Bluefish

Bluefish is a powerful editor targeted towards programmers and web developers, with many options to write code, scripts and websites. Bluefish supports many programming and markup languages and has many features, but is still a very fast and lightweight application.

Note that the flatpak version of Bluefish does not integrate well with other tools on your system due to flatpak security restrictions.

A selection of the features:

Well done syntax highlighting which for example supports languages inside languages (e.g. Javascript inside HTML inside PHP)

All kind of powerful editor features like auto indenting and auto completion for many functions and libraries in many programming languages

Project support

Support for remote files over ftp, sftp, webdav, etc

Powerful multi-file and regex capable search and replace engine

Customizable integration of external programs such as pylint, make, etc

Snippets plugin to automate often used code

Code-aware in-line spell checking

Zencoding or Emmet support

Bookmarks

If you are an occasional coder who is in need for a simple to learn editor, or a heavy coder who dislikes heavy IDE's like eclipse or netbeans, Bluefish is your editor of choice!