github is where over 100 million developers shape the future of software, together. contribute to the open source community, manage your git repositories, review code like a pro, track bugs and features, power your ci/cd and devops workflows, and secure code before you commit it.

transform your redmine to easy redmine and get all the project plugins you were missing. upgradable from any redmine version, 100% open source. start for free now!

stack overflow is the largest, most trusted online community for developers to learn, share​ ​their programming ​knowledge, and build their careers.

mantisbt is a popular free web-based bug tracking system. it is written in php works with mysql, ms sql, and postgresql databases. mantisbt has been installed on windows, linux, mac os, os/2, and others. it is released under the terms of the gnu general public license (gpl).

activecollab is the project management software that gives you complete control over your work - all tasks, communication, team members and files.

ガントチャート満足度no.1！大規模プロジェクトも進捗の遅れがすぐわかるlychee redmine。現場からリーダー、経営層まで一気通貫。点在する情報を集約。国内開発の本格的なプロジェクト管理ツールです。タスク同士の依存関係やマイルストーンを見ながら状況を確認。イナズマ線やクリティカルパスなど管理しやすいツールです。

trusted by millions, basecamp puts everything you need to get work done in one place. it’s the calm, organized way to manage projects, work with clients, and communicate company-wide.

with over 1 million apps deployed per month, bitnami makes it incredibly easy to deploy apps with native installers, as virtual machines, docker containers or in the cloud.

atlassian's team collaboration software like jira, confluence and trello help teams organize, discuss, and complete shared work.

free desktop project scheduling and management app with gantt chart for windows, linux and macos