Botd

API

Free browser-side JavaScript library for bot detection

Overview

Botd is a lightweight open-source client-side JavaScript library by FingerprintJS for detecting bots in web browsers. It analyzes browser signals like user agent strings, environment properties, and behavioral patterns to identify automated tools (e.g., headless browsers, Puppeteer, Selenium). The library returns structured JSON results with bot probability scores, bot type classification, and confidence levels. Use cases include protecting web apps from bot-driven fraud, content scraping, form spam, and unauthorized automated access. It integrates via npm or script tag with minimal setup, requiring no server-side dependencies.

Example Integration (JavaScript)

script.js JS


fetch('https://github.com/fingerprintjs/botd')
  .then(res => res.json())
  .then(data => console.log(data))
  .catch(err => console.error(err));

Key Features

Client-side JavaScript library
Detects bots (headless browsers, automation frameworks)
JSON response format
Easy integration (npm/script tag)
Open source (MIT license)
Real-time browser signal analysis

Frequently Asked Questions

? Is Botd free to use?

Yes, Botd is an open-source library released under the MIT license, making it free for both personal and commercial use.

? Does it require an API Key?

No, Botd runs directly in the user's browser as a client-side library, so no API key is needed for integration.

? What is the response format?

Botd returns detection results in JSON format, including fields like bot probability, bot type (e.g., headless Chrome, Puppeteer), and confidence level.

Top Alternatives

FingerprintJS Pro Bot Detection Search Google

Cloudflare Bot Management Search Google

Akamai Bot Manager Search Google

Tool Info

Pricing Free

Category Security

Platform Public API

Pros

⊕ Free and open-source (MIT license)
⊕ Lightweight (minimal performance impact)
⊕ No API key or server-side dependency
⊕ Accurate bot type identification
⊕ Simple integration into web projects

Cons

⊖ Vulnerable to client-side tampering by sophisticated bots
⊖ Limited to browser-based detection (no server-side support)
⊖ Requires JavaScript execution (bots disabling JS may avoid detection)
⊖ Less comprehensive than enterprise bot management tools