Alternatives
Find free and open source alternatives to popular proprietary software.
Name (A–Z)
Feedity
News Aggregators
1 open source alternative
Feedly Threat Intelligence
Threat Detection & Response
10 open source alternatives
FetchRSS
News Aggregators
$4.95
month
2 open source alternatives
Fiddler
Testing & Quality Assurance
$10
month
1 open source alternative
FigJam
Whiteboarding
$3
month
1 open source alternative
Figma
Design & Prototyping
$3
month
8 open source alternatives
File Explorer
File Management
1 open source alternative
FileCloud
File Management
$7
year
1 open source alternative
FileRun
File Management
10
year
2 open source alternatives
Final Cut Pro
Photo & Video Editors
$299.99
one-time
3 open source alternatives
Finder Relays, Inc.
Internet of Things (IoT)
1 open source alternative
Fing
Infrastructure Monitoring
$7.99
month
1 open source alternative
Firebase
Frameworks & Platforms
$9.37
month
7 open source alternatives
Firebase Authentication
Authentication & SSO
Free
2 open source alternatives
Firebase Realtime Database
NoSQL & Document Databases
$1
1 open source alternative
Fireflies.ai
Note-Taking
$10
month
3 open source alternatives
Firefox Relay
Secure Email Providers
Free
2 open source alternatives
Firefox Send
Secure Document Sharing
1 open source alternative
Fiserv
Financial Risk Management
1 open source alternative
Fivetran
Data Engineering & Integration
$5
month
2 open source alternatives
Flickr
Photo & Video Management
3 open source alternatives
Flighty
Personal Tracking Apps
1 open source alternative
Flowkey
Personal Tracking Apps
$16.99
month
1 open source alternative
Fluid
Low-Code/No-Code
$5
one-time
1 open source alternative
Flussonic
Media Servers
$169
month
1 open source alternative
Focus Booster
Time Tracking
1 open source alternative
Follett Destiny
ERP Systems
1 open source alternative
Fork
Version Control & Collaboration
$59
one-time
1 open source alternative
Formcarry
Form Backend Services
$5
month
1 open source alternative
Formester
Form Builders
$12
month
1 open source alternative
Open Source Software.io
Join our newsletter to get shiny new open source software delivered to your inbox. Unsubscribe anytime.