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Open source alternatives to LetterStack
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Open source alternatives to LetterStack

Open source startups in the same category as LetterStack, ranked by GitHub stars and growth. Each repository is verified as belonging to the startup.

StartupRepositoryStars+30d90 daysLicense
textbee.dev - sms gateway vernu/textbee 3,169 +84 textbee.dev - sms gateway: GitHub stars, last 90 days MIT
DreamFactory dreamfactorysoftware/dreamfactory 1,785 +2 DreamFactory: GitHub stars, last 90 days Apache-2.0
Zuplo zuplo/zudoku 599 +9 Zuplo: GitHub stars, last 90 days MIT
API7 cloud api7/lua-resty-radixtree 284 +2 API7 cloud: GitHub stars, last 90 days Apache-2.0
MailPace mailpace/templates 260 +1 MailPace: GitHub stars, last 90 days MIT
MailerSend mailersend/mailersend-nodejs 175 +2 MailerSend: GitHub stars, last 90 days MIT
ConnectyCube connectycube/connectycube-reactnative-samples 126 0 ConnectyCube: GitHub stars, last 90 days Apache-2.0
Django Simple Mail - Transactional email made easy in Django charlesthk/django-simple-mail 72 0 Django Simple Mail - Transactional email made easy in Django: GitHub stars, last 90 days MIT
ClaudeGate santosh-prasad-verma/claudegate 32 +2 ClaudeGate: GitHub stars, last 90 days —
Elastic Email elasticemail/elasticemail-examples 22 +22 Elastic Email: GitHub stars, last 90 days MIT
mm-gateway sloth-os/mm-gateway 2 0 mm-gateway: GitHub stars, last 90 days —

Data: GitHub APIAll open source startups →