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Sublime Text VS CustomTkinter

Compare Sublime Text VS CustomTkinter and see what are their differences

Sublime Text logo Sublime Text

Sublime Text is a sophisticated text editor for code, html and prose - any kind of text file. You'll love the slick user interface and extraordinary features. Fully customizable with macros, and syntax highlighting for most major languages.

CustomTkinter logo CustomTkinter

CustomTkinter is a python desktop UI-library based on Tkinter, which provides modern looking and fully customizable widgets.
  • Sublime Text Landing page
    Landing page //
    2023-07-17
  • CustomTkinter Landing page
    Landing page //
    2026-07-16

Sublime Text features and specs

  • Speed
    Sublime Text is known for its fast performance, even with very large files and heavy duty workloads, providing a smooth coding experience.
  • Customizability
    It offers extensive customization options via JSON settings files, allowing users to tailor the editor to their specific needs and preferences.
  • Package Control
    The Package Control feature allows for easy installation, management, and discovery of plugins and themes, greatly enhancing functionality.
  • Multi-Platform Support
    Available on Windows, macOS, and Linux, it enables a consistent working environment across different operating systems.
  • Multiple Selections
    Allows for simultaneous editing by making multiple text selections, which is a powerful feature for rapidly making large-scale changes.
  • Distraction-Free Mode
    Offers a distraction-free mode that lets you focus on code by providing a full-screen, minimal interface.
  • Command Palette
    Provides a command palette that gives quick access to various functionalities, making performing complex actions easier.

Possible disadvantages of Sublime Text

  • Cost
    While a free evaluation version is available, continued use requires purchasing a license, which may be a barrier for hobbyists or cash-strapped developers.
  • Limited IDE Features
    It lacks some of the advanced features found in full-fledged Integrated Development Environments (IDEs), such as robust debugging tools and integrated version control.
  • Steep Learning Curve
    The high degree of customizability can be overwhelming for beginners, requiring a significant time investment to master.
  • Plugin Dependencies
    While the extensive plugin ecosystem is an advantage, it can also lead to dependencies on third-party plugins which may not always be reliable or maintained.
  • No Real-Time Collaboration
    Unlike some modern editors, Sublime Text lacks built-in support for real-time collaboration between multiple users.
  • Occasional Plugin Conflicts
    Plugins can occasionally conflict with each other, causing unexpected behavior or performance issues.
  • Less Active Community
    Compared to some other popular editors like VSCode, the Sublime Text community is relatively smaller and less active.

CustomTkinter features and specs

  • Modern UI Appearance
    CustomTkinter provides a modern, flat, and visually appealing look for Tkinter applications, with rounded corners, better color schemes, and improved widget styling compared to standard Tkinter.
  • Easy Transition from Tkinter
    Since it's built on top of Tkinter and uses similar syntax and widget names, developers familiar with Tkinter can easily transition to CustomTkinter without a steep learning curve.
  • Built-in Dark and Light Mode
    CustomTkinter supports automatic and manual switching between dark and light appearance modes, making it easy to create apps that adapt to system themes or user preferences.
  • Customizable Themes
    The library allows for extensive customization through theme files (JSON), enabling developers to create and apply custom color schemes and styles across their entire application.
  • Cross-Platform Compatibility
    CustomTkinter works across Windows, macOS, and Linux, providing a consistent look and feel across different operating systems, which is an improvement over native Tkinter's platform-dependent appearance.

Possible disadvantages of CustomTkinter

  • Limited Widget Set
    Compared to more mature GUI frameworks like PyQt or Kivy, CustomTkinter offers a smaller set of widgets, which may require additional custom development for complex applications.
  • Performance Overhead
    The additional styling and rendering logic on top of Tkinter can introduce slight performance overhead, especially in applications with many widgets or frequent UI updates.
  • Dependency on Tkinter Limitations
    Since it's built on Tkinter, CustomTkinter inherits some of Tkinter's inherent limitations, such as less flexible layout management and fewer built-in animations compared to modern frameworks.
  • Smaller Community and Ecosystem
    As a relatively newer library, CustomTkinter has a smaller community, fewer third-party extensions, and less extensive documentation compared to more established GUI frameworks.
  • Occasional Bugs and Inconsistencies
    Being under active development, users may encounter occasional bugs, inconsistent behavior across platforms, or breaking changes between version updates that require code adjustments.

Analysis of CustomTkinter

Overall verdict

  • CustomTkinter is a solid choice for Python developers who want to build modern-looking desktop GUIs without leaving the familiar Tkinter ecosystem. It provides a good balance between ease of use and visual polish, making it especially attractive for smaller to medium-sized projects.

