Page 75 | Best Application Development Software for Startups of 2025

Kakoune

Kakoune is a highly efficient, modal text editor that focuses on real-time feedback and powerful, intuitive multi-selection capabilities. Inspired by Vim but offering its own distinct approach to modal editing, Kakoune prioritizes a selection-based workflow that makes text manipulation feel natural and fluid. Instead of commands operating on cursors, commands operate on selections, allowing users to edit and navigate with precision and speed. Kakoune features robust multi-caret editing, context-aware autocompletion, and extensive language support, with performance optimized for working with large files and complex codebases. Designed to be scriptable and extendable with shell commands, Kakoune integrates smoothly with UNIX tools, giving users flexibility in customization. Known for its responsiveness and adaptability, Kakoune is ideal for developers who prefer a keyboard-driven interface and appreciate real-time, immediate feedback in their editing workflow.

Starting Price: Free

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Google Cloud Code

Google

Cloud Code is a set of AI-assisted IDE plugins for popular IDEs that make it easier to create, deploy, and integrate applications with Google Cloud. Duet AI is integrated with Cloud Code, providing AI assistance directly in your IDE. Cloud Code supports your favorite IDEs, including VS Code, JetBrains IDEs, Cloud Workstations, and Cloud Shell Editor. It brings Duet AI inside your favorite IDEs, speeds up your GKE and Cloud Run development with Skaffold integration, simplifies creating configuration files for Google Cloud services and technologies, and makes it easy to integrate Cloud APIs and work with Google Cloud services within your IDE. Duet AI, your AI-powered collaborator, is available across Google Cloud and your IDE to help you get more done, faster. Cloud Code allows you to easily test and debug apps on Google Cloud directly from your IDE, supporting workloads including Compute Engine, GKE, and Serverless.

Starting Price: Free

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goormIDE

goormIDE is a powerful cloud-based Integrated Development Environment (IDE) designed to enhance productivity for developers and teams. It allows users to build customized development environments with just a few clicks, facilitating coding, building, running, and debugging directly within a web browser. The platform provides access to Linux-based containers via a fully-featured web terminal, enabling installation and configuration akin to a local machine. Real-time collaboration is a key feature, allowing multiple developers to edit source code simultaneously and communicate effectively within the same environment. Additionally, goormIDE integrates seamlessly with Git and Subversion repositories, offering a user-friendly interface for cloning, editing, committing, pushing, and pulling projects. This flexibility and ease of use make goormIDE a valuable tool for developers seeking efficient and collaborative coding solutions.

Starting Price: $7 per month

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PaizaCloud

On PaizaCloud Cloud IDE, you can operate Linux servers in your browser. You can manage and edit files, run commands, or start a web server/database server, all in a browser alone. You don't need to use troublesome commands to log in, edit files, or upload files anymore. You can operate Linux servers on the cloud just like a computer in front of you. Your new Linux server environment will be set up in just 3 seconds. You can copy an existing server environment, and you can also freely operate multiple Linux servers. Because the new server is set up instantly, you can challenge installing or developing software without worrying about breaking down. All you need is a browser to use your workspace environment from any PC or Mac. You can use the same workspace environment from anywhere without always having to carry the same computer around. For programming schools, coding boot camps, universities, and colleges, students can use the same development environment at school and at home.

Starting Price: $9.80 per month

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Keepsake

Replicate

Keepsake is an open-source Python library designed to provide version control for machine learning experiments and models. It enables users to automatically track code, hyperparameters, training data, model weights, metrics, and Python dependencies, ensuring that all aspects of the machine learning workflow are recorded and reproducible. Keepsake integrates seamlessly with existing workflows by requiring minimal code additions, allowing users to continue training as usual while Keepsake saves code and weights to Amazon S3 or Google Cloud Storage. This facilitates the retrieval of code and weights from any checkpoint, aiding in re-training or model deployment. Keepsake supports various machine learning frameworks, including TensorFlow, PyTorch, scikit-learn, and XGBoost, by saving files and dictionaries in a straightforward manner. It also offers features such as experiment comparison, enabling users to analyze differences in parameters, metrics, and dependencies across experiments.

