Kate

Kate

KDE
Koi Editor

Koi Editor

Hackerman, Inc.
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About

Kate is packed with features that will make it easier for you to view and edit all your text files. Kate lets you to edit and view many files at the same time, both in tabs and split views, and comes with a wide variety of plugins, including an embedded terminal that lets you launch console commands directly from Kate, powerful search and replace plugins, and a preview plugin that can show you what your MD, HTML and even SVG will look like. Kate supports highlighting for over 300 languages making it easier to read code in almost all programming languages. Kate also understands how brackets works and will help you navigate inside complex code blocks hierarchies. On-the-fly spellchecking is also included and will help you check your text before publishing. Work on multiple files at the same time with split views. Use the project sidebar to navigate your project directory structures and use Kate's smart tabs to quickly access your recently opened documents.

About

Koi Editor is a professional text editor for Mac, built around three principles: fast, local, and scriptable. Koi is designed for responsive editing from ordinary source files to very large documents. It includes multi-cursor editing, synchronized views, project-wide search, context-aware autocomplete, syntax highlighting for 30+ languages, code folding, file outlines, configurable themes and keybindings, and extensive editing commands. Koi requires no account, includes no telemetry, and can operate entirely offline. Configuration and keybindings are plain text, and custom editor commands can be written in Python. Optional AI features connect directly to local models through Ollama for code completion and inline assistance. Built specifically for Apple Silicon Macs, Koi combines a high-performance editing core with native macOS integration.

Platforms Supported

Windows Supported
Mac Supported
Linux Supported
Cloud Not Supported
On-Premises Not Supported
iPhone Not Supported
iPad Not Supported
Android Not Supported
Chromebook Not Supported

Platforms Supported

Windows Not Supported
Mac Supported
Linux Not Supported
Cloud Not Supported
On-Premises Not Supported
iPhone Not Supported
iPad Not Supported
Android Not Supported
Chromebook Not Supported

Audience

Content creators and programmers in search of a solution to view and edit all their text files

Audience

Software developers, programmers, and technical professionals on macOS who value fast, responsive editing, large-file performance, local workflows, keyboard-driven operation, and a scriptable environment.

Support

Phone Support Not Supported
24/7 Live Support Not Supported
Online Supported

Support

Phone Support Not Supported
24/7 Live Support Not Supported
Online Supported

API

Offers API Supported

API

Offers API Not Supported

Screenshots and Videos

Screenshots and Videos

Pricing

No information available.
Free Version Not Supported
Free Trial Not Supported

Pricing

$195, one-time
Free for non-commercial use.
Free Version Supported
Free Trial Not Supported

Reviews/Ratings

Overall 5.0 / 5
ease 5.0 / 5
features 4.0 / 5
design 4.0 / 5

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software

Pros & Cons from Real Users

Pros

  • It's free and open-source, extremely fast start-up times, uses very little memory, and surprisingly customizable (I barely did any myself though; I wanted to keep it light). I find it useful for swiftly taking notes at a moment's notice, but I have also used it to quickly peek through config files, source code, or even certain text documents--they all just work. As a user who swaps between Windows and Linux, it being cross-platform is such a huge plus for me, and is the leading reason why I use it over Notepad++. As much as I like tinkering with software and hardware alike, I also don't want to find out that certain features I use regularly on one OS's notepad don't exist on other OS's notepads, even some third-party ones. It's just some peace of mind.

Cons

  • It lags for ~1 sec when it wraps text for the first time since the app was opened. Even after using this app for over a year, I still find the logo hard to identify as a text editor of any kind. I still have to tell people who borrow my laptop that my notepad app is this, even when it's pinned to the taskbar and start menu.

Training

Documentation Supported
Webinars Not Supported
Live Online Not Supported
In Person Not Supported

Training

Documentation Supported
Webinars Not Supported
Live Online Not Supported
In Person Not Supported

Company Information

KDE
Founded: 1996
Germany
kate-editor.org

Company Information

Hackerman, Inc.
Founded: 2025
United States
koieditor.com

Alternatives

Emacs

Emacs

GNU

Alternatives

Pulsar

Pulsar

Pulsar-Edit
TextMate

TextMate

MacroMates

Categories

Code Editors Supported
HTML Editors Supported
Markdown Editors Supported
Text Editors Supported
XML Editors Supported

Categories

Text Editors Supported

Text Editors Features

API Not Supported
Auto-Complete Supported
Code Folding Supported
Column Editing Supported
Customizable Themes Supported
Debugging Not Supported
Formatting / Table Editing Not Supported
Keyboard Shortcuts Supported
Multi-Monitor Editing Supported
Syntax Highlighting Supported
WYSIWYG Not Supported

Integrations

C Supported
C++ Supported
HTML Supported
CSS Not Supported
Haskell Not Supported
JSON Not Supported
Java Not Supported
JavaScript Not Supported
LaTeX Not Supported
Lua Not Supported
MATLAB Not Supported
Odin Not Supported
Ollama Not Supported
PHP Not Supported
Python Not Supported
Qt Supported
Racket Supported
SQL Supported
XML Supported
YAML Not Supported

Integrations

C Supported
C++ Supported
HTML Supported
CSS Supported
Haskell Supported
JSON Supported
Java Supported
JavaScript Supported
LaTeX Supported
Lua Supported
MATLAB Supported
Odin Supported
Ollama Supported
PHP Supported
Python Supported
Qt Not Supported
Racket Not Supported
SQL Not Supported
XML Not Supported
YAML Supported
Claim Kate and update features and information
Claim Kate and update features and information
Claim Koi Editor and update features and information
Claim Koi Editor and update features and information