Puppeteer
Getting started covers installation and launching a browser. Useful when you need to look up how a script opens a page and reads content.
All sites
Browse hand-picked design inspiration, development tools, and research resources. Read an introduction before visiting the official site.
1976 sites, sorted by name. Showing 1393–1440.
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Pure CSS
Pure CSS provides lightweight responsive CSS modules.
PureScript
Pure functional programming for JavaScript
PuzzGrid
A grouping puzzle based on finding connections between words.
Puzzmo
A shared destination for daily word and logic puzzles.
Pyramid
Composable Python web applications
Python
The tutorial Introduction uses examples for arithmetic and strings. Useful when you need to revisit Python values and expressions.
Qase
Qase offers test case and quality workflow management for teams tracking manual and automated test results.
Qdrant
Qdrant offers a vector search engine and API for teams finding related documents from embeddings.
Qodo
Code-quality review for agent workflows
QOwnNotes
A note-taking application organized around local Markdown files.
Quanta Magazine
Read in-depth reporting on mathematics and basic science.
Quarkus
Creating your first application begins with prerequisites and project creation. Useful when you need to find the steps for starting a Quarkus project.
Quartz
Linked notes published as a website
QuestDB
QuestDB offers a time-series SQL database for teams querying continuously ingested event streams.
quicktype
Generate types and parsing code for TypeScript and other languages from sample JSON.
Qwik
Getting Started Qwikly moves from app creation to a route example. Useful when you need to follow the structure of an initial route.
R Project
An Introduction to R begins with the environment and data objects. Useful when you need to review R vectors and basic data handling.
Racket
Language-oriented and functional programming
Radio Garden
Spin the globe to discover and listen to live radio around the world.
Radiooooo
Radiooooo focuses on exploring music by decade and country.
Radix UI
Radix UI provides React interaction primitives that you can style yourself.
Railway
Railway offers an application and database deployment platform for teams quickly creating a service test environment.
Raindrop.io
A bookmark manager for articles, media, and visual inspiration.
Rancher
Unified management of Kubernetes clusters
Ranking Digital Rights
Compare technology company digital rights policy rankings.
Ravelry
A community and database for knitting patterns, yarn, and project organization.
Ray.so
A focused web tool for turning a code snippet into a shareable image.
Raycast
A keyboard-first launcher that brings productivity tools and extensions into one command surface.
re3data
Find research-data repositories suited to your subject.
React
Your First Component shows how components combine markup and JavaScript. Useful when you need to break a screen section into a reusable component.
React Bits
An open-source resource for React components, text effects, and backgrounds.
React Doctor
A CLI that uses deterministic static analysis to find risks in React code.
React Native
Native application interfaces described with React
React Router
Installation takes readers from package setup to declarative routing. Useful when you need to check the correct guide before defining a first route.
React Scan
A browser tool that automatically highlights React components behind performance issues.
React95
React95 provides React components inspired by Windows 95.
Reactome
Interpret molecular research through biological pathways.
Read the Docs
Technical-documentation builds from repositories
Readeck
A content-saving tool for articles, images, and videos.
ReadMe
ReadMe offers an interactive API documentation platform for teams organizing endpoint guides for external developers.
RealClimate
Read scientific discussions from climate researchers.
RealityScan
A photogrammetry tool for reconstructing detailed 3D models from images and laser scans.
Realtime Colors
Realtime Colors focuses on live previews of text and background colors.
REAPER
REAPER focuses on flexible multitrack recording and editing.
Reason
Alternative syntax for the OCaml type system
Rebelle
Painting software simulating watercolor diffusion, drying, and physical color mixing.
Rebrand
A curated gallery of rebrands and visual identities.