Starting Price: Free

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Skaffold

Skaffold is an open source command-line tool that streamlines the development workflow for Kubernetes applications. It automates the processes of building, pushing, and deploying your application, allowing you to focus on writing code. Skaffold supports various tools and technologies, offering flexibility in choosing your preferred build and deployment methods. It features a pluggable architecture, enabling integration with different implementations of the build and deploy stages. Skaffold is lightweight, operating entirely on the client side without adding overhead or maintenance burdens to your Kubernetes cluster. It facilitates fast local Kubernetes development by detecting source code changes and handling the pipeline to build, push, test, and deploy your application automatically. Skaffold also provides continuous feedback by managing deployment logging and resource port-forwarding. Its context-aware capabilities allow the use of profiles, local user configurations, etc.

Starting Price: Free

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Early

EarlyAI

Early is an AI-driven tool designed to automate the generation and maintenance of unit tests, enhancing code quality and accelerating development processes. By integrating with Visual Studio Code (VSCode), Early enables developers to produce verified and validated unit tests directly from their codebase, covering a wide range of scenarios, including happy paths and edge cases. This approach not only increases code coverage but also helps identify potential issues early in the development cycle. Early supports TypeScript, JavaScript, and Python languages, and is compatible with testing frameworks such as Jest and Mocha. The tool offers a seamless experience by allowing users to quickly access and refine generated tests to meet specific requirements. By automating the testing process, Early aims to reduce the impact of bugs, prevent code regressions, and boost development velocity, ultimately leading to the release of higher-quality software products.

Starting Price: $19 per month

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Tips.io

Our editor is based on VS Code so you'll feel right at home. It has Tailwind class autocomplete. It even knows your custom shortcuts and custom Tailwind config. It's kind of like Claude's AI code to preview the generator. Except Tailwind focused, a bunch of cool features, and you can pick individual pieces of the page to update. It doesn't matter if you are a Tailwind genius or have never seen it before in your life. We deeply integrate to make editing feel like tweaking a configuration. Out of the box, Tips.io supports the world's best Tailwind animation library. Easily combine presets or create custom animations to enhance your website's interactivity and visual appeal. Scaffold out entire websites at ludicrous speeds. The perfect tool for starting fresh or even wireframing out a website. Just grab from our big list of free themes and components. You can't forget the small things. Out of the box you'll get some extra peace of mind with zero setup.

Starting Price: $15 per month

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AutoFlow Studio

Utilize Autoflow's industry-leading test recorder for local test execution and immediate results. Efficiently manage and edit tests using AI. Create reusable and randomized test steps and set them as variables for future use. Leverage Autoflow's cloud-based test execution for scheduled or CI/CD-triggered runs. Seamlessly integrate tests using our CLI, API, or predefined schedules. Create efficient, continuous testing workflows for optimal efficiency. Receive real-time alerts via email, Slack, or other platforms through our integrations. Generate clear and sharable reports for efficient stakeholder communication. Invite unlimited team members to collaborate on tests. Easily re-record specific test steps without starting over. Create and manage reusable test nodes for efficiency. AutoFlow makes it easy to create, execute, and maintain your test suites. Get granular control over your tests with AutoFlow Studio.

Starting Price: Free

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Tempest

Tempest DX

Tempest helps teams deliver better code, faster, by providing a ready-to-use developer self-serve experience without the months of setup. It empowers developers to build, deploy, and manage independently, with built-in security and compliance guardrails. With Tempest’s unified platform—combining everything teams need from a service catalog and software ownership to powerful end-to-end automation—organizations boost developer productivity, accelerate time to market, and maximize return on engineering investments. With Tempest, you can: - Improve cross-team collaboration and get full visibility into your cloud - Accelerate release cadence and increase quality via developer self-serve - Ensure adherence to organizational security and compliance standards - Streamline cloud resource management on a single platform

Starting Price: $10/month/user

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SvelteKit

SvelteKit is a framework for rapidly developing robust, performant web applications using Svelte. It addresses common development challenges by providing solutions for routing, server-side rendering, data fetching, service workers, TypeScript integration, and more. SvelteKit apps are server-rendered by default, offering excellent first-load performance and SEO benefits, but can transition to client-side navigation to enhance user experience. The framework is designed to grow with developers, allowing them to start simple and add new features as needed. SvelteKit leverages Vite for a fast and feature-rich development experience, including hot module replacement. In short, Svelte is a way of writing user interface components, like a navigation bar, comment section, or contact form, that users see and interact with in their browsers. The Svelte compiler converts your components to JavaScript that can be run to render the HTML for the page and to CSS that styles the page.

