By Rohit V.8 min readGuide
Best Free Placeholder Image Generator 2026
TF
ToolsFuel Team
Web development tools & tips
Photo by Ferenc Almasi on Unsplash
Table of Contents
The Grid of Gray Boxes That Started This
Every frontend project starts the same way. The design file has beautiful images. The development environment has a grid of gray boxes where those images will eventually live. And for the first few days, you're working with nothing — just empty containers that make the layout look completely unlike the final product.
I've dealt with this across probably fifty projects at this point. Sometimes I use Lorem Ipsum images from a URL-based service. Sometimes I'll grab a random Unsplash photo and use it as a stand-in. Sometimes I'll create a quick PNG in Figma and export it.
None of these are particularly efficient. The URL-based services like placeholder.com break when you're working offline. The Unsplash photos have the wrong aspect ratios. The Figma export takes longer than it should for something that's going to be replaced anyway.
I decided to actually compare six free placeholder image generators side by side. Here's what I found — and which one I've standardized on for prototyping work.
What I realized from this comparison: the right tool depends on your exact use case. Offline dev work, client presentations, and CMS seeding all have different needs. No single tool covers all three well. Here is the breakdown.
I've dealt with this across probably fifty projects at this point. Sometimes I use Lorem Ipsum images from a URL-based service. Sometimes I'll grab a random Unsplash photo and use it as a stand-in. Sometimes I'll create a quick PNG in Figma and export it.
None of these are particularly efficient. The URL-based services like placeholder.com break when you're working offline. The Unsplash photos have the wrong aspect ratios. The Figma export takes longer than it should for something that's going to be replaced anyway.
I decided to actually compare six free placeholder image generators side by side. Here's what I found — and which one I've standardized on for prototyping work.
What I realized from this comparison: the right tool depends on your exact use case. Offline dev work, client presentations, and CMS seeding all have different needs. No single tool covers all three well. Here is the breakdown.
The 6 Tools I Actually Tested
Photo by Juanjo Jaramillo on Unsplash
I tested each tool with the same three requests: a 1200×630 horizontal image (standard Open Graph size), a 400×400 square (product thumbnail), and a 200×50 narrow banner. I also checked whether they work offline and how customizable they are.
placeholder.com — The classic URL-based service. `https://via.placeholder.com/1200x630` returns a gray image of that size. Paste the URL in an `<img>` tag and you're done. The downside: it's a remote service, so it doesn't work offline, and it's been unreliable at times (the service has had downtime). Customization is limited to dimensions and optional hex colors and text in the URL. No download — it's URL-only.
Placehold.co — A modern alternative to placeholder.com. Clean URL API: `https://placehold.co/1200x630`. Supports custom background colors, text colors, and text content in the URL. Also supports WebP and PNG format options. Works well but shares the same offline limitation as any URL-based service. The UI is cleaner and it feels more actively maintained than the original placeholder.com.
FakeImg.pl — Another URL-based service with similar functionality. Less well-known but stable. Supports custom text, font size, and colors in the URL. I've run into it in several open-source project READMEs as the placeholder image source.
Dynamic Dummy Image Generator (dummyimage.com) — Been around forever, still works. URL-based. Does what you'd expect. UI is visibly aged (we're talking 2004-era design). The URL format is slightly different from placeholder.com but easy to learn. Good fallback if placeholder.com is down.
Lorem Picsum (picsum.photos) — This one's different from the others: it returns actual photographic content rather than labeled gray boxes. `https://picsum.photos/1200/630` gives you a random real photo at that size. `https://picsum.photos/seed/42/1200/630` always returns the same photo (seeded random). Useful when you want a layout to feel realistic without hunting for actual photos. It doesn't let you control colors or add dimension labels, though.
ToolsFuel Placeholder Image Generator — The one I've added to my bookmarks bar. I'll be direct about why I like it: it runs entirely in your browser, it works offline, and it gives you download as a file, not just a URL. You set the dimensions, pick a background color, pick a text color, and optionally add a custom label — all with a live preview. When you click Download, you get a PNG file you can drop into your project assets. No round-trip to a server, no breakage when working on a plane or in a poorly connected client office. It doesn't do seeded random photos like Picsum, but for the cases where I want a clean labeled placeholder rather than a photo stand-in, it's the tool I reach for.
