Top Alternatives to TweakStyle

Notepad++ is a free open source notepad replacement and code editor with nice features. It supports syntax highlighting for many languages and has an extension system as well.

Sublime Text is a code editor and syntax highlighter with advanced features which can be enhanced with extensions too.

Vim is an open source advanced text editor.

Atom is a free open-source code editor from Github.

gedit is a free and open-source code editor.

Aptana Studio is a free open-source web development IDE

Brackets is an open-source editor written in HTML, CSS, and JavaScript with a primary focus on web development.

Adobe Dreamweaver is a web development tool developed by Adobe Systems.

Coda is a distributed file system developed as a research project.

TextMate is a graphical text editor for OS X 10.8+.

Komodo Edit is a free text editor for dynamic programming languages.

Visual Studio Code is a source code editor developed by Microsoft for Windows, Linux and macOS.

Codenvy builds upon Eclipse Che to provide one-click developer environments, team onboarding and collaboration, and a workspace platform for DevOps.

Notepad is a simple text editor for Microsoft Windows and a basic text-editing program which enables computer users to create documents.

UltraEdit is the world's best text editor for Windows, Mac, and Linux.

Bluefish is a free software advanced text editor with a variety of tools for programming in general and the development of dynamic websites.

Espresso helps you write, code, design, build and publish with flair and efficiency.

WebStorm is a lightweight yet powerful JavaScript IDE, perfectly equipped for client-side development and server-side development with Node.js.

VSCodium is an OpenSource repo of Free or Libre Open Source Software Binaries of VSCode.

Programmers Notepad(PN1) is an open-source text editor targeted at users who work with source code.

TextPad is a text editor for the Windows.

Pinegrow Web Designer lets you easily build and design webpages

Microsoft Expression Web, code-named Quartz, is an HTML editor and general web design software.

Peppermint is a Code editor for OSX.

BBEdit is a proprietary text editor.

ReText: Simple but powerful editor for Markdown and reStructuredText.

RJ TextEd is a freeware Unicode text and source code editor for Windows, that can also be used as a simple web development tool.

Textadept is a free software minimalist text editor designed for computer programming.

Scribes is a minimalist text editor that combines simplicity with power.

SynWrite is a free source code editor, HTML editor, and Notepad replacement for Windows systems.

CodeLobster PHP Edition is a free portable handy and easy-in-use code editor that is primarily intended for quick and easy creation and editing of PHP, HTML.

phpDesigner is a PHP IDE and PHP editor with built-in HTML5, CSS3 and JavaScript editors.

WYSIWYG Web Builder is a visual website editor.

Icecoder is a open-source code editor, providing a modern approach to building websites.

Flux is a professional web design environment.