npm93Exceptionalhealth index
arcjet/arcjet-jsArcjet JavaScript (JS) / TypeScript SDK. Stop bots and automated attacks from burning your AI budget, leaking data, or misusing tools with Arcjet's AI security building blocks.
TypeScript★ 675↓ 719K/moJul 19, 2026
Packagist93Exceptionalhealth index
matomo-org/device-detectorThe 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.
PHP★ 3,502↓ 1.1M/moJul 15, 2026
npm92Excellenthealth index

faisalman/ua-parser-jsUAParser.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).
JavaScript★ 10.2K↓ 122M/moAug 12, 2026
PyPI91Excellenthealth index
Python★ 13K↓ 3M/moAug 27, 2026
PyPI88Excellenthealth index

feder-cr/invisible_playwrightFree antidetect browser stealth for Playwright: undetected headless Firefox fingerprint. Python scraping, recaptcha and bot detection bypass. Open source
Python★ 1,974↓ 15.7K/moSep 4, 2026
npm88Excellenthealth index
prosopo/captchaOpen-source, frictionless CAPTCHA and bot defense. A privacy-focused alternative to reCAPTCHA and hCaptcha.
TypeScript★ 297↓ 32.5K/moJul 30, 2026
npm87Excellenthealth index

jo-inc/camofox-browserStealth headless browser for AI agents — bypass Cloudflare, bot detection, and anti-scraping. Drop-in Puppeteer/Playwright replacement.
JavaScript★ 8,924↓ 243.1K/moAug 28, 2026
PyPI81Excellenthealth index
cdpdriver/zendriverA blazing fast, async-first, undetectable webscraping/web automation framework based on ultrafunkamsterdam/nodriver. Now with Docker support!
Python★ 1,375Jul 27, 2026
PyPI · npm80Excellenthealth index

CloakHQ/CloakBrowserStealth Chromium that passes every bot detection test. Drop-in Playwright replacement with source-level fingerprint patches. 30/30 tests passed.
Python · C# · TypeScript★ 29.6K↓ 1M/moAug 5, 2026
Python★ 8↓ 2,907/moAug 20, 2026
F4RAN/cuimp-tsA Node.js wrapper for curl-impersonate that allows you to make HTTP requests that mimic real browser behavior, bypassing many anti-bot protections.
TypeScript★ 89↓ 22.7K/moAug 1, 2026
Go · npm67Goodhealth index
sardanioss/httpcloakGo HTTP client with browser-identical TLS/HTTP2 fingerprinting. Bypass bot detection by perfectly mimicking Chrome, Firefox, and Safari at the cryptographic level (JA3/JA4, Akamai fingerprint, header order). Supports HTTP/1.1, HTTP/2, HTTP/3, sessions, cookies, and proxies.
Go · C#★ 1,161Jul 15, 2026
npm · Go · PyPI65Goodhealth index
WebDecoy/FCaptchaOpen-source, invisible CAPTCHA that detects AI agents, bots, and headless browsers via 40+ behavioral signals, device & TLS fingerprinting, and SHA-256 proof of work. Self-hosted and privacy-first.
JavaScript · Go · Python★ 171↓ 2,190/moJul 17, 2026
PyPI62Moderatehealth index
icvoss/django-wafSelf-hosted WAF middleware for Django: rate limiting, anomaly scoring, proof-of-work challenges, form protection, and nginx blocklists
Python★ 3↓ 2,824/moJul 19, 2026
npm · PyPI60Moderatehealth index
Bin-Huang/camoufox-cliAnti-detect browser automation CLI & Skills for AI agents — Camoufox-powered fingerprint spoofing, no bot-detectable Playwright leaks
Python · TypeScript★ 321↓ 1,386/moJul 28, 2026

motiv8-team/go-ua-parserHigh-performance, zero-allocation HTTP User-Agent parser for Go — browser, OS, device, bot & AI crawler detection with Client Hints support
Go★ 4Aug 13, 2026
Packagist57Moderatehealth index
PHP★ 7↓ 4,046/moJul 24, 2026
rohitkhatri1st/ghost-captchaAnimated Font and CAPTCHA library for Go — invisible in any single frame, only readable in motion. Resists OCR and AI vision models.
Go★ 12Jul 21, 2026
Go★ 70Jul 17, 2026

Octanium91/ua-parserHigh-performance, cross-platform User-Agent parser: one Go core for Go, Java, Node.js, Python, plus a REST service and WASM/browser. Client Hints (Sec-CH-UA) priority, bot & AI-crawler detection, and a regex + correction database that hot-updates at runtime — no redeploy.
Go · Java★ 0Sep 1, 2026
PyPI51Moderatehealth index
lncrawl/scraperHTTP scraper with Cloudflare bypass, stealth mode, TLS rotation, proxy support, and a null-safe BeautifulSoup wrapper
Python★ 1↓ 5,920/moJul 31, 2026

ultrafunkamsterdam/nodriverSuccessor of Undetected-Chromedriver. Providing a blazing fast framework for web automation, webscraping, bots and any other creative ideas which are normally hindered by annoying anti bot systems like Captcha / CloudFlare / Imperva / hCaptcha
Python★ 4,648Aug 12, 2026
Packagist42Weakhealth index
PHP★ 4↓ 2,659/moAug 3, 2026
DaKheera47/scrapereconCLI recon tool for scraper developers. Detects TLS fingerprinting, JS challenges, bot protection, and rate limits across 4 stages
Python★ 42↓ 39/moAug 1, 2026
PyPI33At Riskhealth index
Python · Go★ 19Jul 17, 2026
Python★ 12.8KAug 12, 2026
PyPI · npm29At Riskhealth index
Python★ 98Jul 30, 2026