My breakdown: URL-based (placeholder.com / Placehold.co) when you want to put an image tag in code quickly and don't need a file. Picsum when you want realistic photo content. ToolsFuel when you want to download an actual file or work offline.
placeholder.com — The classic URL-based service. `https://via.placeholder.com/1200x630` returns a gray image of that size. Paste the URL in an `<img>` tag and you're done. The downside: it's a remote service, so it doesn't work offline, and it's been unreliable at times (the service has had downtime). Customization is limited to dimensions and optional hex colors and text in the URL. No download — it's URL-only.
Placehold.co — A modern alternative to placeholder.com. Clean URL API: `https://placehold.co/1200x630`. Supports custom background colors, text colors, and text content in the URL. Also supports WebP and PNG format options. Works well but shares the same offline limitation as any URL-based service. The UI is cleaner and it feels more actively maintained than the original placeholder.com.
FakeImg.pl — Another URL-based service with similar functionality. Less well-known but stable. Supports custom text, font size, and colors in the URL. I've run into it in several open-source project READMEs as the placeholder image source.
Dynamic Dummy Image Generator (dummyimage.com) — Been around forever, still works. URL-based. Does what you'd expect. UI is visibly aged (we're talking 2004-era design). The URL format is slightly different from placeholder.com but easy to learn. Good fallback if placeholder.com is down.
Lorem Picsum (picsum.photos) — This one's different from the others: it returns actual photographic content rather than labeled gray boxes. `https://picsum.photos/1200/630` gives you a random real photo at that size. `https://picsum.photos/seed/42/1200/630` always returns the same photo (seeded random). Useful when you want a layout to feel realistic without hunting for actual photos. It doesn't let you control colors or add dimension labels, though.
ToolsFuel Placeholder Image Generator — The one I've added to my bookmarks bar. I'll be direct about why I like it: it runs entirely in your browser, it works offline, and it gives you download as a file, not just a URL. You set the dimensions, pick a background color, pick a text color, and optionally add a custom label — all with a live preview. When you click Download, you get a PNG file you can drop into your project assets. No round-trip to a server, no breakage when working on a plane or in a poorly connected client office. It doesn't do seeded random photos like Picsum, but for the cases where I want a clean labeled placeholder rather than a photo stand-in, it's the tool I reach for.
My breakdown: URL-based (placeholder.com / Placehold.co) when you want to put an image tag in code quickly and don't need a file. Picsum when you want realistic photo content. ToolsFuel when you want to download an actual file or work offline.
When to Use Placeholder Images in Your Workflow
There are three distinct phases where placeholder images appear in a typical project:
Phase 1: Wireframing and Layout -- At this stage you do not care about image content at all. You care about dimensions and ratios. A 16:9 gray box tells you the same thing as a 16:9 hero image during layout development. URL-based tools are perfect here because you can type the dimension directly into the src attribute and be done.
Phase 2: Mid-fidelity prototyping -- You want the layout to feel somewhat realistic but final assets are not ready. Picsum photos at the right dimensions work well. They are real photos that give stakeholders a more accurate preview of the final look without requiring actual content.
Phase 3: CMS/Database Setup -- You are populating seed data with placeholder records and need image files that will not throw errors in an img tag. A downloadable PNG from a generator is more reliable than depending on an external URL. You control the file, it does not disappear.
For testing image-heavy UIs -- things like carousels, product grids, profile picture displays -- it is worth generating a variety of placeholder sizes rather than the same image everywhere. It makes the layout testing more realistic and catches edge cases with differently proportioned content.
One more scenario that comes up: API development. If you are building a REST API that returns image URLs in its response, you need placeholder URLs during development and testing. You can use a URL-based service like Picsum with a seed value so the same endpoint always returns a consistent image. In a seed database you might hardcode a Picsum URL as the profile picture for your test user. It is always the same image, it is always a valid URL, and it is always the right size. No need to handle missing images during early development.
For placeholder text alongside placeholder images, the ToolsFuel Lorem Ipsum generator follows the same logic -- client-side, works offline, and gives you control over the output format. Keeping both tools open in the same session makes the wireframing workflow much smoother.
