• OCR for PDF files and images that runs entirely in your browser
• Haiku generates Haikus from your camera using Claude 3 Haiku
• Render Markdown renders Markdown to HTML using the GitHub Markdown API
• Annotated presentation creator to help turn slides into an annotated presentation
• Arena animated animates the progression of the LMSYS Chatbot Arena, inspired by this visualization by Peter Gostev (via Time-Winter-4319 on Reddit)
• Compare PDFs provides a visual comparison of the pages of two PDF files
• Chrome Prompt Playground is a UI for running prompts through the Google Chrome Canary experimental Gemini Nano LLM and saving the results in local storage
• Box shadow CSS generator generates the CSS for a box shadow with interactive settings
• Image resize and quality comparison converts an image to JPEGs using a number of different quality settings so you can select the smallest file size that is still usefully legible (about)
• YouTube Thumbnails - paste in the URL to a YouTube video, get back all of the URLs to thumbnail images of different sizes for that video

On Observable:

• Blog to newsletter helps me turn my blog into a newsletter
• Weeknotes helps me write my weeknotes
• Convert Claude JSON to Markdown for sharing Claude conversation transcripts
• Hacker News homepage with links to comments ordered by most recent first