AI Tools Directory

Hoppscotch

Development

Open-source API playground that runs in the browser with collections and realtime.

Open-source library for throwaway containers in integration tests across languages.

API platform that generates SDKs, docs and a type-safe server from an API definition.

Appsmith

Development

Open-source internal app builder with a drag-and-drop UI and JS anywhere.

Transactional email API focused on fast, reliable delivery rather than newsletters.

Localization suite (Phrase TMS + Strings) for software, docs and marketing copy.

SMTP relay for apps and websites that need better deliverability than raw PHP mail.

SendGrid

Development

Twilio email API and marketing campaigns for transactional and bulk mail.

Postman VS Code extension for sending requests and running collections inside the editor.

Microsoft library for reliable end-to-end tests across Chromium, Firefox and WebKit.

AWS coding assistant for IDEs, the CLI and transforming Java applications.

CodeSandbox

AI Coding

Cloud development environment for web apps, prototypes and pull-request previews.

Ultra-fast LLM inference platform with a public playground and API.

Free, open source, community-focused unit testing tool for the .NET Framework.

Netlify

Development

Composable web platform for JAMstack sites, functions, forms and previews.

Localization platform for product strings, over-the-air updates and translation memory.

Java testing framework inspired by JUnit and NUnit with flexible configuration.

SDK and Terraform generation from OpenAPI with quality bars for public APIs.