Phase 1: Wireframing and Layout -- At this stage you do not care about image content at all. You care about dimensions and ratios. A 16:9 gray box tells you the same thing as a 16:9 hero image during layout development. URL-based tools are perfect here because you can type the dimension directly into the src attribute and be done.
Phase 2: Mid-fidelity prototyping -- You want the layout to feel somewhat realistic but final assets are not ready. Picsum photos at the right dimensions work well. They are real photos that give stakeholders a more accurate preview of the final look without requiring actual content.
Phase 3: CMS/Database Setup -- You are populating seed data with placeholder records and need image files that will not throw errors in an img tag. A downloadable PNG from a generator is more reliable than depending on an external URL. You control the file, it does not disappear.
For testing image-heavy UIs -- things like carousels, product grids, profile picture displays -- it is worth generating a variety of placeholder sizes rather than the same image everywhere. It makes the layout testing more realistic and catches edge cases with differently proportioned content.
One more scenario that comes up: API development. If you are building a REST API that returns image URLs in its response, you need placeholder URLs during development and testing. You can use a URL-based service like Picsum with a seed value so the same endpoint always returns a consistent image. In a seed database you might hardcode a Picsum URL as the profile picture for your test user. It is always the same image, it is always a valid URL, and it is always the right size. No need to handle missing images during early development.
For placeholder text alongside placeholder images, the ToolsFuel Lorem Ipsum generator follows the same logic -- client-side, works offline, and gives you control over the output format. Keeping both tools open in the same session makes the wireframing workflow much smoother.
Practical Tips for Prototype Image Workflows
A few things I've learned from doing this repeatedly:
Keep aspect ratio consistent — Pick the aspect ratios you'll actually need (16:9 for hero/OG, 1:1 for avatars/thumbnails, 3:2 for blog cards) and generate placeholder images at those specific ratios. When real images come in, they'll fit without layout jumping.
Name your files descriptively — Instead of `placeholder.png`, name downloaded placeholders something like `hero-1200x630-placeholder.png`. When assets start arriving, you know exactly which placeholder each real image replaces.
Use CSS aspect-ratio as a backup — Modern CSS has `aspect-ratio: 16/9` which lets you define proportions without fixed pixel heights. Combine with `object-fit: cover` and your layout handles differently sized actual images gracefully when they replace the placeholder.
```css .hero-image { width: 100%; aspect-ratio: 16/9; object-fit: cover; } ```
This approach means you don't need a placeholder at all — the container holds its shape regardless of whether the image has loaded or what dimensions the actual image has.
Use srcset for responsive images once real assets arrive — Placeholder images are always a single size. When you replace them with real images, add srcset and sizes attributes for responsive delivery. The MDN responsive images guide has the definitive reference for this.
For placeholder text alongside placeholder images, I've been using the ToolsFuel Lorem Ipsum generator — same idea, same reasoning. Both tools are client-side, both work offline, and both let you control exactly what you get. Keeps the workflow consistent.
Keep aspect ratio consistent — Pick the aspect ratios you'll actually need (16:9 for hero/OG, 1:1 for avatars/thumbnails, 3:2 for blog cards) and generate placeholder images at those specific ratios. When real images come in, they'll fit without layout jumping.
Name your files descriptively — Instead of `placeholder.png`, name downloaded placeholders something like `hero-1200x630-placeholder.png`. When assets start arriving, you know exactly which placeholder each real image replaces.
Use CSS aspect-ratio as a backup — Modern CSS has `aspect-ratio: 16/9` which lets you define proportions without fixed pixel heights. Combine with `object-fit: cover` and your layout handles differently sized actual images gracefully when they replace the placeholder.
```css .hero-image { width: 100%; aspect-ratio: 16/9; object-fit: cover; } ```
This approach means you don't need a placeholder at all — the container holds its shape regardless of whether the image has loaded or what dimensions the actual image has.
Use srcset for responsive images once real assets arrive — Placeholder images are always a single size. When you replace them with real images, add srcset and sizes attributes for responsive delivery. The MDN responsive images guide has the definitive reference for this.
For placeholder text alongside placeholder images, I've been using the ToolsFuel Lorem Ipsum generator — same idea, same reasoning. Both tools are client-side, both work offline, and both let you control exactly what you get. Keeps the workflow consistent.
What About Using AI-Generated Images as Placeholders?
