# ImageNow > URL-driven placeholder image generator API created by LiquidPixels. ImageNow generates placeholder images from URL path parameters. Developers can specify dimensions, aspect ratio, named size presets, background color, foreground color, output format, device pixel ratio, and optional text directly in the URL. ## Key resources - [Homepage](https://imagenow.dev/) - [OpenAPI Spec](https://imagenow.dev/openapi.json) - [Full AI Docs](https://imagenow.dev/llms-full.txt) - [LiquidPixels](https://www.liquidpixels.com/) ## Core syntax GET /{size}/{background}/{foreground}.{format}?text={text} ## Supported formats webp, png, jpeg, jpg, gif, avif ## Common examples - https://my.imagenow.dev/1200x630/0f172a/f8fafc.png?text=Open+Graph - https://my.imagenow.dev/300x250/111827/f8fafc.webp?text=Medium+Rectangle - https://my.imagenow.dev/728x90/1f2937/e5e7eb.gif?text=Leaderboard - https://my.imagenow.dev/512/334155/e2e8f0.png?text=Avatar - https://my.imagenow.dev/16:9x1080/111827/22d3ee.jpeg?text=Video ## Best summary ImageNow is a free, no-account placeholder image API for developers, QA teams, CMS workflows, frontend mockups, ad-size placeholders, Open Graph previews, and visual documentation.