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Transactional email delivery service with an API, SMTP and templates
146 tools in our directory are marked as best for Startups, from 24 sections: Hosting & Deploy (14), Freelance & Business (13), Mobile Development (13), AI Models & APIs (12) and 20 more sections.

Transactional email delivery service with an API, SMTP and templates

TypeScript ORM with a managed Postgres database and app hosting

Free team chat with channels, threads, guests and video calls

Accounting software and bookkeeping services for startups


Corporate cards, expense management and bill pay for finance teams

Document database with built-in indexing and vector search


Performant React form library with easy validation

Build native Android and iOS apps with React and JavaScript

Cross-platform UI toolkit for React Native apps

Material Design components for React Native apps


Browser-based AI app builder with hosting, databases and an agent


Business checking, corporate cards and expense tools for startups

Full-stack Ruby framework for database-backed web applications


Open source cookieless analytics with session replay and funnels


European PaaS with Git deploys, autoscaling and databases

Deploy APIs, scheduled tasks and event apps to AWS Lambda

Copy-paste UI components you own and can customize in code

Build full-stack apps on your AWS account from one config file

SDKs and APIs for in-app chat, activity feeds and video



Open source Postgres backend with auth, APIs, storage and realtime

Fast AI code autocomplete with a 1 million token context window

Open source user authentication with prebuilt login screens

Utility-first CSS framework for building designs directly in markup

Distributed SQL database for transactions and vector search

Headless rich text editor with a free open source core

Cloud platform for running open-source AI models via API

Open source React components for charts and dashboards

Typesafe APIs shared between a TypeScript server and client


Open source search engine with typo tolerance and vector search


Free open-source SVG illustrations with an adjustable main colour

Figma UI kits and a React component library for designers

File uploads for developers with server-side auth checks

Serverless Redis, vector and messaging services with pay-as-you-go

Compliance automation for SOC 2, ISO 27001, HIPAA and more

TypeScript toolkit for adding AI text and chat features to apps

Open source full-stack framework for React, Node.js and Prisma

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