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Lorem Picsum Placeholder Image URL Builder
Generate Lorem Picsum placeholder image URLs for mockups, prototypes, blog drafts. 6 standard ratios, 5 popular sizes (banner, OG, IG Story), grayscale + blur.
Standard ratios
Common sizes
Same seed = same image. Empty = random each load.
0-10. 0 = no blur.
Preview
URL
<img> tag
Markdown
Generate multiple unique URLs
Count:
Lorem Picsum (picsum.photos) is a free placeholder image service — no API key needed. Great for prototypes, mockups, and blog drafts.
What is Lorem Picsum?
Lorem Picsum (picsum.photos) is a free placeholder image service — sourced from Unsplash, no API key, CORS-friendly. URL pattern:
https://picsum.photos/<width>/<height> # random
https://picsum.photos/seed/<seed>/<w>/<h> # stable per seed
https://picsum.photos/<w>/<h>?grayscale # black & white
https://picsum.photos/<w>/<h>?blur=5 # blur 5/10 When to use it
- Figma → code prototypes: nice placeholder images instead of grey boxes.
- Blog drafts: no real image yet → use Picsum temporarily.
- Hero mockups: generate a 1920×400 banner — paste into HTML/Astro.
- Responsive testing: real images at large sizes to check breakpoints.
- Lazy-load demos: many unique URLs for infinite scroll experiments.
Tips
- Seeds: same seed → same image, so designers and devs see the same thing. E.g. seed "ai" for an AI hero.
- Multi URLs: generate 5-50 URLs at once for galleries or infinite scroll demos.
- OG image preview: use 1200×630 to test Twitter/Facebook share cards.
- Avoid in production: Picsum has no SLA — production should use self-hosted images or a CDN.
Related
- Image to Base64 — encode for LLM vision
- Image Compressor
- QR Code Generator
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UUID / Hash / Base64 / URL
Bundle: UUID v4, SHA-256/512 hash, Base64 (URL-safe), URL encode.