10+ Best Open Source Projects using Sendgrid in 2026

Novu

The open source Inbox component and notification platform

Stars
38,936
Forks
4,276
Last commit
8 hours ago

A powerful, open-source notification infrastructure for developers to manage and send multi-channel notifications with ease.

Open Source Alternative to:

Customer.io

Strapi

Craft and manage content with ease and flexibility

Stars
72,070
Forks
9,691
Last commit
8 hours ago

A powerful headless CMS that enables developers to build, deploy, and manage content-rich applications with customizable APIs and a user-friendly admin panel.

Open Source Alternative to:

Sanity

Cal.com

Streamline scheduling, boost productivity, simplify life

Stars
42,351
Forks
13,131
Last commit
16 hours ago

An open-source scheduling platform that simplifies appointment booking, integrates seamlessly, and enhances team collaboration.

Open Source Alternative to:

Calendly

ToolJet

Build internal tools rapidly without coding

Stars
37,864
Forks
5,040
Last commit
10 hours ago

Open-source low-code platform for creating custom internal tools, dashboards, and admin panels with a drag-and-drop interface

Open Source Alternative to:

Retool

Medusa

Open-source e-commerce for modern developers

Stars
32,879
Forks
4,351
Last commit
11 hours ago

Flexible, customizable e-commerce platform with headless architecture, built-in features, and extensive plugin ecosystem for scalable online stores.

Open Source Alternative to:

Shopify

ActivePieces

Automate workflows with no-code integration platform

Stars
22,052
Forks
3,620
Last commit
8 hours ago

Open-source integration platform for seamless workflow automation. Connect apps, automate tasks, and boost productivity effortlessly.

Open Source Alternative to:

n8n

Botpress

Build powerful AI agents with cutting-edge LLM technology

Stars
14,671
Forks
2,252
Last commit
8 hours ago

A comprehensive platform for creating AI agents with intuitive tools, extensive integrations, and enterprise-grade features powered by the latest language models.

Open Source Alternative to:

Voiceflow

Convex

Build full-stack apps with TypeScript and real-time sync

Stars
11,516
Forks
704
Last commit
9 hours ago

Open-source reactive database that keeps your web and mobile apps in sync. Write everything in TypeScript with built-in auth, cron jobs, and AI integration.

Open Source Alternative to:

Supabase

Gumroad

Your all-in-one marketplace for digital creators and products

Stars
9,019
Forks
1,906
Last commit
9 hours ago

A digital marketplace platform where creators can sell digital products, from courses to software, with built-in payment processing and content delivery.

Open Source Alternative to:

Stripe

Highlight

Real-time observability for modern web applications

Stars
9,251
Forks
544
Last commit
20 days ago

Comprehensive monitoring solution offering error tracking, session replay, and performance insights for seamless debugging and optimization.

Open Source Alternative to:

DataDog

OneUptime

Comprehensive monitoring and incident management platform

Stars
6,939
Forks
374
Last commit
10 hours ago

All-in-one solution for uptime monitoring, incident management, and status pages to keep your services running smoothly

Open Source Alternative to:

Opsgenie

Erxes

Open-source growth platform for customer-centric teams

Stars
3,972
Forks
1,276
Last commit
8 hours ago

All-in-one solution for marketing, sales, and customer service. Boost engagement, streamline workflows, and drive growth.

Open Source Alternative to:

HubSpot

Dittofeed

Open-source customer engagement platform for automation

Stars
2,746
Forks
341
Last commit
1 month ago

Dittofeed offers low-code tools for message automation across multiple channels, including powerful segmentation and personalization features.

Open Source Alternative to:

Mailchimp

Peekaping

Self-hosted uptime monitoring you own and control

Stars
1,099
Forks
58
Last commit
25 days ago

Open-source uptime monitoring solution with real-time alerts, status pages, and comprehensive checks for websites, APIs, databases, and services.

Open Source Alternative to:

Opsgenie

Storyden

Build lasting communities with modern forum technology

Stars
307
Forks
34
Last commit
4 days ago

Create permanent, discoverable communities with modern forum features. Combines discussion, curation, and wiki functionality in one platform.

Open Source Alternative to:

Skool

Novu

The open source Inbox component and notification platform

Stars
38,936
Forks
4,276
Last commit
8 hours ago

A powerful, open-source notification infrastructure for developers to manage and send multi-channel notifications with ease.

Open Source Alternative to:

Customer.io

Strapi

Craft and manage content with ease and flexibility

Stars
72,070
Forks
9,691
Last commit
8 hours ago

A powerful headless CMS that enables developers to build, deploy, and manage content-rich applications with customizable APIs and a user-friendly admin panel.

Open Source Alternative to:

Sanity

Cal.com

Streamline scheduling, boost productivity, simplify life

Stars
42,351
Forks
13,131
Last commit
16 hours ago

An open-source scheduling platform that simplifies appointment booking, integrates seamlessly, and enhances team collaboration.

Open Source Alternative to:

Calendly

ToolJet

Build internal tools rapidly without coding

Stars
37,864
Forks
5,040
Last commit
10 hours ago

Open-source low-code platform for creating custom internal tools, dashboards, and admin panels with a drag-and-drop interface

Open Source Alternative to:

Retool

Medusa

Open-source e-commerce for modern developers

Stars
32,879
Forks
4,351
Last commit
11 hours ago

Flexible, customizable e-commerce platform with headless architecture, built-in features, and extensive plugin ecosystem for scalable online stores.

