Freemium
AI Coding Assistants · AI for Developers
Cloud IDE with AI agents for building and deploying apps quickly.
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AI Coding Assistants · AI for Developers
Cloud IDE with AI agents for building and deploying apps quickly.
Tunneling & Debugging · API Tools
Open-source HTTP interception: modify requests, mock, and debug in browser.
Email · API Tools
Developer-first email API with React Email templates.
Payments · API Tools
Subscription infrastructure for mobile apps — cross-platform in-app purchases, entitlements and analytics.
References · Documentation & Learning
Official repository of Internet RFC specifications.
Web Analytics · Monitoring & Observability
Google's validator for structured data — check JSON-LD eligibility for snippets, breadcrumbs and products.
CLI Tools · Development Environment
Extremely fast, recursive line-oriented regex search tool (rg).
Animation · Frontend
Real-time interactive design and animation tool — state-machine animations that run tiny runtimes everywhere.
Courses & Tutorials · Documentation & Learning
Community-driven developer roadmaps, guides and skill assessments.
Error Tracking · Monitoring & Observability
Real-time error tracking and debugging for many platforms.
Build & Lint · Frontend
Module bundler optimized for libraries and tree-shaking.
AI Coding Assistants · AI for Developers
Community-driven AI dev agent for VS Code with multiple modes.
Build & Lint · Frontend
Fast Rust-based webpack-compatible bundler.
Programming Languages
Official Ruby language website with documentation and news.
Frameworks · Backend
Full-stack Ruby framework following convention over configuration.
CLI Tools · Development Environment
An extremely fast Python linter and formatter, written in Rust.
Programming Languages
Official Rust website: documentation, book, crates and tooling.
Full-stack Boilerplates · Project Starters
Production-grade Django + React boilerplate — subscriptions, teams, Celery and a admin-rich starter you own.
Headless CMS · Backend
Composable headless CMS with a real-time editing studio.
Ecosystem · CSS Tools
The mature CSS extension language with variables and nesting.
Programming Languages
Official Scala language site with documentation and downloads.
API Documentation · API Tools
Beautiful OpenAPI docs and modern API client, open source.
Package Managers · Development Environment
Command-line installer for Windows focused on developer tools.
Web Scraping · Data & Analytics
Python's industrial-strength crawling framework — spiders, middlewares, throttling and pipelines built in.