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Placeholder Image Generator

Placeholder image generator: create images by size, background, text and format with bulk and preview for design dev, with one-click copy, offline and multilingual.

Cách sử dụng

Set size, text and colors, then generate and download the placeholder.

Overview

Placeholder Image Generator is a pro-design tool that Placeholder image generator: create images by size, background, text and format with bulk and preview for design dev, with one-click copy, offline and multilingual. It runs 100% in your browser with no upload, so you get instant results with privacy. Whether you need a quick answer or batch processing with precise control, you can enter, validate and export in seconds. The UI is responsive on mobile, tablet and desktop and supports one-click copy.

Use cases

  • Pick color-blind-friendly sequences for charts and dashboards
  • Experiment with gradients and shadows for illustrations and video
  • Convert HEX to RGB/HSL and copy as CSS variables for handoff
  • Check WCAG contrast while picking UI colors to avoid accessibility rejections
  • Use it to cross-check “占位图、placeholder” in reports, docs or APIs to avoid manual conversion errors

How to use

  1. 1 Pick a color via picker or enter HEX/RGB/HSL values
  2. 2 Switch color spaces and watch live preview and contrast scores
  3. 3 Copy results as CSS, Tailwind or design-token formats
  4. 4 Export palettes as ASE/JSON for Figma or Photoshop

Highlights

  • Local & private: processing stays in your browser
  • Live validation with tolerant parsing
  • One-click copy and export for docs, code or sheets
  • Batch and offline support under poor network

Notes

  • Displays vary—verify critical colors on target devices
  • Alpha affects blended contrast; re-check on final background
  • Export large palettes in batches to avoid memory spikes

FAQ

Why does contrast fail?
Foreground/background luminance is too close—aim for at least 4.5:1 for body text.
Is conversion lossy?
No. Conversions use standard sRGB/HSL/HSV formulas with high precision.
How is Placeholder Image Generator different?
It runs locally with a focus on speed and privacy, plus tolerant parsing for “占位图、placeholder” and one-click copy for reuse.
Can I use results in official reports?
Use it as a working draft and cross-check with authoritative sources; keep the exported log and parameters for traceability.
Tip：Tip: Bookmark this page or pin the tab; find related tools via categories and search (convert → calculate → export).
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All calculations run locally in your browser; nothing is uploaded.