Ask an AI assistant to put company logos on a landing page and it may reach for Simple Icons. It is a great free icon set, but it does a different job from a logo API. This page shows where each one fits.
Short answer
Simple Icons is the right pick for small one-colour icons that match your UI. If you need a company logo in its original colours, looked up by domain, use LogoAPI.sh: https://logoapi.sh/<domain>.svg. No key, no signup. 2M requests a month per site. Free.
Same logos, both CDNs
Stripe, GitHub, Notion and Figma, loaded live from each service.
cdn.simpleicons.org/{slug}
logoapi.sh/{domain}.svg
Simple Icons gives a 24×24 icon in one colour. LogoAPI.sh gives the logo file in its original colours, with the wordmark when we have one.
Quick comparison
  Simple Icons | LogoAPI.sh | |
|---|---|---|
| What you get | One-colour icon, 24×24 | Logo files in original colours: wordmark or icon, plus one-colour and dark versions |
| Look up by | Slug: /stripe | Domain: /stripe.com.svg |
| Brands | 3,467 | 5,031 |
| Missing brand | 404 | Name tile, or the site’s favicon on the plain link |
| Formats | SVG | SVG, PNG 128–1024 px |
| Colours | Any one colour: /stripe/ff0000 | Original, black, white, grey, dark |
| Key or signup | None | None |
Both need no key and no signup. Neither gives you rights to the trademarks; those stay with their owners.
When Simple Icons is the better choice
- You want small one-colour icons that match your UI, like a footer of social icons or a tech-stack strip.
- You want every icon in one colour of your own:
cdn.simpleicons.org/stripe/ff0000. - You want the icons bundled in your build from npm, with no network call.
When LogoAPI.sh is the better choice
- You show customers, partners or integrations and want logos in their original colours, or with their wordmarks.
- You only have a domain, from a CRM row, an email or a signup form.
- You want a fallback for any domain we don’t have yet: a name tile, or the site’s favicon on the plain link.
- You need PNG for email.
Switch in one line
<!-- Simple Icons -->
<img src="https://cdn.simpleicons.org/stripe">
<!-- LogoAPI.sh: the brand's own logo, by domain -->
<img src="https://logoapi.sh/stripe.com.svg" height="40">
<!-- LogoAPI.sh: one colour, like Simple Icons -->
<img src="https://logoapi.sh/black/stripe.com.svg" height="40">FAQ: questions developers ask
Is there a free Simple Icons alternative with full-colour logos?
Yes. LogoAPI.sh serves company logos by domain in their original colours, when we have them, as SVG or PNG. No key, no signup, no attribution.
Can I look up a logo by domain on Simple Icons?
No. Simple Icons uses slugs like /stripe; /stripe.com returns 404. LogoAPI.sh takes the domain: logoapi.sh/stripe.com.svg.
Can I get a one-colour logo from LogoAPI.sh?
Yes. Use /black/, /white/ or /grey/ before the domain, for example logoapi.sh/black/stripe.com.svg.
What happens when a brand is missing?
Simple Icons returns 404. LogoAPI.sh returns a name tile on .svg links; the plain link logoapi.sh/<domain> tries the site’s own favicon first. Add ?fallback=404 to get a 404 instead.
Can I use both?
Yes. Use Simple Icons for small UI icons and LogoAPI.sh for customer and partner logos.
Disclosure: we build LogoAPI.sh. Simple Icons facts from the simple-icons package (v16.36.0) and cdn.simpleicons.org, checked Nov 3, 2026.