Why this product is good

  • Built on top of standard Tkinter, so it's easy to learn if you already know Tkinter
  • Provides modern, flat-styled widgets with rounded corners and better default aesthetics than vanilla Tkinter
  • Supports light and dark mode theming out of the box, including system theme detection
  • Cross-platform support for Windows, macOS, and Linux
  • Actively maintained with regular updates and a growing community
  • Free and open-source with a permissive license
  • Good documentation and examples to help beginners get started quickly
  • Customizable color themes and widget appearance without needing CSS-like styling

Recommended for

  • Python developers who want a quick way to modernize Tkinter-based UIs
  • Hobbyists and students building desktop apps for personal or academic projects
  • Small business or indie developers creating internal tools or utilities
  • Developers who prefer lightweight GUI frameworks over heavier alternatives like PyQt or Kivy
  • Projects that need dark mode support without complex theming systems
  • Anyone already familiar with Tkinter looking for an easy upgrade path

Sublime Text videos

SUBLIME TEXT REVIEW | CODE EDITOR TOOL

More videos:

  • Review - Visual Studio Code vs Sublime Text - Laravel Dev POV

CustomTkinter videos

No CustomTkinter videos yet. You could help us improve this page by suggesting one.

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Category Popularity

0-100% (relative to Sublime Text and CustomTkinter)
Text Editors
100 100%
0% 0
Rapid Application Development
IDE
99 99%
1% 1
Software Development
100 100%
0% 0

User comments

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Reviews

These are some of the external sources and on-site user reviews we've used to compare Sublime Text and CustomTkinter

Sublime Text Reviews

Boost Your Productivity with These Top Text Editors and IDEs
Sublime Text is widely regarded as one of the best text editors for coding. Its speed, flexibility, and ease of use make it a favorite among developers. With a simple and intuitive user interface, Sublime Text allows you to focus on your code without distractions. It supports a wide range of programming languages and offers features like split editing, multiple selections,...
Source: convesio.com
13 Best Text Editors to Speed up Your Workflow
As for the features, Sublime Text has an advantage in that itโ€™s extremely lightweight (low resource usage), but still keeps around some of the more advanced features you would expect out of a top text editor. The primary benefit is that Sublime Text offers shortcuts and search tools for immediately finding certain functions and making changes to multiple lines at once....
Source: kinsta.com
Top 10 Free CSV Readers in 2023!
Sublime Text: A text editor that supports multiple file formats including CSV and has powerful features for viewing and editing large CSV files.
Source: www.retable.io
Top 10 Notepad++ Alternatives for Mac in 2022
Another Notepad++ Mac alternative, Sublime Text is a good choice if youโ€™re going for code sophistication. The tool supports a lot o programming languages and mark-ups. In addition, you can even add in plugins in order to incorporate new functions. Sublime Text can actually be downloaded for free by Mac users. A purchased version is next up after you have finished the license.
Source: www.imymac.com
What's The Best C++ IDE? Our Top C++ IDEs & Editors In 2024
Sublime Text also offers a clean and uncluttered interface, which is great for focusing on your code without unnecessary distractions. This minimalist approach is combined with powerful editing features like syntax highlighting, customizable key bindings, code folding, and an advanced search functionality.
Source: hackr.io

CustomTkinter Reviews

We have no reviews of CustomTkinter yet.
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Social recommendations and mentions

Based on our record, Sublime Text seems to be more popular. It has been mentiond 3 times since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.

Sublime Text mentions (3)

  • Want better keybinding parity between micro and Sublime Text?
    I went through the key-bindings in Micro (which use different modifier keys) and added them to Sublime Text:. - Source: dev.to / over 3 years ago
  • Trying pop os episode 1
    Oh, and sublimetext.com too if you prefer something "cleaner". It is multi-platform too, like VSCodium. Source: over 4 years ago
  • Sublime Text 3 Setup
    Sublime Text Terminal Shortcuts and menu entries for opening a terminal at the current file, or the current root project folder in Sublime Text. - Source: dev.to / over 5 years ago

CustomTkinter mentions (0)

We have not tracked any mentions of CustomTkinter yet. Tracking of CustomTkinter recommendations started around Jul 2026.

What are some alternatives?

When comparing Sublime Text and CustomTkinter, you can also consider the following products

VS Code - Build and debug modern web and cloud applications, by Microsoft

PyQt - Riverbank | Software | PyQt | What is PyQt?

Vim - Highly configurable text editor built to enable efficient text editing

Kivy - Open source Python framework for rapid development of applications that make use of innovative user interfaces, such as multi-touch apps. Installation on WindowsInstallation on Windows. Installation; What are wheels .

Notepad++ - A free source code editor which supports several programming languages running under the MS Windows environment.

Qt - Powerful, flexible and easy to use, Qt will help you not only meet your tight deadline, but also reduce the maintainable code by an astonishing percentage.