SLSA
Framework for software supply-chain integrity
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 1585–1632.
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Smarter Every Day
Observe engineering and science through experiments and filming.
Smitten Kitchen
Recipes and baking ideas developed around a small home kitchen.
Snagit
Snagit focuses on capturing and annotating screenshots.
Snappa
A graphic design tool focused on social images, blog covers, and ads.
Snyk
Snyk offers dependency and code security scanning for teams checking known risks in dependencies.
Sodaphonic
Browser tools for recording, editing, effects, and audio conversion.
Soil and Water Conservation Society
Explore soil, water, and resource-conservation research.
Solar and Heliospheric Observatory
Follow solar observations from the SOHO mission.
Solar Dynamics Observatory
Explore imagery and mission information about the solar atmosphere.
Solar Icons
Solar Icons is a catalog and framework-package project maintained by saoudi-h, using Solar icons by 480 Design.
SomaFM
SomaFM focuses on genre-based internet radio channels.
SonarQube
SonarQube offers code quality and security analysis for teams tracking duplication and defect risks in a project.
Sonic Pi
A code-based environment for composing and performing music.
Sonic Visualiser
Visualization, analysis, and annotation tools for musical recordings.
SOOT SPIRAL
Explore SOOT's visual world by clicking through images or entering a more specific search.
SOPS
Encrypted values with readable configuration structure
Soundation
Soundation focuses on online beat making and multitrack music.
SoundBible
SoundBible focuses on an index of short effects and ambient sounds.
SoundCloud
SoundCloud focuses on artist-uploaded tracks and music community activity.
Soundslice
Interactive sheet music and tablature synchronized with video.
Soundtrap
Soundtrap focuses on collaborative online recording and song editing.
Sourcegraph
Codebase context for developers and agents
Sourcery
AI feedback during code review
Space Telescope Live
See current telescope targets and observing schedules.
Space Telescope Science Institute
Find space telescope missions and science resources.
Space Weather Prediction Center
Explore observational indicators of solar and geomagnetic activity.
SpaceWeather
Follow solar activity and sky-phenomenon reports.
Spark Java
Minimal routing for Java web services
SPDX
Standardized software-information exchange
Speakeasy
Speakeasy offers API SDK generation and maintenance tools for teams maintaining API clients in multiple languages.
Spectre.css
Spectre.css provides CSS styling for interface components.
Sphinx
Technical manuals with cross-referenced source documents
SpiceDB
Relationship-based application permission storage
Splice
A sound library for finding samples, loops, presets, and one-shot audio.
Spline
A browser-based design platform for collaboratively creating, animating, and publishing interactive 3D and 2D experiences.
Spring
The Spring Boot guide states the app to build and needed tools. Useful when you need to find a first Spring Boot project guide.
SQLAlchemy
The Unified Tutorial puts Core and ORM in one learning path. Useful when you need to compare two entry points for Python database queries.
SQLBolt
Learn SQL through short lessons and interactive browser exercises, with table results shown after each query.
SQLite
SQLite offers an embedded SQL database and technical documentation for teams storing structured data in a local application.
Squaredle
A daily word-search puzzle built around connected grid letters.
Squoosh
Compress images in your browser and compare quality before saving.
SSL Labs
SSL Labs offers public website TLS configuration testing for teams checking certificates and encryption settings.
SST
Application and cloud resources configured in code
StackBlitz
Web development in the browser
stagewise
An open-source IDE that brings coding agents, multiple workspaces, a browser, and a terminal into one desktop environment.
Standard Ebooks
Browse edited public-domain ebooks and their bibliographic pages.
Standard Notes
Standard Notes focuses on encrypted notes and cross-device syncing.