic discovery, and the documentation—judging from the main text—still appears relatively introductory.
It is suitable for network administrators, Homelab enthusiasts, infrastructure documentation maintainers, and teams that need to self-host collaborative topology diagrams with Docker. Access from China cannot be determined from the main text. The image is hosted on GHCR, so actual pull speeds may be affected by network conditions; payment methods are unknown. Alternatives to compare include draw.io/diagrams.net, yEd, Lucidchart, NetBox, or network monitoring/topology tools.
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