A collection of browser-based HTML+JavaScript tools for various tasks. These tools are prototypes, not products. They have been developed quickly and iteratively using LLMs to test the afforances and limitations of agentic coding. Each tool has been tailored to my own practical needs. At the same time they are also intended to provide genuine utility and value for others.
Some tools require external dependencies which are loaded from trusted CDNs. All tools run entirely in your browser with no server-side processing.
Development of this collection was inspired by Simon Willison's experiments in prompt-driven development. Simon's collection can be found at https://tools.simonwillison.net/, and his code can be found on GitHub in simonw/tools. Simon also generously discusses both the Claude custom instructions and general patterns he uses for developing these tools on his blog.
The majority of tools in my collection virtualarchitectures/Browser-Tools have been developed using Anthropic's Claude running within the Zed agentic IDE. I've also used a combination of Claude, ChatGPT and Google Gemini within Continue.Dev in VS Code for more focused edits and refinement. In each case the LLM has been used to tailor the tool to meet my own practical needs. This practice is in broad alignment with approaches discussed elsewhere under the headings of malleable software and resonant computing. More generally, my personal preference in the use of LLMs is toward local development on my own machine using open models in Ollama.