What Is a Text Editor? A Comprehensive Guide on Choosing

A text editor is one of the most essential tools for programmers, writers, system administrators, and anyone who works with code or plain text files. The correct editor enables users to save time and decrease errors. Test editors also help boost their productivity when working with HTML and Python scripts, configuration files, and Markdown documents.

The selection of text editor options extends from online to offline versions with lightweight to feature-packed variations, which makes choosing the best one challenging.

In this guide, we’ll break down:

• What a text editor really is
• How it works behind the scenes
• Key features to look for
• Why native editors often outperform browser-based ones
• How to find the right fit for your workflow

Whether you’re just getting started or looking to upgrade your tools, this guide will help you make an informed decision—and show you why UltraEdit is trusted by power users worldwide.

Before we dive into the technical side, here’s a quick story on how it all began…

Author’s journey: how it all started

“Back in the early days of the web, I built my first site using Microsoft FrontPage and uploaded it to Angelfire. I didn’t know much about coding then, but I’ll never forget a friend telling me that he’d stopped using tables for layout and was hand-coding CSS in Notepad instead. That blew my mind. Why would anyone use such a basic tool to code a website? That curiosity launched my journey into understanding how computers—and text—really work.”

What is a text editor?

A text editor is a type of software used to create and modify plain text files. Unlike word processors like Microsoft Word, which add formatting (like bold, italics, and images), a text editor keeps things simple—it works with raw, unformatted text.

Think of it as a digital notepad for code, config files, scripts, and more.

Text editors are essential for:

• Writing and editing code (HTML, CSS, JavaScript, Python, etc.)
• Working with configuration files like JSON, XML, and YAML
• Creating README files or Markdown documentation
• Editing logs or data exports in plain text

Whether you’re building a website, troubleshooting a server, or tweaking a game mod, chances are you’re using a text editor to do it.

Some of the most well-known text editors include:

• UltraEdit (Windows/macOS/Linux) – a feature-rich text editor trusted by professionals for secure, large-file editing
• Notepad (Windows)
• TextEdit (macOS)
• Nano or Vim (Linux)

Why it matters

Plain text is the foundation of almost everything in computing—from code and configuration to data. A good text editor helps you interact directly with this raw layer, giving you full control and flexibility in your work.

Text editor vs IDE: what’s the difference?

New to coding or working with text files?  You’ve probably stumbled upon both text editor and IDE (Integrated Development Environment). But what’s the difference—and which one do you need?

If you’re just starting out, a text editor like UltraEdit gives you speed, simplicity, and the flexibility to grow your skills at your own pace—without being overwhelmed by too many features.

What is a plain text file?

A plain text file is one of the simplest and most universal file formats in computing. It contains only text—no fonts, colors, bold formatting, images, or embedded code—just raw, human-readable characters saved in a standard encoding format like UTF-8  or ASCII.

These files typically have extensions  like .txt, .csv, .md, .json, or .log and are commonly used for:

• Writing code (HTML, CSS, JavaScript,  Python)
• Storing configuration settings (like .ini or .yaml files)
• Logging system activity (log files)
• Keeping documentation and README files

Why plain text matters

Plain text files are incredibly lightweight and flexible. Any text editor across any device or operating system can open and read plain text files because they lack hidden formatting.

The plain text format provides complete visibility and control of your work because it eliminates application-specific issues and hidden formatting.

How it works behind the scenes

Computers store all information through binary data, which consists of consecutive 0s and 1s. The conversion of binary values into readable text occurs through character encoding methods.

A plain text file consists of readable characters that exist as bytes that function as digital building blocks. The content exists as clean and editable text without any formatting or distractions, which makes it ideal for scripting, programming, and documentation purposes.

Pro tip:

Save all your notes, config, and code as plain text whenever you are unsure about the file format. The plain text format represents the most portable and future-safe method to store information that all contemporary text editors can read.

How does a text editor work?

A text editor may look simple on the surface, but under the hood, it’s doing a lot of heavy lifting to translate data your computer understands into readable content you can work with.

So, how does it all work?

Step-by-step breakdown

1. Opening a file
   When you open a file in a text editor, it pulls the raw binary data stored on your device—just a stream of 0s and 1s.
2. Decoding the text
   The editor then uses a character encoding method (like UTF-8 or ASCII) to convert that binary into readable letters, numbers, and symbols. Without the correct encoding, you’d see a mess of unreadable characters.
3. Displaying the content
   Once decoded, the editor displays the plain text in a simple interface where you can read, edit, or format it with features like syntax highlighting or auto-indentation (in more advanced editors).
4. Editing the file
   As you type, cut, paste, or delete, the editor updates the content in real time. Behind the scenes, it adjusts the data in memory, prepping it for saving.
5. Saving your changes
   When you hit Save, the editor converts your changes back into binary data and writes it to disk—either creating a new file or replacing the old one.

It’s all about translation

At its core, a text editor is a translator between you and your computer. It helps you:

• Read binary data as a human text
• Write human text as binary data
• Edit that data safely, quickly, and efficiently

Did you know?
Some advanced editors like UltraEdit go even further by supporting large files, secure environments, remote editing via FTP/SSH, and powerful find/replace features—all while still operating on the core principle of reading and writing plain text.

