 HaystackOpen source Python framework from deepset for building LLM applications, RAG pipelines and agents. | LLM Frameworks | Open source | 26.7k | None | 1 day ago |
 Roo CodeFormer open source AI coding agent for VS Code. The extension was shut down on 15 May 2026. | AI Coding Tools | Open source | 24.3k | None | 5 months ago |
 NeonServerless Postgres platform with autoscaling and instant branching, owned by Databricks. | Databases | Freemium | 23.2k | 5.2M | 1 year ago |
 Radix UIUnstyled, accessible React component primitives for building your own design system. | UI Libraries | Open source | 19.4k | 92M | None |
 TursoDistributed SQLite database platform built on libSQL, with databases deployable close to users. | Databases | Freemium | 17.3k | 4.1M | 1 year ago |
 Bolt.newAI app builder that generates and runs full-stack web apps in the browser from a prompt. | No-Code | Freemium | 16.6k | None | None |
 VercelCloud platform for deploying web apps and frameworks like Next.js, with preview URLs and serverless functions. | Hosting | Freemium | 16.4k | 5.3M | 2 months ago |
 SuperTokensOpen source authentication platform, free to self-host with no limits, or managed cloud from $0.02 per MAU. | Auth | Freemium | 15.3k | 76k | 1 month ago |
 KyselyType-safe SQL query builder for TypeScript. It is not a full ORM. | ORM | Open source | 14.3k | 23M | 1 month ago |
 OryOpen source identity and access management platform, self-hosted or as a managed cloud service. | Auth | Freemium | 13.9k | 205k | 7 months ago |
 ConvexReactive backend platform with a TypeScript database, server functions and real-time sync built in. | Databases | Freemium | 12.7k | 2M | None |
 smol-developerEarly open source, single-file AI agent for scaffolding a small application from a prompt. | AI Coding Tools | Open source | 12.2k | None | None |
 OpenAIAI research company behind ChatGPT and the GPT model family, accessed through apps and an API. | AI Platforms & APIs | Freemium | 11.2k | 51M | 2 days ago |
 OpenAI APIPay-per-token API access to OpenAI's GPT models for building AI into your own applications. | AI Platforms & APIs | Pay as you go | 11.2k | 51M | 2 days ago |
 LagoOpen source billing and usage-based pricing platform, deployable self-hosted or as a managed cloud service. | Payments | Freemium | 10.7k | None | 1 week ago |
 LuciaOpen source authentication library for JavaScript, deprecated in March 2025. | Auth | Open source | 10.5k | 458k | None |
 PolarMerchant-of-record billing platform for developers, built for usage-based and AI-era pricing. | Payments | Freemium | 10.4k | 382k | 1 week ago |
 AWS AmplifyAWS's platform for building and hosting full-stack web and mobile apps, priced pay-as-you-go. | Hosting | Pay as you go | 9.6k | 2.2M | 3 days ago |
 MikroORMTypeScript ORM for Node.js built on Data Mapper, Unit of Work and Identity Map patterns. | ORM | Open source | 9.3k | 1.3M | 1 week ago |
 Cloudflare WorkersServerless functions that run on Cloudflare's global network, billed by CPU time. | Hosting | Freemium | 9k | 30M | 1 day ago |
 StarCoderOpen source code-generation model from the BigCode project, trained on 80+ programming languages. | AI Models | Open source | 7.5k | None | None |
 Gemma 4Google DeepMind's current generation of lightweight, open-weight language models. | AI Models | Open source | 5.8k | None | 4 months ago |
 FirebaseGoogle's backend-as-a-service platform for mobile and web apps: database, auth, hosting and functions. | Databases | Freemium | 5.2k | 12M | 1 week ago |
 Cloudflare PagesJAMstack hosting platform with Git integration and unlimited bandwidth, deployed on Cloudflare's edge network. | Hosting | Freemium | 4.6k | 30M | 1 day ago |
 StripePayment processing and financial infrastructure APIs, priced pay as you go per transaction. | Payments | Pay as you go | 4.5k | 27M | 2 weeks ago |
