S11 Avatar

S11-Avatar.com - Generate professional avatars with initials from names instantly. Free API with no limiting or login required. No usage tracking and no information is stored. The final images are cached, but nothing else. Just write name or surname, or both.

+1,615,474
Monthly requests
2.8931ms
Avg. Processing Time

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PNG

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API Documentation

How to Use Avatar Generator API

All requests return an image stream to be used directly in an <img/> tag. Perfect for profile pictures, user avatars, and placeholder images.

Basic usage:
GET s11-avatar.com/api/avatar?name=John+Doe
With custom colors:
GET s11-avatar.com/api/avatar?background=0D8ABC&color=fff
Random background:
GET s11-avatar.com/api/avatar?background=random&name=S11+User

Avatar API Parameters & Customization Options

ParameterDescriptionDefaultExample
nameName to generate initialsJohn Doe
?name=Elon+Musk
sizeAvatar size in pixels (16-512)64
?size=128
backgroundBackground color (hex, no #)f0e9e9
?background=ff0000
colorText color (hex, no #)8b5d5d
?color=ffffff
font-sizeFont size as percentage (0.1-1)0.5
?font-size=0.33
lengthLength of generated initials (takes last N words)2
?length=1
roundedCircular avatarfalse
?rounded=true
boldBold font weightfalse
?bold=true
uppercaseUppercase the initialstrue
?uppercase=false
formatImage formatpng
?format=svg

Frequently Asked Questions

Is S11 Avatar completely free to use?

Yes, S11 Avatar is 100% free with unlimited usage. No registration, no API keys, no rate limits. We process over 1.6 million requests monthly at no cost to users.

What image formats does S11 Avatar support?

S11 Avatar supports both PNG and SVG formats. PNG is perfect for most use cases, while SVG provides scalable vector graphics ideal for responsive designs and print materials.

How fast is the S11 Avatar API response time?

Our API processes requests in just 2.8ms on average, making it one of the fastest avatar generation services available. Images are cached for even better performance.

Can I use S11 Avatar for commercial projects?

Absolutely! S11 Avatar is free for both personal and commercial use. Many developers integrate our API into their websites, mobile apps, and SaaS platforms.

Does S11 Avatar work with Vietnamese names?

Yes, S11 Avatar fully supports Vietnamese names and characters. It correctly extracts initials from Vietnamese names like "Nguyễn Văn A" → "NVA".

What sizes can I generate with S11 Avatar?

You can generate avatars from 16px to 512px. Common sizes include 32px, 64px, 128px, and 256px for various use cases from small icons to large profile pictures.