2FA Authenticator vs qsa.sh
Side-by-side comparison of features, pros & cons, pricing, and community votes (2026).
🏆 qsa.sh leads with 111 upvotes
Modern authentication in Chrome. No server, no tracking.
2FA Authenticator is a innovative browser-based tool designed for secure, private two-factor authentication. Unlike traditional authenticators that require a separate app, account setup, or cloud access, this extension lives directly in your Chrome browser, offering a seamless and privacy-focused experience. It generates one-click authentication codes locally, eliminating the need for server interaction or tracking, which appeals to privacy-conscious users. Features like password-protected vaults, biometric unlocking with Touch ID, and the ability to share pre-computed codes via links make it a versatile choice for managing 2FA tokens efficiently. The emphasis on no server dependency and minimal data exposure positions this tool as a trustworthy solution for enhancing online security without sacrificing convenience. Whether for personal use or professional workflows, 2FA Authenticator simplifies multi-factor authentication while respecting user privacy.
Pros
- No server or cloud dependency, enhancing privacy
- Quick, one-click access to authentication codes
- Secure vault with password protection and biometric unlock
- Easy sharing of pre-computed codes via links
- Browser-based, eliminating need for additional apps or devices
Cons
- Limited to Chrome browser, may not support other browsers
- Features and updates depend on browser extension support
- Potential learning curve for new users unfamiliar with browser extensions
Best for
- • Managing 2FA codes for multiple online accounts directly in Chrome
- • Enhancing security for remote work and online banking
- • Sharing temporary or one-time codes securely with trusted contacts
- • Reducing reliance on phone-based authenticators for quick access
Pricing: Pricing not verified
External security scan of your own IP, in your terminal
qsa.sh is a powerful command-line tool designed for developers and security professionals to perform quick, comprehensive external security scans of their own servers. With a single curl command, users can instantly see what the internet perceives about their server—covering open ports, service versions, and known vulnerabilities—delivered directly to their terminal within approximately 30 seconds. Its integration of tools like naabu, nmap, vulners, and nuclei ensures a detailed mapping of potential security gaps without requiring any accounts or data storage. The platform caters to both free, live scans and premium options like the Pro plan, which scans all 65,535 ports asynchronously, and a one-time Deep scan that digs deeper into hidden vulnerabilities via email. Its straightforward approach makes it ideal for sysadmins, security teams, and developers seeking a quick, transparent security overview of their infrastructure.
Pros
- Instant, real-time security insights delivered directly in the terminal
- No account required and no data storage, ensuring privacy
- Combines multiple scanning tools for comprehensive vulnerability detection
- Flexible plans including free, Pro, and deep scans for different needs
- Fast scan times (~30 seconds) suitable for routine checks
Cons
- Limited depth in the free scan compared to paid options
- Requires command-line familiarity, which may be intimidating for non-technical users
- Potential false positives or overlooked vulnerabilities in quick scans
Best for
- • Quickly auditing server security before deployment
- • Regular external vulnerability checks for ongoing security posture
- • Preliminary scans prior to detailed penetration testing
- • Monitoring open ports and services on cloud or on-premise servers
Pricing: Likely operates on a freemium model with free live scans and paid plans offering more comprehensive, asynchronous, or one-time deep scans. Exact pricing details are not specified, but premium features probably start around a monthly fee.