 Stripe BillingStripe's subscription and recurring billing product, with usage-based billing via Metronome. | Payments | Pay as you go | 4.5k | 27M | 2 weeks ago |
 SendGridTwilio's email API and delivery platform for transactional and marketing email. | Email | Freemium | 3.1k | 5.7M | 1 year ago |
 Auth0Identity and access management platform for authentication and single sign-on, owned by Okta. | Auth | Freemium | 2.3k | 1.1M | 3 days ago |
 AnthropicAI research company that makes the Claude models, the Claude apps and the Claude API. | AI Platforms & APIs | Pay as you go | 2.1k | 54M | 1 day ago |
 Anthropic ClaudeAnthropic's Claude model family, accessed through the Claude apps, the Claude API, or major clouds. | AI Models | Pay as you go | 2.1k | 54M | 1 day ago |
 NetlifyWeb platform for deploying sites and apps from Git, the CLI or AI agents, with functions, storage and Postgres. | Hosting | Freemium | 1.9k | 476k | 3 days ago |
 ClerkHosted authentication and user management with prebuilt sign-in, profile and organization components. | Auth | Freemium | 1.8k | 3.1M | 1 day ago |
 Fly.ioPlatform for running apps and databases close to users globally, billed by the second for compute used. | Hosting | Pay as you go | 1.7k | None | 2 days ago |
 PlanetScaleManaged database platform built on Vitess, now offering both MySQL and Postgres. | Databases | Pay as you go | 1.2k | 493k | 3 weeks ago |
 ResendEmail API for developers to send transactional and marketing email, with React-based templates. | Email | Freemium | 966 | 15M | 2 days ago |
 HerokuPlatform-as-a-service for deploying apps as dynos, spanning classic Cedar dynos and newer Fir dynos. | Hosting | Paid | 888 | 16.3k | 3 days ago |
 RailwayUsage-billed cloud platform for deploying apps, databases and cron jobs from GitHub or Docker images. | Hosting | Pay as you go | 621 | 415k | 1 day ago |
 ReplicateRun and deploy machine learning models in the cloud through a simple API, billed by the second. | AI Platforms & APIs | Pay as you go | 598 | 693k | 11 months ago |
 WorkOSEnterprise-readiness platform adding SSO, directory sync, audit logs and user management to an app. | Auth | Freemium | 224 | 4M | 2 weeks ago |
 KindeAuthentication and user management platform with a generous free tier and built-in billing tools. | Auth | Freemium | 184 | 57.8k | 1 week ago |
 StytchAuthentication platform with passwordless, fraud prevention and B2B SSO/SCIM support, priced pay-as-you-go. | Auth | Freemium | 116 | 333k | 3 months ago |
 AdaloNo-code builder for native iOS, Android and web apps, with a built-in database and app store publishing. | No-Code | Freemium | None | None | None |
 AdyenGlobal payments platform for large businesses, with transaction-based pricing and no monthly fees. | Payments | Pay as you go | None | 329k | None |
 AirtableSpreadsheet-database hybrid for organizing work, with automations, views and app-building tools. | No-Code | Freemium | None | None | None |
 Amazon CodeWhispererAWS AI coding assistant, renamed to Amazon Q Developer. | AI Coding Tools | Freemium | None | None | None |
 Amazon Q DeveloperAWS's AI coding and cloud assistant, successor to Amazon CodeWhisperer, with a free and $19 a month Pro tier. | AI Coding Tools | Freemium | None | None | None |
 Amazon SESAmazon Web Services email service billed by usage, from $0.10 per 1,000 emails. | Email | Pay as you go | None | None | None |
| AAppGyverNo-code web and mobile app builder, bought by SAP in 2021, renamed SAP Build Apps and deprecated in 2026. | No-Code | Paid | None | None | None |
 BraintreePayPal-owned payment platform for cards, PayPal, Venmo and digital wallets, with a single integration. | Payments | Pay as you go | None | 231k | None |
 BrevoEmail, SMS and CRM platform, formerly Sendinblue, with a transactional email API and SMTP. | Email | Freemium | None | None | None |