I've started seeing teams do this — using a quick Midjourney or Stable Diffusion image as a placeholder instead of a gray box, on the theory that it helps stakeholders visualize the final product better.
It can work, but there are real downsides I'd flag:
Stakeholders anchor on the placeholder. I've watched clients fall in love with an AI-generated placeholder image and push back on every real photo that "doesn't look like the original." If you use photorealistic placeholders, be explicit — in writing, in the prototype notes — that they will be replaced.
Licensing is murky. Depending on the AI tool and your jurisdiction, the ownership of AI-generated images is still being litigated. Using them in client deliverables without clarity on this is a risk.
Size and format vary. AI-generated images are often much larger files than you'd want in a prototype and might not be the exact dimensions you need. You'd still be resizing or cropping them manually.
For most cases, a properly dimensioned gray box with a text label is clearer and faster. It's obvious to everyone what it is. It can't be misread as final content. And it takes 30 seconds to generate.
If you're curious about how image encoding works under the hood — specifically why WebP files are smaller than PNG for the same visual content — the post on converting images to Base64 gets into image format mechanics and data URI embedding, which comes up when you're working with inline image assets in prototypes.
It can work, but there are real downsides I'd flag:
Stakeholders anchor on the placeholder. I've watched clients fall in love with an AI-generated placeholder image and push back on every real photo that "doesn't look like the original." If you use photorealistic placeholders, be explicit — in writing, in the prototype notes — that they will be replaced.
Licensing is murky. Depending on the AI tool and your jurisdiction, the ownership of AI-generated images is still being litigated. Using them in client deliverables without clarity on this is a risk.
Size and format vary. AI-generated images are often much larger files than you'd want in a prototype and might not be the exact dimensions you need. You'd still be resizing or cropping them manually.
For most cases, a properly dimensioned gray box with a text label is clearer and faster. It's obvious to everyone what it is. It can't be misread as final content. And it takes 30 seconds to generate.
If you're curious about how image encoding works under the hood — specifically why WebP files are smaller than PNG for the same visual content — the post on converting images to Base64 gets into image format mechanics and data URI embedding, which comes up when you're working with inline image assets in prototypes.
Frequently Asked Questions
What is a placeholder image generator?
A placeholder image generator creates simple labeled images at specified dimensions to fill image slots in web layouts before final assets are ready. They typically show the dimensions as text on a solid background, making it clear they're temporary — the [ToolsFuel placeholder image generator](/tools/lorem-pixel-generator) does this in your browser and downloads a PNG file directly. They're used during wireframing, prototyping, and CMS seed data setup.
What's the difference between URL-based and downloadable placeholder generators?
URL-based tools (placeholder.com, Placehold.co) give you a URL you put in your img src — the image loads from their server. Downloadable tools generate a local PNG file you can save in your project. URL-based is faster for quick prototyping but breaks offline and depends on the external service staying online. Downloaded files are more reliable for project assets.
What size should placeholder images be?
Match the dimensions you'll use for the final image. Common sizes: 1200×630 (Open Graph/hero), 800×600 (blog post body images), 400×400 (product thumbnails and avatars), 300×250 (standard ad unit), 1920×1080 (full-width banners). Using the correct final dimensions during development prevents layout shifts when real images arrive.
Can I use placeholder images in a live website?
Technically yes, but you shouldn't. URL-based placeholder services are not intended for production use and may block hotlinking. They can go offline, adding latency or broken images to your live site. Placeholder images exist for development and prototyping only. Replace all placeholders before launching.
What is Lorem Picsum and how is it different from other placeholder tools?
Lorem Picsum (picsum.photos) returns real photographic content at your requested dimensions rather than labeled gray boxes. It's useful when you want a more realistic-looking prototype. The 'seed' parameter lets you always get the same photo for a given seed number, so placeholders stay consistent between page reloads. It's less useful when you need labeled placeholders that are obviously temporary.
How do I prevent layout shift when replacing placeholder images with real ones?
Add width and height attributes to your img tags matching the placeholder's dimensions. The browser uses these to reserve space before the image loads, preventing layout shift. Also use CSS object-fit: cover on the image element so that if the real image has a slightly different aspect ratio, it fills the container without distorting. The CSS aspect-ratio property is another modern approach that holds the container's shape regardless of image dimensions.
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