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.

redmine

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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。

sqlines provides tools to help you transfer data, convert database schema (ddl), views, stored procedures, packages, user-defined functions (udfs), triggers, sql queries, sql scripts between different database platforms. * sqlines sql converter

vinchin backup & recovery is a professional vm backup, vm migration and database protection solution for various environments like vmware vsphere, hyper-v, proxmox, xenserver, xcp-ng, ovirt, olvm, oracle database, sql server, my sql, mariadb, etc.

planio makes web based project management and team collaboration more efficient and fun. it is the perfect platform for your projects, team members and clients.

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

dolthub is where people collaboratively build, manage, and distribute structured data.