r/startups is a subreddit for everything related to startups. Here is how they describe themselves: The community for ventures designed to scale rapidly. Welcome to /r/startups, the place to discuss startup problems and solutions. Startups are companies that are designed to grow and scale rapidly. r/startups has 1.6 million members and is among the top 1% of subreddits by size.

Buy and Sell Startup MVPs with No Commission. Join startup founders and investors looking for their next acquisition.

Clerk is a comprehensive user management and authentication platform designed to streamline how developers handle user accounts within web and mobile applications. It offers a suite of embeddable UI components—such as <SignIn/>, <SignUp/>, <UserButton/>, and <UserProfile/>—that integrate seamlessly into your application without redirecting users off-site. These components are fully customizable to match your brand, making the user experience cohesive and frictionless. Under the hood, Clerk provides a robust API and SDKs compatible with modern frameworks like Next.js, Remix, React, and Expo. It handles the entire authentication lifecycle, supporting multifactor authentication (MFA), session management, passwordless sign-in (via magic links or one-time passcodes), and traditional password-based methods with breach detection. The platform also integrates social sign-on (SSO) with over 20 providers, enabling quick user onboarding while adhering to security best practices. Clerk’s security posture includes SOC 2 Type 2 certification and CCPA compliance, with continuous third-party audits and penetration testing. Fraud prevention measures, like disposable email blocking and bot detection powered by machine learning, are built-in to reduce spam and abusive sign-ups. For B2B SaaS applications, Clerk provides advanced multi-tenancy features, enabling organization-based user management with custom roles, permissions, auto-join functionality based on email domains, and invitation systems—all accessible through both code and an admin dashboard. Developers benefit from rapid integration, significantly reducing the time spent on building authentication systems from scratch. Clerk acts as the single source of truth for user data and integrates seamlessly with popular backend services like Supabase, Firebase, and Convex. With free access for up to 10,000 monthly active users, it’s positioned as a scalable solution that grows with your application’s needs.

Stytch provides a suite of tools designed to simplify authentication, authorization, and security for web and mobile applications. If you're developing an app and need a way for users to log in—whether with passwords, passkeys, or entirely passwordless methods—Stytch offers APIs and SDKs that handle these complexities. Their focus is on making authentication seamless for both developers and end-users while ensuring high security standards. For businesses, particularly B2B SaaS companies, Stytch enables advanced features like multi-tenancy, role-based access control (RBAC), and single sign-on (SSO). They provide an embeddable admin portal, allowing enterprise customers to manage their own authentication configurations, organizational settings, and integrations with identity providers—without constant developer involvement. Stytch places a strong emphasis on scalability and flexibility. Their tools are designed to “just work” across a range of use cases, from simple consumer apps to complex enterprise platforms. Developers can choose how much of the authentication flow they want to control—using pre-built UI components for quick implementation or leveraging headless SDKs and backend APIs for a fully customized experience. Security and fraud prevention are also core to Stytch’s offering. They provide real-time bot detection, device-aware multi-factor authentication, and intelligent rate limiting to protect against credential stuffing and other forms of account abuse. Their infrastructure ensures that login codes and authentication requests are delivered reliably, even when SMS or email providers fail. Stytch supports a broad range of programming languages and frameworks, including Python, Node.js, Java, React, and iOS, making integration into existing tech stacks straightforward. Their platform is designed for developers who want to build secure, user-friendly authentication systems without reinventing the wheel.

Formerly known as Angel List Talent, this job board focuses on startup jobs. You can filter by location, remote preferences, salary, equity percentage, years of experience, remote-first companies, investment stage, company size etc. Wellfound allows you to save and name your searches and filters to make job search easier. Finally, you can create a profile and apply for most jobs directly from Wellfound, and companies can discover your profile and reach out to you directly.

Schedles is an all-in-one social media management platform designed specifically for content creators looking to amplify their online presence. Packed with cutting-edge features such as advanced post scheduling, AI-driven content generation, and seamless cross-platform publishing to Threads, Instagram, TikTok, and LinkedIn, Schedles simplifies your workflow, freeing you up to focus on what you do best—creating captivating content. Our user-friendly interface allows you to effortlessly plan and manage your content calendar, ensuring that you never miss an opportunity to engage your audience. With our AI-powered tools, you can quickly generate innovative ideas and optimize your posts for maximum visibility and interaction, helping you achieve significant growth across all your social media channels. Whether you're a solo creator or part of a collaborative team, Schedles is engineered to enhance your productivity and fine-tune your social media strategy, empowering you to connect with your audience more effectively. Begin your journey toward a more organized, impactful, and successful online presence with Schedles today!

Foundy.com is the first AI-enabled platform specialising in long-term exit planning and successful M&A deal execution. Whether you're preparing for an exit within 1 to 36 months or exploring buy-side acquisition opportunities, Foundy offers an AI-powered SaaS platform combined with expert advisors who specialise in your company’s industry niche. We provide a comprehensive toolkit, including buyer and deal flow sourcing, templates and access to a thriving community of exited founders and buyers, all designed to maximise shareholder value and ensure a successful transaction. Foundy also has a generous referral programme for those who connect us with buyers or sellers.

CasperPractice helps aspiring health students prepare for the Casper test for a fraction of the cost of tutoring. It uses AI to generate practice questions and review students' answers, including video answers. Key Features - Question bank: 150+ realistic Casper-style questions - Question simulator: an environment that simulates a real Casper question, including a timer. - Answer reviews: detailed feedback and a grade on the student's submitted answer. Benefits - Effective preparation: students can prepare effectively, increasing their chances of getting a good score on the Casper test. - Affordable: CasperPractice is a fraction of the cost of traditional tutoring. Use Case A student would use CasperPractice to help them prepare for the Casper test.

Italki is a platform connecting language teachers, mostly native speakers, with students. You can book, pay, and schedule your classes directly through their website. The classes are one on one, just you and the teacher, and conducted over a video call. I used Italki successfully before going to Thailand for the first time. My wife who is Thai gave me an Italki gift card. There are plenty of teachers to chose from and the rates are affordable. You'll pay anywhere from $10 to about $20 for a class.