Sites like Clerk

01 · Entity

About Clerk

Clerk clerk.com

Clerk | Authentication and User Management

The easiest way to add authentication and user management to your application. Purpose-built for React, Next.js, Remix, and “The Modern Web”.

Top 10K · #3,065 English 7 technologies Crawled Nov 6, 2026

Visit Clerk

Summary by Claude

Clerk provides hosted authentication and user management for web applications. It includes prebuilt sign-in and profile UI components, multifactor authentication, social login, session management, organizations and multi-tenancy, and bot and fraud prevention.

Who it’s for

Software developers building web apps, especially React and Next.js

Business model

Subscriptions

• authentication software
• user authentication API
• Next.js authentication
• social sign-on
• multifactor authentication
• magic links
• session management
• multi-tenant organizations and roles
• enterprise SSO

02 · Embedding space

Competitor map

Each alternative by how close its vector is to Clerk’s (x) and how much traffic it gets, how much of the stack it shares, or where it sits in the embedding space itself (y). Lines split each axis at the median. Hover for the numbers, click to jump to it in the list.

Startup Clerk takes on Auth0. What it does differently

1. 01
   Clever clever.com Top 1K English

   Clever

   • Google Search Console
   • Google Workspace
   • Amazon SES
   • Apple Business
   • Cloudflare
   • DocuSign

   0 say Clever is a good alternative to Clerk 0 say Clever isn’t a real alternative to Clerk

   Comment
   Close cos 0.893
2. 02
   ClassLink classlink.com Top 1K English

   ClassLink | Identity & Access Management for Education

   ClassLink is a provider of identity and access management products offering instant access to apps and files with SSO, class rostering, account provisioning, and analytics.

   • Google Search Console
   • Adobe Fonts
   • Apple Business
   • Atlassian
   • Cloudflare
   • Google Fonts

   0 say ClassLink is a good alternative to Clerk 0 say ClassLink isn’t a real alternative to Clerk

   Comment
   Close cos 0.885
3. 03
   Plesk plesk.com Top 1K

   web hosting and data center automation software

   • Google Search Console
   • Meta Business Suite
   • Apple Business
   • Atlassian
   • Cloudflare DNS
   • GlobalSign

   0 say Plesk is a good alternative to Clerk 0 say Plesk isn’t a real alternative to Clerk

   Comment
   Close cos 0.885
4. 04
   Auth0 auth0.com Top 1K English

   Secure Authentication & Ship Faster | Auth0

   Secure users, AI agents, and more with Auth0, a production-ready authentication and authorization platform built to help you ship faster and drive sign-ups.

   • Google Search Console
   • Next.js
   • React
   • Vercel
   • Adobe
   • Adobe Experience Platform Tags

   0 say Auth0 is a good alternative to Clerk 0 say Auth0 isn’t a real alternative to Clerk

   Comment
   Close cos 0.884
5. 05
   Okta okta.com Top 1K English

   Secure Identity for Employees, Customers, and AI | Okta

   The Okta and Auth0 Platforms enable secure access, authentication, and automation — putting identity at the heart of business security and growth.

   • Google Search Console
   • Adobe
   • Adobe Experience Manager
   • Adobe Experience Platform Tags
   • Apple Business
   • Atlassian

   0 say Okta is a good alternative to Clerk 0 say Okta isn’t a real alternative to Clerk

   Comment
   Close cos 0.875
6. 06
   LinkedIn linkedin.com Top 100 English

   LinkedIn: Log In or Sign Up

   1 billion members | Manage your professional identity. Build and engage with your professional network. Access knowledge, insights and opportunities.

   • Google Search Console
   • Apple Business
   • Atlassian
   • Azure DNS
   • Cloudflare
   • DocuSign

   0 say LinkedIn is a good alternative to Clerk 0 say LinkedIn isn’t a real alternative to Clerk

   Comment
   Close cos 0.877
7. 07
   larksuite.com Top 10K English

   Lark | Productivity Superapp for Chat, Meetings, Docs & Projects

   Lark is a productivity superapp for teams. Get chat, docs, meetings, workflow automations & AI for free all in one place.

   • Google Search Console
   • Google Workspace
   • Google Tag Manager
   • HubSpot
   • Intercom
   • Microsoft 365

   0 say larksuite.com is a good alternative to Clerk 0 say larksuite.com isn’t a real alternative to Clerk

   Comment
   Close cos 0.870
8. 08
   Replit replit.com Top 10K English

   AI App and Website Builder | Replit

   Describe what you want. Replit builds it. Get a working app or website in minutes. No coding required.

   • Google Search Console
   • Google Workspace
   • Next.js
   • React
   • Apple Business
   • Cloudflare

   0 say Replit is a good alternative to Clerk 0 say Replit isn’t a real alternative to Clerk

   Comment
   Close cos 0.872
9. 09
   NLnet Labs nlnetlabs.nl Top 10K English

   NLnet Labs - Home

   Research & Development, Internet architecture, DNS, Routing, Stability and Security.

   • Google Workspace
   • Adobe Fonts
   • Bootstrap
   • Font Awesome
   • jQuery
   • nginx

   0 say NLnet Labs is a good alternative to Clerk 0 say NLnet Labs isn’t a real alternative to Clerk

   Comment
   Close cos 0.871
10. 10
    Citrix citrix.com Top 10K English

    Explore the Enhanced Citrix Platform: Secure, Scalable, and High-Performing IT Solutions - Citrix

    Discover the new Citrix platform, revolutionizing application delivery with enhanced security, Zero Trust frameworks, and unmatched performance. Dive into industry-specific solutions for healthcare, financial services, and government. Uncover new use cases with Citrix and NetScaler, from centralized app management to mission-critical application delivery.

