Kate

Kate is a free text editor for people who move between code and prose, and it is especially suited to users who want substantial editing tools across Linux, macOS, or Windows without paying for a plan. Its programming aids and plugins make it more capable than a basic editor, though its strengths are broad editing rather than a dedicated IDE workflow.

Overview

Kate can display multiple documents in horizontally or vertically split windows, making it easier to compare files or keep a reference visible while editing. Syntax highlighting for more than 400 languages, bracket matching, and on-the-fly spell checking give it useful range across source code and ordinary text. Remote-file access and support for Unicode and other encodings also help when working with files from different locations or systems.

Backups on save and swap files provide a practical safeguard against losing work after a system crash. The project is developed by volunteers around the world, with 95 contributors reported during the last year. KDE says its software generally sends no information from a user's device without explicit action; telemetry is opt-in and disabled by default.

Key features

Programming support includes auto-completion with argument hints, scriptable auto-indentation, and Vi input mode. Language Server Protocol integration supplies auto-completion for many languages. Multi-cursor and column editing, as well as macro recording, give users more control over repetitive or structured changes. These features make Kate a strong choice for editing code, but do not turn it into a full IDE.

Search and replace supports regular expressions and multiline searches across open documents or files on disk. That is useful for changes spanning a project or a collection of drafts, rather than only the current file. Listed plugins include an embedded terminal, SQL, build, GDB, and Replace in Files tools; extension support makes the editor adaptable to different workflows.

Kate's support channels are KDE Discuss, Matrix, and the KDE bug tracker. Nightly packages are compiled daily, but may be unstable, contain bugs, or have incomplete features; they are better suited to testing than to users who need a dependable build.

Pricing

Kate costs nothing. The free plan is the text editor for Linux, Windows, and macOS, with no paid tier or trial needed to use it. That makes it a straightforward option for individuals who want capable editing without a subscription or per-seat cost.

Platforms

Kate supports Linux, BSD, Windows, and macOS. Its availability across those systems suits users who want a consistent editor across different desktop environments.

Who it's for

Kate is a good fit for people who edit both text and code, need to work across multiple files, or value search, encoding, and recovery features in one free tool. It is less suited to users seeking a dedicated IDE centered on a specific language or development workflow.

Pros and cons

• Pro: Broad syntax highlighting and multi-file search make it useful across languages and larger editing tasks.
• Pro: Crash-recovery files, remote-file access, and support for multiple encodings address practical risks and varied file sources.
• Pro: The free plan covers Linux, BSD, Windows, and macOS, with no paid plan required.
• Con: It is a general-purpose editor, not a dedicated IDE for users who need a language-specific development environment.
• Con: Nightly builds can be unstable or incomplete, so users who prioritize reliability should avoid them.

Alternatives

Visual Studio Code is another free option for Linux, macOS, Windows, and the web; choose it if web access is important. Neovim is free and also supports Android and self-hosted use, making it a better fit if those platforms matter. Vim is a free alternative for Linux, macOS, and Windows. Zed offers a free Personal plan with 2,000 accepted edit predictions and external-agent or API-key support, so it may suit someone seeking those specific capabilities.

Notepad++ is a free Windows-only text and source code editor that supports several programming and natural languages; it is a narrower platform choice. BBEdit has a permanent Free Mode for core editing features after its evaluation period, making it an option for macOS users who want that arrangement. EmEditor is a Windows alternative with a Professional monthly subscription at $6 a month, a fit for readers considering a paid editor. jEdit is free software with full source code under GPL 2.0 and supports Linux, macOS, and Windows.

For more options, browse Text Editors or Code editors. Readers looking specifically for Rust, Go, or PHP development can also explore Rust IDEs, Go IDEs, and PHP IDEs.

Verdict

Choose Kate if you want a free, cross-platform editor that combines broad language support, flexible search, plugins, and practical recovery features. Look elsewhere if your priority is a dedicated IDE or you need a workflow built around a particular language; Kate's value is its range as an editor, not specialized development depth.