Vim is an open-source modal text editor released by Bram Moolenaar in 1991, renowned for efficient keyboard-driven editing, ubiquitous availability, and minimal resource usage, a classic tool for system administrators and developers.
Neovim is a modern refactor of Vim supporting async plugins, a built-in LSP client, Treesitter, and Lua configuration, representing the next-generation modal editor.
Atom is an open source code editor released by GitHub in 2014, built on Electron for cross-platform use, fully hackable with thousands of community packages, and officially discontinued in 2022 with a recommendation to migrate to VS Code.