HTTP Status Codes
Developer ResourcesA plain-language reference for every HTTP status code, from 200 to 599, with quick explanations.
33 resources · Page 1 of 2
A plain-language reference for every HTTP status code, from 200 to 599, with quick explanations.
An interactive regex tester with real-time highlighting, explanation, and a library of community patterns.
An enormous index of programming cheatsheets gathered from across the web into one searchable page.
The open-source foundation's guides and checklists for building and securing software against common attacks.
A fast, offline-friendly documentation browser that aggregates API docs for hundreds of languages and tools.
A Tailwind CSS component library with interactive UI components and a helpful set of blocks and templates.
The world's most used CSS framework, providing responsive grid systems, components, and utility styles.
An enterprise-grade React UI library with a refined component set and strong design guidelines.
A modular React component library focused on accessibility, theming, and a consistent developer experience.
A popular React component library that implements Google's Material Design with a huge set of ready components.
The open-source tool that turns OpenAPI specs into interactive, self-documenting API pages.
An API marketplace where you discover, connect to, and manage thousands of third-party APIs in one place.
A community-curated GitHub repository listing thousands of free public APIs, organized by category.
A desktop API client for designing, testing, and debugging REST and GraphQL APIs with a clean UI.
A lightweight, open-source API testing tool that runs entirely in the browser with a clean workspace.
The official API for automating GitHub — repos, issues, PRs, releases, and actions — from your own scripts.
Custom mapping and location APIs with beautiful vector tiles, geocoding, routing, and navigation.
Cloud communications APIs for SMS, voice, video, and email that developers can wire into any app.
The API for OpenAI's models, including GPT, embeddings, and image generation, with function calling support.
A developer-friendly payments API with clean documentation, libraries for every language, and instant webhooks.
A browser extension that formats, validates, and syntax-highlights JSON in the browser with collapsible trees.
A browser extension that instantly reveals the technologies powering any website you visit.
An API development tool that makes it easy to send requests, inspect responses, and organize the endpoints you work with…
The easiest way to run containers locally. Docker packages your application with everything it needs so it runs the same…
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