Smtp4dev

Advanced fake SMTP server for realistic email testing

Snapify

Self-hostable screen recording and sharing platform

Snowplow

Turn event-level data into governed, AI‑ready customer insights

Socioboard

Unified platform to schedule, analyze, and collaborate on social media.

solidtime

Modern time-tracking app for freelancers and agencies

Solidus

Full‑featured Ruby on Rails e‑commerce platform with complete store control

SonarQube

Continuous code inspection platform with quality gates and clean code enforcement

Sonic

Fast, lightweight, schema-less search backend returning IDs in microseconds

SOPS

Encrypted file editor supporting multiple formats and key providers

Sourcery

Instant AI-powered code reviews for faster, higher-quality development

Spacebar

Self‑hosted, Discord‑compatible chat, voice, and video platform.

Space Cloud

Instant realtime APIs for any database on Kubernetes

Spacedrive

Unified, secure file explorer across devices and clouds

Speedracer

Run, trace, and report JavaScript performance with Chrome

Sphinx

Create intelligent, beautiful documentation from reStructuredText with ease

Spinnaker

Multi-cloud continuous delivery platform for fast, safe software releases.

Split

Rack‑based A/B testing framework for Rails, Sinatra, and more

Spree Commerce

Fully customizable, API‑first eCommerce platform for any business

SPX

Lightweight self‑hosted PHP profiler with instant UI

SRS

High-efficiency real-time video server supporting all major streaming protocols.

SSOReady

Add SAML and SCIM to any app in minutes

Stack Auth

Fast, developer-friendly authentication with built-in dashboard and RBAC

stagewise

AI-powered frontend coding agent that edits production web apps

Starlight

Create beautiful, accessible, high-performance docs sites with Astro