Placeholder Image Generator

About This Tool

Generate placeholder images instantly for mockups, wireframes and dev testing: any pixel size, custom colors, optional label — downloaded as a clean PNG. Designers fill layouts before photography exists; developers create deterministic fixtures for automated visual tests. Output is deterministic: identical settings always produce a byte-identical file, which is exactly what regression testing wants.

How to Use This Tool

1. Set width and height, or pick a preset (1200×630, 800×600, 64×64...).
2. Choose background and text colors from the pickers.
3. Optionally type a label — dimensions, category names, "photo à venir".
4. Generate, preview and download the PNG.
5. Repeat for each size in your layout kit; every file stays under a few KB.

Advantages & Use Cases

Fill wireframes with realistic gray blocks at exact column widths, stress-test a resize pipeline with odd dimensions like 637×411, or produce uniform category cards for a client deck before the real photos arrive. QA teams generate fixture sets for pixel-comparison suites.

Supported Formats & Recommendations

• PNG always: flat colors stay crisp and files stay tiny even at 3000 px.
• Odd, realistic dimensions in tests expose rounding bugs that round numbers hide.
• No metadata is embedded — clean fixtures only.

How We Test This Tool

Validation covers exact dimensions on odd sizes, exact color values with no gamma drift, centered labels at every scale, and byte-identical repeat generation with identical settings.

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Helpful Resources

Frequently Asked Questions

Can I generate a transparent placeholder?

Yes — set the background to transparent and export; useful for overlay mockups.

Are there metadata or EXIF in the files?

No. Minimal clean PNGs — the safest choice for automated test fixtures.

Can I generate many sizes fast?

Yes — adjust and generate in sequence; each file downloads immediately.