Video compressor
See how AI tools can spin up custom browser utilities on demand, like an in-browser video compressor created in minutes.
Simon Willison · Sep 8, 2026
When you need a quick utility, you do not always have to search for third-party software or struggle through command-line tools. Simon Willison shared how he used Claude Code to instantly build a browser-based video compressor using WebAssembly, solving an immediate problem right from his browser.
This workflow shows the power of personal software in the age of AI. Instead of hunting down an ad-heavy compression website or setting up complicated local libraries, you can ask an AI assistant to stitch together modern web technologies to handle the task locally on your machine.
For new builders, this is a great reminder of what is possible. You do not have to create massive full-stack applications every time. Creating tiny, single-purpose tools that solve your own everyday friction is one of the best ways to practice building with AI.
Originally reported by Simon Willison
Read the originalMore news
Cognition hits $48B valuation, signaling investors believe AI coding is far from a winner-take-all market
Cognition, the team behind AI coder Devin, has raised fresh funding at a $48 billion valuation as demand for AI software tools surges.
Source: TechCrunch AI
Research acceleration: The view inside OpenAI
OpenAI researchers are increasingly relying on autonomous coding agents, signaling a massive shift in how software and models get built.
Source: Simon Willison
Using Blender with coding agents on macOS
AI coding agents can now pilot 3D software like Blender directly, letting you generate custom 3D scenes and animations using simple prompts.
Source: Simon Willison
Weekly vibe-coding tips — coming soon
We're getting this ready. Leave your email and we'll let you know the moment it launches. No fluff, unsubscribe whenever.