Alternatives
Find free and open source alternatives to popular proprietary software.
Name (A–Z)
CodePen
Development Environments
$8
month
1 open source alternative
CodeRunner
Development Environments
$22.99
one-time
1 open source alternative
CodeSnap
Code Snippet Stylers
$3
month
1 open source alternative
Codeanywhere
Development Environments
$9.60
month
1 open source alternative
Coinbase Commerce
Payment Infrastructure
Free
3 open source alternatives
Coinbase Wallet
Web3 Platforms
$0.005
1 open source alternative
Collectorz
Personal Tracking Apps
1 open source alternative
Comet
Machine Learning Infrastructure
$19
month
1 open source alternative
ComplyAdvantage
Financial Fraud Detection
$99
month
1 open source alternative
Confluence
Collaboration & Communication
$5.42
month
17 open source alternatives
Constant Contact
Email Marketing & Newsletters
$12
month
2 open source alternatives
Construct
Game Development Platforms
1 open source alternative
Contentful
Content Management Systems (CMS)
$300
month
12 open source alternatives
ConvertKit
Email Marketing & Newsletters
$33
month
1 open source alternative
Convertio
File Management
$6.99
month
1 open source alternative
CopyQ
Workspace Organizers
Free
1 open source alternative
Corel Painter
Photo Editors
1 open source alternative
CorelDRAW
Online Design
1 open source alternative
Coveo
Search Engines
1 open source alternative
Craft CMS
Traditional & Flat-File CMS
$279
one-time
3 open source alternatives
Crayon
AI Agent Platforms
1 open source alternative
Credo AI
Compliance Automation
1 open source alternative
Crisp
Live Chat & Messaging
$45
month
1 open source alternative
Cron-Job.org
Job Scheduling
Free
1 open source alternative
Cronitor
Uptime Monitoring
$2
month
1 open source alternative
Crowdin
Project & Work Management
$50
month
4 open source alternatives
Crucible
Development Environments
1 open source alternative
Cryptohopper
Trading Bots
2 open source alternatives
Cubik Studio
Game Development Platforms
1 open source alternative
Cursor
AI Assisted Coding
$20
month
3 open source alternatives
Open Source Software.io
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