sampleimg

Developer images from a URL.URLだけで開発用画像を生成。

Free Placeholder Image API with deterministic mock images, QR, OG, Avatar, Chart & more. No API key required.決定性モック画像、QR、OG、アバター、チャートなどに対応した無料画像API。APIキー不要です。

Fast高速Customizableカスタマイズ可能Auto-Cached自動キャッシュFree無料

FREE DEVELOPER TOOL

Chart Image Generator

Turn a short list of numbers into a bar or line chart image. Add it to demos, documentation, and UI prototypes with one URL.

https://sampleimg.com/chart?type=bar&data=10,25,15,30
Chart settings
LIVE PREVIEWReady
chart generator preview

Use this image

Copy and paste
Image URL
Html
Markdown
Css
React / Next.js

USE CASE

Built for prototypes

Populate an analytics screen before real data exists, while keeping the chart source easy for an AI coding agent to understand.

No account, API key, database, or client-side image renderer is required. Use the generated URL anywhere an image URL is accepted.

DOCUMENTATION

Simple URLs, predictable output

Change a query parameter, refresh the preview, and reuse the URL in HTML, Markdown, CSS, or React.

Read the concise API guide

FAQ

Frequently asked questions

Which chart types are supported?

The endpoint supports bar and line charts with 2 to 50 numeric values.

Are labels required?

No. Labels are optional and can be supplied as comma-separated values.