Back to Topics Directory
Topic Hub

#bot-detection (25 Repositories)

Ranked open-source repositories tagged with #bot-detection, scored by pull request acceptance likelihood and maintainer engagement velocity.

Topic Avg Merge Rate

45.6%

Avg Review Latency

26.8h

Filter by language

25 repositories tagged #bot-detection

S TierTypeScript 676

arcjet/arcjet-js

Runtime security for AI apps and agents: prompt injection detection, tool-call authorization, sensitive-data redaction, bot protection, and rate limiting. Drop it into your JS/TS code.

80.2%
Merge Rate
5h
First Review
80%
1st-Timers
6
Maintainers
A TierTypeScript 300

prosopo/captcha

Open-source, frictionless CAPTCHA and bot defense. A privacy-focused alternative to reCAPTCHA and hCaptcha.

82.2%
Merge Rate
4d
First Review
100%
1st-Timers
4
Maintainers
A TierPHP 3.5k

matomo-org/device-detector

The Universal Device Detection library will parse any User Agent and detect the browser, operating system, device used (desktop, tablet, mobile, tv, cars, console, etc.), brand and model.

88.4%
Merge Rate
17h
First Review
100%
1st-Timers
9
Maintainers
A TierJavaScript 220

WebDecoy/FCaptcha

Self-hosted, invisible CAPTCHA that detects AI agents driving real browsers. GDPR, WCAG 2.2 AA, and EAA: no cookies, no third-party data sharing, and no visual or audio puzzle. With a false-positive budget enforced in CI. Proof of work, drop-in for Turnstile and reCAPTCHA.

84.0%
Merge Rate
12h
First Review
100%
1st-Timers
2
Maintainers
A TierTypeScript 372

sqdshguy/wreq-js

HTTP client for Node.js with browser TLS fingerprint impersonation

81.8%
Merge Rate
7h
First Review
67%
1st-Timers
1
Maintainers
A TierPython 13.1k

seleniumbase/SeleniumBase

📊 Python APIs for Web Automation, E2E Testing, and Data Scraping. UC & CDP modes bypass bot-detection and handle CAPTCHAs. Includes a Stealth mode for Playwright.

84.6%
Merge Rate
-
First Review
100%
1st-Timers
1
Maintainers
A TierGo 15.1k

crowdsecurity/crowdsec

Open-source IDS/IPS, WAF and bot detection for Linux, Windows, Docker and Kubernetes, with a crowdsourced blocklist of malicious IPs.

65.9%
Merge Rate
20h
First Review
33%
1st-Timers
39
Maintainers
B TierPython 32.1k

CloakHQ/CloakBrowser

Stealth Chromium that passes every bot detection test. Drop-in Playwright replacement with source-level fingerprint patches. 30/30 tests passed.

28.7%
Merge Rate
-
First Review
50%
1st-Timers
54
Maintainers
B TierTypeScript 1.1k

thumbmarkjs/thumbmarkjs

A free, open-source javascript fingerprinting library

87.5%
Merge Rate
10d
First Review
100%
1st-Timers
0
Maintainers
B TierPython 3.1k

feder-cr/invisible_playwright

Playwright that anti-bots cannot see, so no captchas: same API, anti-detect stealth headless Firefox, undetected fingerprint, bypass bot detection, Python web scraping and browser automation.

65.3%
Merge Rate
-
First Review
0%
1st-Timers
4
Maintainers
B TierTypeScript 541

okasi/bot-signal

TypeScript bot detection: catch WebDriver, headless Chrome, Playwright/Puppeteer, robotic mouse/typing, datacenter IPs, JA3 TLS mismatch & timezone spoofing — browser + Node.

100.0%
Merge Rate
-
First Review
100%
1st-Timers
0
Maintainers
B TierPHP 1.5k 2 GFIs

tirrenotechnologies/tirreno

tirreno is an open-source framework for building sovereign security, compliance and fraud prevention applications. Detect account takeovers, cyberfraud and business logic abuse inside your product.

