Alternatives
Find free and open source alternatives to popular proprietary software.
Name (A–Z)
Bugsnag
Monitoring & Observability
Free
1 open source alternative
Buildbox
Game Development Platforms
1 open source alternative
Burp Suite
Vulnerability Scanning
1 open source alternative
CCleaner
Automation
$44.95
one-time
1 open source alternative
CONTENTdm
Photo & Video Management
1 open source alternative
Cacher
Personal Knowledge Management (PKM)
1 open source alternative
Caddy
Control Panels
Free
1 open source alternative
Caffeine
AI Development Platforms
$5
month
1 open source alternative
CalendarBridge
Appointment Scheduling
1 open source alternative
Calendly
Scheduling & Event Management
$10
month
3 open source alternatives
CamelCamelCamel
Personal Tracking Apps
Free
1 open source alternative
Campaign Monitor
Email Marketing & Newsletters
1 open source alternative
Camtasia
Screen Recording
$39.00
year
1 open source alternative
Canny
Collaboration & Feedback
$79
month
4 open source alternatives
Canvas
Course Creation Platforms
2 open source alternatives
CapCut
Photo & Video Editors
Free
1 open source alternative
Capture One
Photo Editors
2 open source alternatives
Carbon
Code Snippet Stylers
Free
2 open source alternatives
Casetext
Legal AI Platforms
1 open source alternative
Cerberus FTP Server
File Management
$1,599
year
1 open source alternative
Cerner
ERP Systems
$25
month
1 open source alternative
Challonge
Event Ticketing & Management
$6.99
month
1 open source alternative
ChangeTower
Uptime Monitoring
1 open source alternative
ChargePoint
IoT Databases
1 open source alternative
Chargebee
Finance & Accounting
$7,188
year
6 open source alternatives
Charles
API Development & Testing
$30
one-time
1 open source alternative
ChatGPT
AI Interaction & Interfaces
Free
13 open source alternatives
Chess.com
Community Building Platforms
$60
year
1 open source alternative
Chromatic
Testing & Quality Assurance
$179
month
2 open source alternatives
Chromecast
Media Servers
1 open source alternative
Open Source Software.io
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