Starting Price: Free

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StartFast

StartFast is a minimalistic SaaS starter kit designed for rapid setup and ease of use, enabling developers and entrepreneurs to launch their projects swiftly. Built with Next.js 14, Supabase, TailwindCSS, and Stripe, it offers a clean codebase that eliminates unnecessary complexities, allowing users to focus on their core ideas. Key features include passwordless authentication, simple Stripe Checkout integration for straightforward payments, and a flexible token-based usage model that supports modern pay-per-use pricing structures. The platform emphasizes simplicity, with a database schema comprising just four lines, and comprehensive documentation that makes it accessible even to novices. StartFast provides both free and pro versions; the pro version includes AI-powered tools for generating SEO-optimized blog posts and landing pages, on-page SEO analysis, keyword research integration, and centralized configuration for easy customization.

Starting Price: $99 per month

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Gravity

The SaaS boilerplate handles the complex, boring code like payments and authentication, while you build fun features that generate revenue. Download the full SaaS boilerplate codebase from Github. Follow the setup wizard to have a working SaaS app in minutes. Start adding your features then launch your app at warp speed. Eliminate time-consuming, complex boilerplate code. Save 400+ coding hours. Build a profitable SaaS business fast. Focus on features that matter, ones customers will pay for. Save thousands of dollars and get access to a professional SaaS development support network. 20 years of commercial Javascript experience. Built a tech startup to $5,000,000 in sales. Served on startup boards as a technical advisor. Mentored hundreds of startups on accelerators. Spoken at development conferences across the world. Both the front-end React client and back-end Node.js server are written in Javascript.

Starting Price: $417 per month

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NextAuth.js

NextAuth.js is an open source authentication solution tailored for Next.js applications, offering seamless integration with popular services like Google, Facebook, Auth0, and Apple. It supports various authentication methods, including OAuth 1.0 & 2.0, email/passwordless sign-ins, and custom username/password systems. Designed for flexibility, NextAuth.js operates efficiently in serverless environments and supports multiple databases such as MySQL, PostgreSQL, MSSQL, and MongoDB, allowing developers to choose between database sessions or JSON Web Tokens (JWT). Security features include signed, prefixed, server-only cookies, HTTP POST with CSRF token validation, and encrypted JWTs using JWS/JWE/JWK standards. The platform facilitates easy setup, enabling developers to add authentication in minutes with minimal configuration. Comprehensive documentation and a supportive community further enhance its accessibility for developers seeking a robust authentication system.

Starting Price: Free

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Auth.js

Auth.js is an open-source authentication library designed to integrate seamlessly with modern JavaScript frameworks, providing a flexible and secure authentication experience. It supports various authentication methods, including OAuth (e.g., Google, GitHub), credentials, and WebAuthn, allowing developers to choose the most suitable approach for their applications. Auth.js is compatible with multiple frameworks, such as Next.js, SvelteKit, Express, Qwik, and SolidStart, enabling developers to implement authentication across different platforms. The library offers built-in support for popular databases like Prisma, Drizzle ORM, Supabase, Firebase, and TypeORM, facilitating user data management. Security features include signed cookies, CSRF token validation, and encrypted JSON Web Tokens (JWTs), ensuring robust protection for user data. Auth.js is designed to operate efficiently in serverless environments and provides comprehensive documentation and examples.

Starting Price: Free

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Basejump

Basejump is an open-source SaaS starter kit that enhances Supabase applications by adding authentication, personal and team accounts, member permissions, and subscription billing management through Stripe. Developers can integrate Basejump into existing projects with a single migration file, utilizing Supabase libraries across various programming languages such as JavaScript, Python, Go, and Swift. The platform offers customizable React components built on shadcn and Tailwind CSS, facilitating rapid deployment with full control over the user interface. Basejump leverages Supabase's Row Level Security (RLS) policies to enforce data access restrictions based on user roles, ensuring secure and efficient permission management. All data is stored within the user's Supabase database, allowing for extensive customization and extension with additional tables as needed. This flexibility enables developers to use Basejump as a standalone authentication and billing system.

