Alternatives
Find free and open source alternatives to popular proprietary software.
Name (A–Z)
Skyflow
Encrypted Storage
1 open source alternative
Skype
Collaboration & Communication
1 open source alternative
Slack
Collaboration & Communication
$7.25
month
20 open source alternatives
Sleuth
BI Platforms
Free
1 open source alternative
Slido
Survey Tools
€15
month
2 open source alternatives
Smallpdf
Document Management Systems
1 open source alternative
SmartDraw
Whiteboarding
$8.95
month
1 open source alternative
SmartGo
Game Development Platforms
$30
year
1 open source alternative
SmugMug
Photo & Video Management
$20.00
month
5 open source alternatives
Snagit
Screenshot Utilities
$39
year
1 open source alternative
Snipaste
Screen Capture & Recording
$8.99
1 open source alternative
SnippetsLab
Code Editors
Free
1 open source alternative
Snipping Tool
Screenshot Utilities
Free
1 open source alternative
Snowflake
Data Warehousing & Processing
1 open source alternative
Socrata
Data Visualization
1 open source alternative
Solace PubSub+
Message Queues
Free
1 open source alternative
SolarWinds
Monitoring & Observability
$8
month
2 open source alternatives
SolarWinds IP Address Manager
Infrastructure Monitoring
$8
month
1 open source alternative
SolarWinds Network Performance Monitor
Infrastructure Monitoring
$8
month
1 open source alternative
SolarWinds VoIP & Network Quality Manager
Infrastructure Monitoring
$8
month
1 open source alternative
Sonatype Nexus Repository
Container Orchestration
$1,620
year
1 open source alternative
Sonos
Media Servers
1 open source alternative
Sortly
Asset & Inventory Management
$49
month
2 open source alternatives
SoulseekQt
Media Servers
Free
1 open source alternative
Sound Forge
Audio Editors
1 open source alternative
SoundSource
Media & Streaming
1 open source alternative
Sourcetree
Version Control & Collaboration
Free
2 open source alternatives
Spacelift
Infrastructure as Code (IaC)
$20,000
year
1 open source alternative
Spark Mail
Email Clients
$8.25
month
2 open source alternatives
Speedtest by Ookla
Infrastructure Monitoring
3 open source alternatives
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