Apache-2.0 — independent software & tools
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sceptre
Build better AWS infrastructure
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schema-evolution-manager
Manage postgresql database schema migrations
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scnlib
Scanf for modern C++
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scorecard
Security health metrics for Open Source
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scour
SVG file scrubber
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scrcpy
Display and control your Android device
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scriptisto
Language-agnostic "shebang interpreter" to write scripts in compiled languages
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scw
Command-line Interface for Scaleway
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seaweedfs
Fast distributed storage system
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secretspec
Declarative secrets management tool
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seexpr
Embeddable expression evaluation engine
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selenium-server
Browser automation for testing purposes
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semtag
Semantic tagging script for git
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sentencepiece
Unsupervised text tokenizer and detokenizer
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service-weaver
Programming framework for writing and deploying cloud applications
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setweblocthumb
Assigns custom icons to webloc files
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sgr
Command-line client for Splitgraph, a version control system for data
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shaderc
Collection of tools, libraries, and tests for Vulkan shader compilation
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sheenbidi
Fast and stable implementation of the Unicode Bidirectional Algorithm
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shellshare
Live Terminal Broadcast
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shibboleth-sp
Shibboleth 2 Service Provider daemon
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shimmy
Small local inference server with OpenAI-compatible GGUF endpoints
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shunit2
Unit testing framework for Bourne-based shell scripts
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shuttle-cli
CLI for handling shared build and deploy tools between many projects
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sigstore
Codesigning tool for Python packages
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simdjson
SIMD-accelerated C++ JSON parser
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simg2img
Tool to convert Android sparse images to raw images and back
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sjk
Swiss Java Knife
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skaffold
Easy and Repeatable Kubernetes Development
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skeema
Declarative pure-SQL schema management for MySQL and MariaDB
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skopeo
Work with remote images registries
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sloth-cli
Prometheus SLO generator
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slowhttptest
Simulates application layer denial of service attacks
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slsa-verifier
Verify provenance from SLSA compliant builders
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snappystream
C++ snappy stream realization (compatible with snappy)
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snow
Whitespace steganography: coded messages using whitespace
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snowflake-cli
CLI for snowflake
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snyk-agent-scan
Constrain, log and scan your MCP connections for security vulnerabilities
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snyk-cli
Scans and monitors projects for security vulnerabilities
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socket_vmnet
Daemon to provide vmnet.framework support for rootless QEMU
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socktainer
Docker-compatible REST API on top of Apple container
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solana
Web-Scale Blockchain for decentralized apps and marketplaces
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solr
Enterprise search platform from the Apache Lucene project
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sonar-completion
Bash completion for Sonar
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sonobuoy
Kubernetes component that generates reports on cluster conformance
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soplex
Optimization package for solving linear programming problems (LPs)
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source-to-image
Tool for building source and injecting into docker images
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sparkey
Constant key-value store, best for frequent read/infrequent write uses
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speech
On-device speech toolkit for Apple Silicon: ASR, TTS, VAD, diarization
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speedbump
TCP proxy for simulating variable, yet predictable network latency
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speedtest-cli
Command-line interface for https://speedtest.net bandwidth tests
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spicedb
Open Source, Google Zanzibar-inspired database
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spiffe-helper
Tool that can be used to retrieve and manage SVIDs on behalf of a workload
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spirv-tools
API and commands for processing SPIR-V modules
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spoofdpi
Simple and fast anti-censorship tool written in Go
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spring-loaded
Java agent to enable class reloading in a running JVM
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sqlfmt
SQL formatter with width-aware output
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sqlite-utils
CLI utility for manipulating SQLite databases
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sqruff
Fast SQL formatter/linter
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sqsmover
AWS SQS Message mover