Placeholder Image Generator

Placeholder images fill the gap between design and real content. They're useful in component libraries, data-table mockups, profile-card prototypes, and anywhere you need to show "this is where an image will be" without serving real assets. The right placeholder makes the layout feel finished; the wrong one (broken image icon, real third-party photo) is distracting.

What this generator outputs

An SVG (or PNG, configurable) at any dimension you specify, with options for:

• Background color and text color.
• Dimension label baked in (so you can tell which placeholder is which at a glance).
• Aspect-ratio presets (square, 4:3, 16:9, golden, social-media-specific sizes).
• Pattern overlays (dots, lines, noise) for visual differentiation.

When to use what

• Solid color rectangles — minimal, fast, good for component libraries.
• Labeled placeholders (1200×600) — design comps where reviewers need to know intended dimensions.
• Photos from a curated source — Unsplash via the Source API, picsum.photos. Realistic feel, but real third-party content; not for production.
• Skeleton loaders — animated grey blocks. The right pattern for production, not dev.
• Avatar initials — better than generic placeholder for user-profile mocks.

Pitfalls

• Hot-linking external placeholder services. picsum.photos, lorempixel, etc. — every page render becomes a third-party request. Bad for privacy, sometimes bad for performance, hostile to CSP.
• Forgetting alt text. Even placeholders should have alt="placeholder" in dev so accessibility audits in CI don't fail.
• Shipping placeholders to production. Add a build-time check that fails if any img src points at a known placeholder host or pattern.
• Wrong aspect ratio. A 4:3 placeholder in a 16:9 slot makes the layout feel wrong even when it looks "fine".

SVG vs PNG vs WebP

• SVG. Tiny (often < 1 KB), scales perfectly, encodes the dimension label as text. Best for solid-color placeholders. Embed inline as a data URL or external file.
• PNG. Better when you need raster textures or you're feeding into a CMS that won't accept SVG.
• WebP. Smaller than PNG. Almost universally supported in 2026.

This generator runs in-browser and ships SVG by default — no external dependencies, no third-party requests in your prototype, no leaked URLs in your repo.

Frequently Asked Questions