    • Google Search Console
    • Google Workspace
    • Adobe
    • Adobe Experience Manager
    • Adobe Experience Platform Tags
    • Akamai

    0 say Citrix is a good alternative to Clerk 0 say Citrix isn’t a real alternative to Clerk

    Comment
    Close cos 0.870
11. 11
    Fingerprint fpjs.io Top 10K English

    Fingerprint | Identify Every Web Visitor & Mobile Device

    The Fingerprint device intelligence platform works across web and mobile applications to identify all visitors with industry-leading accuracy — even if they’re anonymous.

    • Google Search Console
    • Google Workspace
    • Vercel
    • Astro
    • Google Fonts
    • Google Tag Manager

    0 say Fingerprint is a good alternative to Clerk 0 say Fingerprint isn’t a real alternative to Clerk

    Comment
    Close cos 0.869
12. 12
    Semrush semrush.com Top 10K English

    Semrush: Your Unfair Advantage for Growing Brand Visibility

    Semrush is the leading platform to grow and measure brand visibility across AI search, SEO, PPC, social, and more.

    • Google Search Console
    • Google Workspace
    • Meta Business Suite
    • Adobe
    • Amazon SES
    • Apple Business

    0 say Semrush is a good alternative to Clerk 0 say Semrush isn’t a real alternative to Clerk

    Comment
    Close cos 0.872
13. 13
    Vercel vercel.com Top 10K English

    Agentic Infrastructure - Vercel

    The autonomous stack for every app and agent.

    • Google Search Console
    • Google Workspace
    • Next.js
    • React
    • Vercel
    • Amazon SES

    0 say Vercel is a good alternative to Clerk 0 say Vercel isn’t a real alternative to Clerk

    Comment
    Close cos 0.866
14. 14
    HashiCorp hashicorp.com Top 10K English

    Vercel Security Checkpoint

    American software company

    • Google Search Console
    • Vercel
    • Adobe
    • Apple Business
    • Astro
    • Atlassian

    0 say HashiCorp is a good alternative to Clerk 0 say HashiCorp isn’t a real alternative to Clerk

    Comment
    Close cos 0.866
15. 15
    myhostadmin.net Top 10K

    独立控制面板登录

    虚拟主机，我司是专业的虚拟主机域名注册主机租用服务商，全面支持：JSP虚拟主机,PHP虚拟主机,ASP虚拟主机,ASP.NET虚拟主机,PERL虚拟主机,JAVA虚拟主机. 近50项全系列网站管理工具。全国依靠的双线、多线机房，全国畅通无阻！

    • jQuery
    • OpenResty

    0 say myhostadmin.net is a good alternative to Clerk 0 say myhostadmin.net isn’t a real alternative to Clerk

    Comment
    Close cos 0.866
16. 16
    ClickUp clickup.com Top 10K

    ClickUp™ | Maximize productivity • Software, AI, and humans converge

    Our mission is to make the world more productive. To do this, we built the everything app for work - Tasks, Docs, Goals, and Chat.

    • Google Search Console
    • Google Workspace
    • Meta Business Suite
    • Next.js
    • React
    • Adobe

    0 say ClickUp is a good alternative to Clerk 0 say ClickUp isn’t a real alternative to Clerk

    Comment
    Close cos 0.865
17. 17
    Notion notion.com Top 10K English

    The AI workspace that works for you. | Notion

    Build Custom Agents, search across all your apps, and automate busywork. The AI workspace where teams get more done, faster.

    • Google Search Console
    • Next.js
    • React
    • Vercel
    • Cloudflare
    • Cloudflare DNS

    0 say Notion is a good alternative to Clerk 0 say Notion isn’t a real alternative to Clerk

    Comment
    Close cos 0.864
18. 18
    iubenda iubenda.com Top 10K English

    Compliance Solutions for Websites, Apps and Organizations | iubenda

    iubenda is your 360° compliance solution for global data privacy laws. Privacy policy generator, cookie consent management, ROPA, Terms and more.

    • Google Search Console
    • Amplitude
    • Apple Business
    • Bootstrap
    • bunny.net
    • consentmanager

    0 say iubenda is a good alternative to Clerk 0 say iubenda isn’t a real alternative to Clerk

    Comment
    Close cos 0.868
19. 19
    securly.com Top 10K

    American web filtering software provider

    • Google Search Console
    • Google Workspace
    • Amazon SES
    • Apple Business
    • HubSpot
    • Amazon Route 53

    0 say securly.com is a good alternative to Clerk 0 say securly.com isn’t a real alternative to Clerk

    Comment
    Close cos 0.864
20. 20
    Turnitin turnitin.com Top 10K

    ERROR: The request could not be satisfied

    Internet-based plagiarism-prevention service

    • Google Search Console
    • Google Workspace
    • Meta Business Suite
    • Amazon SES
    • Apple Business
    • Atlassian

    0 say Turnitin is a good alternative to Clerk 0 say Turnitin isn’t a real alternative to Clerk

    Comment
    Close cos 0.864

Ranked by score: the cosine similarity of each site’s vector to clerk.com’s, less a small penalty for generic sites that are close to everything. Highlighted technologies are ones Clerk uses too. Votes and comments come from visitors and don’t change the ranking.

04 · Fingerprints

Technology

What Clerk is built with, and what its closest competitors use, from its homepage’s code and its DNS records.