Alternatives
Find free and open source alternatives to popular proprietary software.
Name (A–Z)
Request Inspector
Webhook Platforms
Free
1 open source alternative
RescueTime
Time & Task Management
$7
month
2 open source alternatives
Resend
Email & Communication
$20
month
2 open source alternatives
Resource Guru
Appointment Scheduling
$5
month
1 open source alternative
Retool
Integration Platforms
$10
month
8 open source alternatives
Rewind.ai
AI Development Platforms
$5
month
2 open source alternatives
Ring
Encrypted Communication
$4.99
month
1 open source alternative
RingCentral MVP
Customer Communication Platforms
1 open source alternative
Roam Research
Notes & Knowledge
3 open source alternatives
Roblox
Game Development Platforms
Free
1 open source alternative
Rocket Money
Personal Finance Management
$7
month
1 open source alternative
Roon
Media Servers
7 open source alternatives
Run:ai
GPU & Compute Platforms
1 open source alternative
Runway
Video Editors
$12
month
1 open source alternative
S3 Browser
Storage Solutions
$59.99
one-time
6 open source alternatives
SAP Business One
ERP Systems
3 open source alternatives
SAP Business Technology Platform
Integration Platforms
Free
2 open source alternatives
SAP Concur
Expense Management
$7
one-time
1 open source alternative
SAP Transportation Management
Logistics & Supply Chain
1 open source alternative
SAS
Development Environments
1 open source alternative
SHAREit
File Management
1 open source alternative
SPSS
Development Environments
1 open source alternative
Salesforce
Sales & CRM
Free
9 open source alternatives
Salesforce Agentforce
AI Agent Platforms
1 open source alternative
Salesforce Platform
Low-Code/No-Code
1 open source alternative
Salesforce Sales Cloud
CRM Systems
1 open source alternative
Salesforce Service Cloud
Helpdesk Software
1 open source alternative
Samsung SmartThings
Workflow Automation
5 open source alternatives
Sanity
Content Management Systems (CMS)
$15
month
4 open source alternatives
Sched
Event Ticketing & Management
Free
2 open source alternatives
Open Source Software.io
Join our newsletter to get shiny new open source software delivered to your inbox. Unsubscribe anytime.