Open Source Alternative to:

Shopify

ActivePieces

Automate workflows with no-code integration platform

Stars
22,052
Forks
3,620
Last commit
8 hours ago

Open-source integration platform for seamless workflow automation. Connect apps, automate tasks, and boost productivity effortlessly.

Open Source Alternative to:

n8n

Botpress

Build powerful AI agents with cutting-edge LLM technology

Stars
14,671
Forks
2,252
Last commit
8 hours ago

A comprehensive platform for creating AI agents with intuitive tools, extensive integrations, and enterprise-grade features powered by the latest language models.

Open Source Alternative to:

Voiceflow

Convex

Build full-stack apps with TypeScript and real-time sync

Stars
11,516
Forks
704
Last commit
9 hours ago

Open-source reactive database that keeps your web and mobile apps in sync. Write everything in TypeScript with built-in auth, cron jobs, and AI integration.

Open Source Alternative to:

Supabase

Gumroad

Your all-in-one marketplace for digital creators and products

Stars
9,019
Forks
1,906
Last commit
9 hours ago

A digital marketplace platform where creators can sell digital products, from courses to software, with built-in payment processing and content delivery.

Open Source Alternative to:

Stripe

Highlight

Real-time observability for modern web applications

Stars
9,251
Forks
544
Last commit
20 days ago

Comprehensive monitoring solution offering error tracking, session replay, and performance insights for seamless debugging and optimization.

Open Source Alternative to:

DataDog

OneUptime

Comprehensive monitoring and incident management platform

Stars
6,939
Forks
374
Last commit
10 hours ago

All-in-one solution for uptime monitoring, incident management, and status pages to keep your services running smoothly

Open Source Alternative to:

Opsgenie

Erxes

Open-source growth platform for customer-centric teams

Stars
3,972
Forks
1,276
Last commit
8 hours ago

All-in-one solution for marketing, sales, and customer service. Boost engagement, streamline workflows, and drive growth.

Open Source Alternative to:

HubSpot

Dittofeed

Open-source customer engagement platform for automation

Stars
2,746
Forks
341
Last commit
1 month ago

Dittofeed offers low-code tools for message automation across multiple channels, including powerful segmentation and personalization features.

Open Source Alternative to:

Mailchimp

Peekaping

Self-hosted uptime monitoring you own and control

Stars
1,099
Forks
58
Last commit
25 days ago

Open-source uptime monitoring solution with real-time alerts, status pages, and comprehensive checks for websites, APIs, databases, and services.

Open Source Alternative to:

Opsgenie

Storyden

Build lasting communities with modern forum technology

Stars
307
Forks
34
Last commit
4 days ago

Create permanent, discoverable communities with modern forum features. Combines discussion, curation, and wiki functionality in one platform.

Open Source Alternative to:

Skool

Open Source Projects using Sendgrid

A curated collection of the 15 best open source software using Sendgrid. Find the most popular and trending open source projects to learn from, contribute to, or use in your own projects.

Browse tools using Sendgrid by category

AI Agent Platforms using Sendgrid

API Integration Tools using Sendgrid

Appointment Scheduling Tools using Sendgrid

Backend-as-a-Service (BaaS) Tools using Sendgrid

Chatbot Platforms using Sendgrid

Community Building Platforms using Sendgrid

Course Creation Platforms using Sendgrid

CRM Systems using Sendgrid

Customer Communication Platforms using Sendgrid

Error Tracking Tools using Sendgrid

Forum Software using Sendgrid

Headless CMS Tools using Sendgrid

Headless Commerce Tools using Sendgrid

Infrastructure Monitoring Tools using Sendgrid

Invoicing & Payment Tools using Sendgrid

Low-Code/No-Code Platforms using Sendgrid

Marketing Automation Tools using Sendgrid

Payment Infrastructure Tools using Sendgrid

Performance Monitoring (APM) Tools using Sendgrid

Push Notification Services using Sendgrid

Status Pages using Sendgrid

Uptime Monitoring Tools using Sendgrid

Wiki Software using Sendgrid

Workflow Automation Tools using Sendgrid

Browse tools using Sendgrid by category

AI Agent Platforms using Sendgrid

API Integration Tools using Sendgrid

Appointment Scheduling Tools using Sendgrid

Backend-as-a-Service (BaaS) Tools using Sendgrid

Chatbot Platforms using Sendgrid

Community Building Platforms using Sendgrid

Course Creation Platforms using Sendgrid

CRM Systems using Sendgrid

Customer Communication Platforms using Sendgrid

Error Tracking Tools using Sendgrid

Forum Software using Sendgrid

Headless CMS Tools using Sendgrid

Headless Commerce Tools using Sendgrid

Infrastructure Monitoring Tools using Sendgrid

Invoicing & Payment Tools using Sendgrid

Low-Code/No-Code Platforms using Sendgrid

Marketing Automation Tools using Sendgrid

Payment Infrastructure Tools using Sendgrid

Performance Monitoring (APM) Tools using Sendgrid

Push Notification Services using Sendgrid

Status Pages using Sendgrid

Uptime Monitoring Tools using Sendgrid

Wiki Software using Sendgrid

Workflow Automation Tools using Sendgrid