Codemagic
Automated multi-platform mobile builds
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 385–432.
Narrow your browse by category
Codenames
An online word-clue game for teams of friends.
Coder
Self-managed development workspaces
CodeRabbit
Automated PR change analysis
Collletttivo
Collletttivo is a type collective that shares open-source fonts.
Color Hunt
Color Hunt focuses on community-curated four-color palettes.
Color Lisa
Color Lisa focuses on palettes inspired by artworks.
Color.review
A quick contrast checker for comparing foreground and background colors against common accessibility thresholds.
ColorHexa
ColorHexa focuses on color-code information and color relationships.
Colormind
Colormind focuses on algorithmically generated palettes.
ColorSpace
ColorSpace focuses on palette variations derived from a base color.
Component Gallery
A reference site for browsing and comparing design-system components.
Concepts
An expandable sketching canvas for notes, plans, and design ideas.
Concord Consortium
Find digital science learning tools and research projects.
Concourse
Traceable pipelines of resources and jobs
Concrete CMS
Website management with in-page editing
Constitute
Compare constitutional texts from different countries.
Contao
Content sites assembled from modules and layouts
Contexto
A word-guessing game using semantic closeness as feedback.
ConvertCSV
ConvertCSV offers CSV and text format conversion for teams preparing exported tabular data.
Cookiecutter
Parameterized project templates
Coolors
Coolors focuses on quickly generating and adjusting color palettes.
Copernicus Atmosphere
Explore air pollution, emissions, and greenhouse-gas information.
Copernicus Climate Change Service
Read climate-monitoring highlights and product explanations.
Copernicus Land Monitoring
Explore land cover, vegetation, and surface changes.
Copernicus Marine
Find ocean products and reports on marine conditions.
Copier
Generation and updates from project templates
Copy Me That
A recipe collection tool connecting editing, planning, and shopping.
CORE
Search open access papers and repository content.
Cosmos
A visual place for discovering and collecting references.
coss ui
coss ui provides a component catalog built on Base UI.
Coursera
Find professional and academic online courses.
Craft
Craft focuses on a polished space for documents and notes.
Crash Course
Watch introductory science, history, and humanities series.
Creative Boom
Creative Boom focuses on illustration, photography, and design coverage.
Cronitor
Cronitor offers scheduled job and endpoint monitoring for teams finding background jobs that missed a run.
Crontab.guru
Enter a cron expression to understand its schedule and field syntax.
Crop Trust
Understand crop-diversity conservation and genebanks.
Crossplane
Platform resources managed through control-plane APIs
Crossref
Check DOI, publication, and citation metadata.
CryptPad
A collaborative office suite for working together on documents and data.
Crystal
The Language Introduction collects basic syntax and idioms. Useful when you need to find a first Crystal program and its syntax.
CSS Design Awards
CSS Design Awards focuses on award-winning website design and judging.
CSS Gradient
Choose gradient colors and an angle, compare the live preview, and copy the matching CSS background settings.
CSVJSON
CSVJSON offers conversion between CSV and JSON for teams turning spreadsheet data into program input.
cubic-bezier.com
Drag control points, compare easing previews, and read the resulting cubic-bezier() value for CSS motion.
Curated Design
Web design references drawn from live websites.
curlconverter
Turn curl commands into request code for Python, JavaScript, and other languages.