- [Image resize and quality comparison](https://tools.simonwillison.net/image-resize-quality) 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](https://simonwillison.net/2024/Jul/26/image-resize-and-quality-comparison/))

- [YouTube Thumbnails](https://tools.simonwillison.net/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

- [Gemini API Image Bounding Box Visualizer](https://tools.simonwillison.net/gemini-bbox) - run prompts against Google Gemini models that return bounding box co-ordinates and visualize them against the original image, see [this post](https://simonwillison.net/2024/Aug/26/gemini-bounding-box-visualization/) for details

- [SVG to Image Converter](https://tools.simonwillison.net/svg-render) - turn an SVG file into a rendered JPEG or PNG

- [SVG to JPEG/PNG](https://tools.simonwillison.net/svg-render) - turn an SVG file into a rendered JPEG or PNG

On [Observable](https://observablehq.com/):

<meta charset="UTF-8">

<meta name="viewport" content="width=device-width, initial-scale=1.0">

<title>SVG to Image Convertertitle>

<title>SVG to JPEG/PNGtitle>

<style>

body {

font-family: Arial, sans-serif;

style>

<h1>SVG to Image Converterh1>

<h1>SVG to JPEG/PNGh1>

<input type="file" id="fileInput" accept=".svg">

<a href="https://gist.githubusercontent.com/simonw/aedecb93564af13ac1596810d40cac3c/raw/83e7f3be5b65bba61124684700fa7925d37c36c3/tiger.svg" id="loadExampleLink">Load example imagea>

<div id="dropZone">