100.0%
Merge Rate
-
First Review
0%
1st-Timers
0
Maintainers
B TierJavaScript 10.2k

faisalman/ua-parser-js

UAParser.js - The Essential Web Development Tool for User-Agent Detection. Detect Browsers, OS, Devices, Bots, Apps, AI Crawlers, and more. Run in Browser (client-side) or Node.js (server-side).

100.0%
Merge Rate
24h
First Review
0%
1st-Timers
0
Maintainers
B TierJavaScript 355

redf0x1/camofox-browser

Anti-detection browser server for AI agents — REST API wrapping Camoufox engine with OpenClaw plugin support

33.3%
Merge Rate
22h
First Review
0%
1st-Timers
3
Maintainers
B TierJavaScript 11.4k

jo-inc/camofox-browser

Stealth headless browser for AI agents — bypass Cloudflare, bot detection, and anti-scraping. Drop-in Puppeteer/Playwright replacement.

29.7%
Merge Rate
9d
First Review
15%
1st-Timers
13
Maintainers
B TierPython 1.4k

cdpdriver/zendriver

A blazing fast, async-first, undetectable webscraping/web automation framework based on ultrafunkamsterdam/nodriver. Now with Docker support!

27.3%
Merge Rate
4h
First Review
0%
1st-Timers
2
Maintainers
B TierPython 137

arman-bd/chromiumfish

A stealth Chromium build with a drop-in Playwright harness for Python and Node, featuring natively built agentic capabilities.

0.0%
Merge Rate
-
First Review
0%
1st-Timers
0
Maintainers
C TierC# 410

totpero/DeviceDetector.NET

The Universal Device Detection library will parse any User Agent and detect the browser, operating system, device used (desktop, tablet, mobile, tv, cars, console, etc.), brand and model.

0.0%
Merge Rate
-
First Review
0%
1st-Timers
1
Maintainers
D TierPython 340

Bin-Huang/camoufox-cli

Anti-detect browser automation CLI & Skills for AI agents — Camoufox-powered fingerprint spoofing, no bot-detectable Playwright leaks

0.0%
Merge Rate
-
First Review
0%
1st-Timers
1
Maintainers
D TierGo 337

go-rod/stealth

anti-bot-detection with rod

0.0%
Merge Rate
-
First Review
0%
1st-Timers
0
Maintainers
D TierPHP 331

blackdotsh/getIPIntel

IP Intelligence is a free Proxy VPN TOR and Bad IP detection tool to prevent Fraud, stolen content, and malicious users. Block proxies, VPN connections, web host IPs, TOR IPs, and compromised systems with a simple API. GeoIP lookup available.

0.0%
Merge Rate
-
First Review
0%
1st-Timers
0
Maintainers
D TierPHP 1.1k

hisorange/browser-detect

Browser Detection for Laravel by hisorange!

0.0%
Merge Rate
-
First Review
0%
1st-Timers
0
Maintainers
D TierPython 480

tiliondev/fortress

Stealth Chromium engine that stops scrapers and browser agents from getting blocked, with one line of code change.

0.0%
Merge Rate
-
First Review
0%
1st-Timers
0
Maintainers
D TierTypeScript 1.5k

fingerprintjs/BotD

Free bot detection library that runs in the browser. Detects automation tools and frameworks. No server required, runs 100% on the client. MIT license, no usage restrictions.

0.0%
Merge Rate
-
First Review
0%
1st-Timers
0
Maintainers
D TierTypeScript 991

antibrow/antibrow

Kernel-level antidetect browser with the Playwright API you already write. Python + Node SDKs, MCP-ready, unlimited local profiles. Linux x64 + arm64, macOS Intel + Apple Silicon, Windows x64.

0.0%
Merge Rate
-
First Review
0%
1st-Timers
0
Maintainers
Best Bot-detection Open Source Repositories & C-Rank™ | GetMerged