Kate

Kate is a fast multi-document, multi-view text editor for programmers by KDE. It features stuff like LSP (Language Server Protocol) support, projects, multiple cursors and selections, git integration, folder wide search, horizontal and vertical splits, vi mode, syntax highlighting for 300+ languages, built-in terminal, dynamic word wrap and much more. It is available on Linux, BSD, Windows and MacOS.

Features:

MDI, window splitting, window tabbing

Spell checking

CR, CRLF, LF newline support

Encoding support (utf-8, utf-16, ascii etc.)

Encoding conversion

Regular expression based find & replace

Syntax highlighting for 300+ languages

Code and text folding

Multiple cursors and multiple selections

Block selection mode

Auto indentation

Auto completion support

Shell integration

Wide protocol support (http, ftp, ssh, webdav etc.)

Extensible via plugins

Integrated terminal

Scriptable using JavaScript

Vi mode