Tue 25 August 2026

Graphviz Viewer: Just Render the Graphviz, Please

Posted by Al Sweigart in misc   

A minimal, offline Graphviz renderer contained in a single HTML file. It has the dot, neato, fdp, sfdp, twopi, circo, osage, and patchwork tools just the command line version. I generated this because I wanted a simple Graphviz editor without ads. Think of it as a text editor with a Graphviz preview, along with some examples to help remember Graphviz syntax. Paste the Graphviz source, open or drop an .dot file, inspect the result in a sandboxed preview, pan and zoom, tidy the source, and export the image again as SVG, PNG, or WebP. Run the app in your browser. This app works offline and you own it forever. No ads. No registration. No subscriptions. No trackers. Just right-click and save the .html page.
screenshot:


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