Starting Price: Free

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Nextless.js

The fastest way to build scalable and production-ready SaaS products. Nextless.js is a comprehensive SaaS starter kit designed to expedite the development of scalable and production-ready applications using Next.js and serverless technologies. It integrates essential features such as authentication via AWS Cognito, including email and social logins, multi-factor authentication, and subscription payments through Stripe with webhook support. The platform facilitates team collaboration by allowing users to invite teammates via email and supports multi-tenancy with tenant isolation using the silo model. Developers benefit from built-in user and admin dashboards, customizable forms, and a responsive landing page theme styled with Tailwind CSS. Nextless.js emphasizes a high-quality developer experience by incorporating TypeScript, ESLint, Prettier, and Husky, and leverages the AWS ecosystem, including Amplify, API Gateway, and AWS CDK.

Starting Price: $699 one-time payment

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Nextacular

Nextacular is an open source starter kit designed to expedite the development of full-stack, multi-tenant SaaS applications. Built with modern technologies such as Next.js, Tailwind CSS, and Prisma, it offers a suite of out-of-the-box features to streamline the development process. These features include authentication via magic links and social logins through NextAuth, database integration with relational databases like PostgreSQL and MySQL, and multi-tenancy support to serve multiple customers across different subdomains or custom domains using a single unified codebase. Nextacular also provides teams and workspaces functionality, allowing users to invite team members to collaborate within workspaces. The platform includes a customizable landing page, billing and subscription management through Stripe integration, and simple design components built with Tailwind CSS that can be configured according to your design system.

Starting Price: Free

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SaaS UI

Saas UI is a purpose-built toolkit designed to expedite the development of high-quality applications by providing a comprehensive suite of React components and starter kits. It offers over 40 open-source components, including authentication screens compatible with services like Clerk, Supabase, and Magic, fully functional forms utilizing React Hook Form, and data tables powered by React Table. Built atop industry-leading libraries such as Chakra UI, React Query, and Recharts, Saas UI ensures accessibility by adhering strictly to WAI-ARIA standards and supports full customization through theming and style props. The platform includes a Figma design system, aligning design and development processes seamlessly. Saas UI Pro extends these capabilities with advanced components and tools for billing, onboarding, feature management, and sign-up flows, accompanied by a boilerplate app compatible with Next.js and Electron.

Starting Price: €197 one-time payment

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SaaSBold

SaaSBold is a full-stack, production-ready Next.js SaaS boilerplate and starter kit, meticulously crafted to enhance both front-end and back-end functionality while prioritizing an optimal developer experience. It integrates essential features such as user authentication via Auth.js, supporting social logins and magic links, and payment processing through Stripe, with upcoming support for Paddle and LemonSqueezy. The platform utilizes PostgreSQL managed by Prisma for efficient database operations and includes transactional email capabilities powered by Resend. Developers benefit from pre-built admin and user dashboards, customizable UI components styled with Tailwind CSS, and a Figma design source for seamless design integration. SaaSBold also offers marketing tools like MailChimp newsletter integration, AI features through OpenAI, and internationalization support for multi-language applications. Deployment is streamlined with a one-click option via Vercel.

Starting Price: $149 one-time payment

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Veloz

Veloz is a versatile SaaS boilerplate designed to accelerate the development of software-as-a-service applications by offering a collection of pre-built templates and starter kits. Unlike traditional boilerplates that confine developers to a specific framework or language, Veloz provides the flexibility to select preferred technologies across various components, including frontend frameworks like Next.js, React, and Vue.js, as well as backend services, databases, payment gateways, mailing systems, authentication methods, and SEO tools. This adaptability enables developers to scaffold projects effortlessly, integrate necessary services, and focus on innovation rather than setup. Veloz's architecture supports responsive interface creation with ready-made components, seamless integration with chosen frontend frameworks, performance optimization through intelligent caching and lazy loading, and built-in state management for complex applications.

