Discover
the Best
Open Source Projects
Browse 10,000+ open source projects. Find the best alternatives to popular software.
Discover the best open source projects on GitHub. Browse by category, compare by stars and community activity, and find your next favorite open source software — whether you're building, learning, or looking for tools.
Replace your paid tools
Open source alternatives to 740+ commercial products
WordPress27
Shopify20
Amazon SES7
Squarespace6G
GameServers5I
Imgur5B
Brevo4T
TrainingPeaks4S
ShareX4A
Apple Calendar Server4C
Caldav.cloud4C
Charybdis4S
Strava4H
Hey4G
GTXGaming4B
Brightcove4DynamoDB3L
Libera.Chat IRCd3
Cloudinary3U
Utterances3WordPress27Shopify20Amazon SES7Squarespace6G
GameServers5I
Imgur5B
Brevo4T
TrainingPeaks4S
ShareX4A
Apple Calendar Server4C
Caldav.cloud4C
Charybdis4S
Strava4H
Hey4G
GTXGaming4B
Brightcove4DynamoDB3L
Libera.Chat IRCd3Cloudinary3U
Utterances3E
Ergo3
Amazon Alexa3C
Courier Mail Server2B
Bright Data2S
SmugMug2A
Apple Mail2S
Selenium2A
Appointment Reminder2O
OutSystems2A
Apify2F
FreshBooks2M
Mailgun2Q
QuickBooks2F
Folio2C
Cypress2Alexa2N
NETSCOUT GENBAND2F
Fullstory2S
Spark Email2A
Admin Bro2L
Langsmith2P
Pastebin2F
FiveM1I
Institutional Repositories Plus1R
Replika1L
Logrocket1
Imgix1M
Mendix1A
Appointy1S
Synthesia13
3CX1C
Cisco Unified Communications Manager1S
Sessionize1G
GameVault1
Instagram1C
Character.AI1W
Wasabi1D
Dyspatch1M
Mylar1S
Slite1L
Livedesk1C
Company of Heroes1M
Microsoft PowerApps1D
Descript1S
Supreme Commander1A
Aprimo1E
Ergo3Amazon Alexa3C
Courier Mail Server2B
Bright Data2S
SmugMug2A
Apple Mail2S
Selenium2A
Appointment Reminder2O
OutSystems2A
Apify2F
FreshBooks2M
Mailgun2Q
QuickBooks2F
Folio2C
Cypress2Alexa2N
NETSCOUT GENBAND2F
Fullstory2S
Spark Email2A
Admin Bro2L
Langsmith2P
Pastebin2F
FiveM1I
Institutional Repositories Plus1R
Replika1L
Logrocket1Imgix1M
Mendix1A
Appointy1S
Synthesia13
3CX1C
Cisco Unified Communications Manager1S
Sessionize1G
GameVault1Instagram1C
Character.AI1W
Wasabi1D
Dyspatch1M
Mylar1S
Slite1L
Livedesk1C
Company of Heroes1M
Microsoft PowerApps1D
Descript1S
Supreme Commander1A
Aprimo1E
ElevenLabs1C
Civil Comments1L
LastPass1D
DirectAdmin1R
Runway1W
Windsurf1S
Stripo1R
Resend1C
Composable Commerce1G
Google Cloud Text-to-Speech1T
Twilio Programmable Chat1I
Integration.io1G
GitHub Actions1C
Catbox1R
Roboflow1S
SendBird1A
Arcane1X
Xero1D
Dex1I
ISPConfig1L
Lattice1W
Website.change.monitor1P
Pst File Viewer1e
etcd Cloud1AWS Translate1A
Airmeet1Amazon Kindle1A
Azure Boards1P
Pictory11
1Password1
ImageKit1A
Atlassian Cloud1I
Imgbb1L
Lanyrd1S
Setmore1P
Pastie1C
Calibre Companion1AWS Secrets Manager1P
Prompt.com1R
RedM1V
Verba1R
ReadabilityPremium1G
Greenhouse1D
DrapCode1C
Clerk1C
CVAT1S
Softr11
15Five1L
LocalLine1AWS IoT Core1C
Cline1F
FlutterFlow1L
LabelImg1D
DocuSafe1M
MinIO1T
TestCafe1S
StarCraft1T
Temp Mail1W
Warcraft III1B
Bitrise1P
Promptly1C
Confluence Cloud0E
ElevenLabs1C
Civil Comments1L
LastPass1D
DirectAdmin1R
Runway1W
Windsurf1S
Stripo1R
Resend1C
Composable Commerce1G
Google Cloud Text-to-Speech1T
Twilio Programmable Chat1I
Integration.io1G
GitHub Actions1C
Catbox1R
Roboflow1S
SendBird1A
Arcane1X
Xero1D
Dex1I
ISPConfig1L
Lattice1W
Website.change.monitor1P
Pst File Viewer1e
etcd Cloud1AWS Translate1A
Airmeet1Amazon Kindle1A
Azure Boards1P
Pictory11
1Password1ImageKit1A
Atlassian Cloud1I
Imgbb1L
Lanyrd1S
Setmore1P
Pastie1C
Calibre Companion1AWS Secrets Manager1P
Prompt.com1R
RedM1V
Verba1R
ReadabilityPremium1G
Greenhouse1D
DrapCode1C
Clerk1C
CVAT1S
Softr11
15Five1L
LocalLine1AWS IoT Core1C
Cline1F
FlutterFlow1L
LabelImg1D
DocuSafe1M
MinIO1T
TestCafe1S
StarCraft1T
Temp Mail1W
Warcraft III1B
Bitrise1P
Promptly1C
Confluence Cloud0Built by a developer, for developers
GitHub has 200M+ repos.
Good luck finding the right one.
I kept Googling “open source alternative to X” and landing on the same SEO-farmed listicles. So I built this — a directory that actually shows you the data that matters: stars, last commit, license, and whether anyone is still maintaining the thing.
No paid placements. Projects are ranked by real GitHub activity, not who paid for a listing.
Skip the “awesome lists” rabbit hole. Browse by category, see screenshots, and compare alternatives side by side.
Save your SaaS budget. Every tool here is free and open source. Self-host it, fork it, make it yours.
Frequently Asked Questions
What is open source software?
Open source software is software with source code that anyone can inspect, modify, and enhance. It is typically free to use and developed collaboratively by a community of developers.
How do I find the best open source alternatives?
You can browse open source alternatives by category, search by the commercial software you want to replace, or compare projects by GitHub stars, community activity, and features on OpenSourceProjects.cc.
What does "self-hosted" mean for open source projects?
Self-hosted means you can install and run the software on your own server or infrastructure, giving you full control over your data and customization, instead of relying on a third-party cloud service.
Why use open source projects instead of proprietary tools?
Open source software offers transparency, community-driven development, no vendor lock-in, and often zero licensing cost. You can audit the code for security, customize it to your needs, and benefit from contributions by thousands of developers worldwide.
Are open source projects free to use?
Most open source projects are free to download and use. Some offer paid hosting, support, or enterprise features, but the core software remains free under open source licenses like MIT, Apache 2.0, or GPL.
