Joplin
Productivity ToolsAn open-source note-taking app with Markdown support, end-to-end encrypted sync, and a focus on privacy.
50 resources · Page 1 of 3
An open-source note-taking app with Markdown support, end-to-end encrypted sync, and a focus on privacy.
An open-source knowledge base built on local Markdown files with outliner editing and a powerful graph view.
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.
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.
An open-source browser extension that automatically skips sponsor segments and other non-content parts of YouTube videos…
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 efficient, open-source ad blocker that removes ads and trackers with minimal impact on page load speed.
A free, open-source vector graphics editor for creating scalable illustrations, icons, and logos.
A free, open-source painting program built specifically for digital artists and illustrators.
A free, open-source image editor with a full toolkit for retouching, compositing, and photo manipulation.
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