Placeholder Image Generator
占位图假图生成原型开发placeholder
Generate placeholder images with custom dimensions, background/text colors and diagonal texture as instant PNGs — for prototypes, mockups and demos, fully local.
All processing is done locally.
How to Use
- Paste any valid JSON, supports nesting, arrays and escapes
- Click Beautify to auto indent and format
- Click Minify to remove whitespace into one line
- All operations run locally for privacy
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FAQ
What is the maximum size?
Up to 4000 px per side, covering most web and document scenarios; larger sizes may hit canvas limits.
Can I use these in production?
Yes, the PNG is a real file; for production prefer self-hosted static assets for reliability.
Is anything uploaded?
No, the image is drawn locally in your browser.