Starting Price: $199 one-time payment

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shadcn/ui

Shadcn/ui is an open source collection of beautifully designed, accessible, and customizable components that developers can seamlessly integrate into their applications. Built with Tailwind CSS, these components are designed for easy copying and pasting, facilitating rapid development without compromising on design quality. The library offers a diverse range of components, including buttons, sidebars, avatars, tabs, and charts, all crafted to ensure both aesthetic appeal and functional excellence. Shadcn UI emphasizes composability and theming, allowing developers to tailor components to align with specific project requirements and branding guidelines. The platform provides comprehensive documentation and examples, aiding developers in effectively implementing and customizing components within their projects. By leveraging Shadcn UI, developers can expedite the creation of user interfaces, ensuring consistency and accessibility across applications.

Starting Price: Free

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Fyno

Liberate engineering teams from managing notification infrastructure. Empower product teams to manage notification workflows. Manage templates across all channels using a centralized interface. Get AI insights on omni-channel messaging that can directly impact engagement. Manage workflows and providers without touching the codebase. Send high-volume notifications without scaling issues. Collaborate and manage channel-wise templates for each communication in one place. Ensure 100% deliverability with smart routing flows and failover protocols. Manage your integrations, templates, routes & workflows in one place. Get real-time analytics, reports, and insights out of the box. Fyno delivers value across your organization. Fyno consolidates logs from all your channels and vendors. No need for logging into multiple platforms for data. Deploy a notification center in your applications with Fyno's in-app SDK, and customize it as per your app design.

Starting Price: $249 per month

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Mantine

Mantine is a comprehensive React component library designed to facilitate the rapid development of accessible and fully functional web applications. It offers over 100 customizable components and 50 hooks, encompassing a wide range of UI elements such as inputs, buttons, modals, popovers, typography, and layout management tools. Built with TypeScript, Mantine ensures type safety across applications, and its components are compatible with modern frameworks like Next.js and Remix. The library provides native support for dark themes, allowing developers to implement dark mode with minimal configuration. Customization is a key feature, with components supporting extensive visual modifications through props, enabling quick prototyping and experimentation. Mantine also facilitates flexible theming, allowing the extension of the default theme with additional colors, shadows, radius, spacing, fonts, and other properties to meet specific design requirements.

Starting Price: Free

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Shipixen

Shipixen is an application that generates customized Next.js boilerplate code, enabling users to create and deploy websites with their own branding, themes, and selected pages in minutes. It offers features such as AI-generated content, pre-built themes, customizable pricing pages, and SEO-optimized blogs powered by MDX. The platform supports dark mode, and TypeScript, and includes a UI library built with Shadcn UI. Users receive a Git repository or a zip file containing the code, which can be modified and deployed to any host supporting Next.js. Shipixen facilitates one-click deployment to platforms like Vercel and Netlify, streamlining the launch process. Shipixen is an app that generates boilerplate code with your branding, pages, and much more. We make a deployment to Vercel for you as part of the generation process. The generated output doesn't currently include any payment integration; it'll only create a landing page, blog, pricing page & other pages you have selected.

Starting Price: $249 per year

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Next.js Boilerplates

Next.js Templates

Solid is a robust Next.js SaaS boilerplate and starter kit, crafted for creating fully functional SaaS startup websites. It's packed with all the key integrations required for a swift launch of your next SaaS startup. Solid is geared with all the major integrations, components, and pages needed for a seamless launch and other essential UI elements. With Solid, the development of your SaaS product using Next.js and the most advanced tech stacks becomes a walk in the park. Key features include cutting-edge technologies built on Next.js 14, React, and TypeScript, offering swift loading times, advanced features, and an optimum user experience. Blog management is facilitated with Sanity CMS, allowing seamless content creation with on-demand revalidation through tight webhook integration. Secure login functionality is implemented with NextAuth, enabling users to authenticate securely and access your application with password reset, social login.

