M
API Matrix

RoboHash API

⭐ Beginner's Pick Test Data / No Auth Required Beginner HTTPS
Free to Use Varies (check documentation)
52 Score
Grade D
Visit Official Site Compare Alternatives

Overview

RoboHash generates unique robot, monster, or human avatar images from any text string — just embed a URL in an img tag and you get an instant avatar. It is completely free with no API key required. Use it to give every user a distinct placeholder image during development.

💡

Beginner Tip

RoboHash returns an image file directly, not JSON — use the URL as an img src in HTML or download it with a fetch/curl call. Different text inputs always produce different images.

Available Data

randomly generated data
customizable output format
RoboHash data via REST API
JSON-formatted response data
Freely accessible without authentication

Example Response

JSON Response 
{
  "status": "success",
  "data": {
    "result": "Data from RoboHash",
    "description": "Generate random robot/alien avatars",
    "timestamp": "2025-01-15T10:00:00Z"
  }
}

Field Reference

(binary image) Response body is a PNG/JPG/SVG image file — no JSON fields; use the URL directly as an image source

Implementation Example 

const url = "https://robohash.org/";
const response = await fetch(url);
if (!response.ok) throw new Error(`Request failed: ${response.status}`);
const data = await response.json();
console.log(data);

What Can You Build?

Note: These code examples are AI-generated and unverified. Always refer to the official API documentation for accurate usage.

Common Errors & Troubleshooting

Same image for different inputs Identical or very similar strings hash to the same image
✓ Use unique identifiers like user IDs or UUIDs as the path string
Image not displayed in browser CORS issue when fetching the image via JavaScript fetch()
✓ Use the URL directly as an img src attribute instead of fetching with JS
Wrong avatar style returned Default is robot set (set1)
✓ Add ?set=set2 (monsters), set=set3 (robot heads), or set=set4 (cats) to the URL

Matrix Score Breakdown

🌐 Reachability 15/30
⚡ Speed 2/20
🔒 Security 15/15
🛠 Developer XP 20/20
✓ Reliability 0/15
Response Time 3389ms

Fully tested on Apr 5, 2026

Technical Specifications

Auth No Auth
HTTPS REQUIRED
CORS UNKNOWN
Category Test Data
Difficulty Beginner
Verified: 2026-04-04

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