10+ Best Open Source Projects using Kotlin in 2026

Midori Browser

Fast, secure, and privacy-focused web browsing

Stars
286
Forks
17
Last commit
17 hours ago

Midori Browser is a lightweight, fast, and secure browser that protects users' privacy, available for Windows, Linux, and Android.

Open Source Alternative to:

Firefox

Orbital

Connect APIs, databases, and streams without glue code

Stars
352
Forks
11
Last commit
2 months ago

Automated data integration platform that connects APIs, databases, and event streams using semantic schemas. Deploy secure integrations in minutes with Git-based workflows.

Open Source Alternative to:

Apollo GraphQL

Cody

AI-powered coding assistant for enterprise development teams

Stars
82
Forks
29
Last commit
7 hours ago

Advanced AI coding assistant that helps enterprise teams write, fix, and maintain code with enhanced accuracy and consistency across large codebases

Open Source Alternative to:

Cursor

Brace.to

Securely save and access your favorite links across devices

Stars
101
Forks
3
Last commit
7 days ago

A privacy-focused bookmark manager that encrypts your saved links, allowing you to access them anytime, anywhere, on any device with complete control.

Open Source Alternative to:

Pocket

Justnote

Privacy-focused note-taking made simple and fast

Stars
66
Forks
5
Last commit
3 months ago

Justnote is a secure note-taking app that lets you easily create and sync notes across devices while maintaining full control of your data.

Open Source Alternative to:

Notion

Stars
Forks
Last commit

Stars
Forks
Last commit

Stars
Forks
Last commit

Stars
Forks
Last commit

Stars
Forks
Last commit

Stars
Forks
Last commit

Midori Browser

Fast, secure, and privacy-focused web browsing

Stars
286
Forks
17
Last commit
17 hours ago

Midori Browser is a lightweight, fast, and secure browser that protects users' privacy, available for Windows, Linux, and Android.

Open Source Alternative to:

Firefox

Orbital

Connect APIs, databases, and streams without glue code

Stars
352
Forks
11
Last commit
2 months ago

Automated data integration platform that connects APIs, databases, and event streams using semantic schemas. Deploy secure integrations in minutes with Git-based workflows.

Open Source Alternative to:

Apollo GraphQL

Cody

AI-powered coding assistant for enterprise development teams

Stars
82
Forks
29
Last commit
7 hours ago

Advanced AI coding assistant that helps enterprise teams write, fix, and maintain code with enhanced accuracy and consistency across large codebases

Open Source Alternative to:

Cursor

Brace.to

Securely save and access your favorite links across devices

Stars
101
Forks
3
Last commit
7 days ago

A privacy-focused bookmark manager that encrypts your saved links, allowing you to access them anytime, anywhere, on any device with complete control.

Open Source Alternative to:

Pocket

Justnote

Privacy-focused note-taking made simple and fast

Stars
66
Forks
5
Last commit
3 months ago

Justnote is a secure note-taking app that lets you easily create and sync notes across devices while maintaining full control of your data.

Open Source Alternative to:

Notion

Open Source Projects using Kotlin

A curated collection of the 47 best open source software using Kotlin. Find the most popular and trending open source projects to learn from, contribute to, or use in your own projects.

Browse tools using Kotlin by category

Accounting Software using Kotlin

AI Agent Platforms using Kotlin

AI Coding Assistants using Kotlin

AI Personal Assistants using Kotlin

AI-Powered Editors using Kotlin

API Infrastructure Tools using Kotlin

API Integration Tools using Kotlin

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

Bookmark Managers using Kotlin

Budgeting Apps using Kotlin

Business Software using Kotlin

CAPTCHA & Bot Protection Tools using Kotlin

Change Data Capture (CDC) Tools using Kotlin

Cloud File Sync & Share Tools using Kotlin

Cloud Storage Tools using Kotlin

Code Transformation Tools using Kotlin

Collaboration & Communication Tools using Kotlin

Collaborative Notes & Wikis using Kotlin

Collaborative Workspaces using Kotlin

Data Engineering & Integration Tools using Kotlin

Decentralized Social Networks using Kotlin

Developer Tools using Kotlin

Development Environments using Kotlin

Distributed Storage Tools using Kotlin

Email Clients using Kotlin

Encrypted Communication Tools using Kotlin

Encrypted Storage Tools using Kotlin

ETL & Data Integration Tools using Kotlin

Expense Management Tools using Kotlin

Feedback & Feature Request Management Tools using Kotlin

File Management Utilities using Kotlin

Form Builder Tools using Kotlin

Game Development Platforms using Kotlin

Headless CMS Tools using Kotlin

Investment Tracking Tools using Kotlin

Link Management & Shorteners using Kotlin

Low-Code/No-Code Platforms using Kotlin

Network Security Tools using Kotlin

Note-Taking Tools using Kotlin

PaaS & Deployment Tools using Kotlin

Performance Monitoring (APM) Tools using Kotlin

Personal Knowledge Management (PKM) Tools using Kotlin

Photo & Video Management Tools using Kotlin

Product Analytics using Kotlin

Productivity & Utilities using Kotlin

Project & Work Management Tools using Kotlin

Read-it-Later & Knowledge Hubs using Kotlin

Remote Desktop Software using Kotlin

Secure & Encrypted Notes using Kotlin

Secure Email Providers using Kotlin

Static Analysis Tools using Kotlin

Storage Tools using Kotlin

Survey Tools using Kotlin

Task Management Tools using Kotlin

Team Chat & Messaging Tools using Kotlin

Time Tracking Tools using Kotlin

Translation Management Tools using Kotlin

VPN & Secure Access Tools using Kotlin

Web Browsers using Kotlin

Web Frameworks using Kotlin

Website Builders using Kotlin

Whiteboarding Tools using Kotlin

Workflow Automation Tools using Kotlin

Browse tools using Kotlin by category

Accounting Software using Kotlin

AI Agent Platforms using Kotlin

AI Coding Assistants using Kotlin

AI Personal Assistants using Kotlin

AI-Powered Editors using Kotlin

API Infrastructure Tools using Kotlin

API Integration Tools using Kotlin

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

Bookmark Managers using Kotlin

Budgeting Apps using Kotlin

Business Software using Kotlin

CAPTCHA & Bot Protection Tools using Kotlin

Change Data Capture (CDC) Tools using Kotlin