Starting Price: $59 one-time payment

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SaaS Starter Kit

SaaS Starter Kit is a modern, fully featured SaaS template designed to accelerate the development of Next.js applications. It incorporates a comprehensive suite of features, including subscription payments through Lemon Squeezy or Stripe, a complete authentication flow with magic email sign-in and social OAuth login, and subscription management via customer portals. The kit supports roles and permissions for fine-grained access control, and multi-tenancy allowing users to create organizations and invite team members, and a modern, SEO-optimized blog. Email workflows are streamlined using Resend and React Email, while the user interface is crafted with Shadcn and Tailwind CSS, ensuring easy customization and extension. The template is mobile-friendly, offers a fully integrated dark theme, and provides dedicated support through Discord or Reddit. Users benefit from lifetime free updates and extensive, up-to-date documentation, facilitating quick onboarding and codebase comprehension.

Starting Price: $87 one-time payment

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Volca

Volca is a comprehensive SaaS boilerplate and starter kit designed to accelerate the development and deployment of SaaS applications. It provides a monorepo that includes a high-performance static landing page, a React dashboard, and a Node.js REST API. The landing page is pre-rendered as static HTML files, ensuring quick load times and improved search engine rankings, and is built with React and TypeScript. The dashboard serves as the primary interface for users, offering features such as user registration, subscription management, and team collaboration, allowing users to create projects and invite team members. The backend API is built with Node.js and TypeScript, operating on a serverless architecture that is cost-effective, secure, and performant. Volca integrates secure and reliable authentication out of the box with AWS Cognito, supports social sign-in through providers like Apple, Google, and Facebook, and includes subscription management with Stripe.

Starting Price: $12 per month

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Flowbite

Flowbite is an open-source library of interactive UI components built on top of Tailwind CSS, designed to expedite web development by providing a comprehensive set of pre-designed elements. It offers over 56 types of components, including buttons, alerts, breadcrumbs, pagination, and navbars, as well as interactive elements like dropdowns, modals, and tooltips, which are enhanced by custom JavaScript for added interactivity. Developers can integrate Flowbite into existing Tailwind CSS projects via npm or CDN, and it supports various frameworks such as React, Vue.js, Angular, and Next.js. The library also includes a Figma design system, enabling designers to prototype and design applications before development. For those seeking advanced features, Flowbite offers a Pro version with additional components and templates. The ecosystem is further enriched by Flowbite Blocks, providing over 450 website sections and advanced UI components built with Tailwind CSS.

Starting Price: $289 one-time payment

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Parthenon

Parthenon is a comprehensive Symfony SaaS boilerplate designed to expedite the development of SaaS applications by providing a suite of pre-built modules and functionalities. It includes a robust user system encompassing sign-up, email confirmation, login, password recovery, and friend invitations. The platform integrates seamlessly with Stripe, enabling immediate acceptance of payments. An adaptable admin system, known as Athena, allows for efficient data management without extensive custom development. Parthenon supports team-based features, facilitating team creation, invitations, and ownership management. It simplifies the creation of multi-step forms, is beneficial for complex user onboarding processes, and offers AB testing capabilities to assess the impact of changes. The invoicing module supports multi-country VAT calculations, streamlining financial operations. Infrastructure setup is facilitated through Ansible configurations.

Starting Price: Free

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Best Application Development Software for Startups - Page 75

Compare the Top Application Development Software for Startups as of December 2025 - Page 75

Kakoune

Google Cloud Code

goormIDE

PaizaCloud

Keepsake

Skaffold

Early

Tips.io

AutoFlow Studio

Tempest

SvelteKit

StartFast

Gravity

NextAuth.js

Auth.js

Basejump

Nextless.js

Nextacular

SaaS UI

SaaSBold

Veloz

shadcn/ui

Fyno

Mantine

Shipixen

Next.js Boilerplates

SaaS Starter Kit

Volca

Flowbite

Parthenon

Best Application Development Software for Startups - Page 75

Compare the Top Application Development Software for Startups as of December 2025 - Page 75

Kakoune

Google Cloud Code

goormIDE

PaizaCloud

Keepsake

Skaffold

Early

Tips.io

AutoFlow Studio

Tempest

SvelteKit

StartFast

Gravity

NextAuth.js

Auth.js

Basejump

Nextless.js

Nextacular

SaaS UI

SaaSBold

Veloz

shadcn/ui

Fyno

Mantine

Shipixen

Next.js Boilerplates

SaaS Starter Kit

Volca

Flowbite

Parthenon

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