Image Resize and Quality Compare
Generates several resized and recompressed versions of one image so you can pick the smallest file that still looks fine.
Artifact by Simon Willison
IndexedApache-2.0Design & imagesNo sign-upRuns in your browser
Use it
Opens tools.simonwillison.net in a new tab. Nothing to install.
- You provide
- An image and a crop area
- You get
- Preview variants with file sizes
- Account
- No sign-up needed
- AI
- No AI: a plain tool
- Your input
- Processed in your browser, not uploaded (stated by the tool or its repo)
- Price
- Free to use
- Made with
- AI-built app
- Source
- Open source
- Link check
- Answered on Nov 1, 2026
About
Image Resize and Quality Compare is an AI-built single-page app in the design media category (image compression). It opens in your browser, so there is nothing to install. You provide an image and a crop area and get preview variants with file sizes. Your input is processed on your device and not uploaded. It needs no account. It is a plain tool: no AI model is involved. The source code is public on GitHub (simonw/tools).
Category: Design & images · image compression
Reviews
Write a reviewNo reviews yet. Used it? Sign in with an established GitHub account to rate it. How reviews work
More design & images tools
Details
- Auth
- No auth
- License
- Apache-2.0
- Repository
- github.com/simonw/tools
- First seen
- Oct 31, 2026
- Last checked
- Nov 1, 2026
- Source
- GitHub
More from Simon Willison
Cite this page
Image Resize and Quality Compare: free online tool. Agent Mart. https://agentmart.dev/artifacts/image-resize-and-quality-compare (last updated 2026-11-01)