How to customize your text editor

One of the biggest advantages of using a powerful text editor—especially one like UltraEdit—is the ability to make it your own. Whether you’re a coder, sysadmin, or writer, customizing your workspace helps you work faster, smarter, and more comfortably.

Here’s how you can tailor your text editor to fit your workflow—featuring examples from UltraEdit.

1. Change themes and color schemes

Tired of staring at black-on-white or white-on-black? UltraEdit offers multiple preloaded themes (light, dark, high contrast) and even allows you to create your own custom color palette.

UltraEdit Example: Switch to the “Deep Blue” theme for night coding, or create a custom one for Markdown editing with soft pastel highlights.

Change themes in the UltraEdit text editor

Managing themes in the UltraEdit text and code editor

2. Remap your keyboard shortcuts

Everyone has their own preferred keystrokes. Save time by remapping commands to match your muscle memory.

UltraEdit Example: Go to the Advanced menu, select Settings, and navigate to Key Mapping in the Navigation section on the left side of the Configuration window to remap or add keyboard shortcuts in UltraEdit.

Remap or add keyboard shortcuts in UltraEdit

3. Customize file handling and layout

Tweak how tabs, file trees, and split views behave to match your preferences.

UltraEdit Example: Set vertical split view to compare log files side-by-side, or auto-open files in specific directories on startup.

UltraEdit file handling settings in the Configuration window

4. Add macros and scripts

Automate repetitive tasks with custom macros or scripts. This is especially useful if you regularly reformat text, generate snippets, or manipulate large datasets.

UltraEdit Example: Create a macro to clean up log files by removing timestamps or extracting only specific lines that match a keyword.

UltraEdit macros

5. Extend with plugins or integrations

Depending on your editor, plugins can add features like version control, live preview, or enhanced find/replace capabilities.

While UltraEdit doesn’t use third-party plugins, it offers powerful built-in integrations like FTP/SFTP, scripting, Live preview, etc. 

6. Adjust tab spacing, indentation, and word wrapping

These basic tweaks can make or break your experience, especially when working across teams or file types.

UltraEdit Example: Set 2-space indentation for HTML projects, enable soft wrap for Markdown, or apply language-specific formatting rules automatically.

Explore more in the UltraEdit text editor wiki.

Use cases of text editors

A text editor may seem like a basic tool, but it has applications that range from casual tasks to complex technical workflows. Text editors are used by a wide range of professionals every day.

Here are some of the most common (and surprising) ways people use text editors in the real world:

1. Writing and editing code

This is the most well-known use case. Developers use text editors to write and maintain code in languages like HTML, CSS, JavaScript, Python, C++, and many more.

Example: Building a website layout using HTML and CSS, or editing backend logic in Python.

2. Editing configuration files

System administrators and DevOps professionals often work with plain text config files such as .ini, .json, .yaml, or .env to set up environments and control how apps behave.

Example: Tweaking a server’s environment variables in a .env file or updating JSON config for an app deployment.

3. Sorting and cleaning data

Text editors are useful for sorting, filtering, and cleaning plain text data, especially CSVs or logs that don’t require a full spreadsheet application.

Example: Removing duplicates, fixing inconsistent delimiters, or alphabetizing a list of entries.

4. Debugging and inspecting logs

IT professionals and developers use text editors to open massive log files and quickly search for errors, timestamps, or specific behaviors.

Example: Scanning a 500MB server log for a specific IP address or HTTP error code using UltraEdit’s Find-in-Files tool.

5. Creating documentation

Writers and tech teams often use text editors to create README files, Markdown documentation, and plain-text instructions that are lightweight and easy to version control.

Example: Writing installation guides or changelogs in Markdown format for GitHub projects.

6. Manipulating unusual or niche formats

Some users work with obscure or legacy formats that require a flexible tool. A good text editor can open and clean up these files without breaking formatting.

Example: Editing old text files from scientific instruments or niche industry systems with strange formatting rules.

7. Remote file editing

With built-in FTP, FTPS, and SFTP integration, advanced editors like UltraEdit let you securely connect to remote servers and edit files directly, without switching to a separate file transfer tool.

Example: Open and modify HTML, PHP, or configuration files on a web server in real time, using UltraEdit’s remote file browser and editor pane.

8. Managing website content via CMS

Many content management systems (CMS), like WordPress or Joomla, use built-in or external text editors for content creation and updates.

Example: Editing an article or customizing an HTML block inside a CMS dashboard.

9. Writing posts and comments on blogs & forums

Text editors are widely used for composing blog posts, submitting forum replies, and leaving comments online.

Example: Formatting a long-form blog comment using Markdown or BBCode.

10. Handling large files efficiently

Some editors—like UltraEdit—are purpose-built to open, view, and edit multi-gigabyte text files without slowing down.

Example: Opening a massive server log or data dump that crashes standard editors.

From coding and system management to content creation and data manipulation, the versatility of text editors makes them a critical tool in any digital toolkit.

Online vs. native text editors

Two fundamental text editor options are commonly available to users today: online, browser-based tools and native, installed applications. The selection between these two options depends on your specific requirements.

Comparing essential features will help you select the most suitable tool for your work process.

Native text editor

A native text editor is a software application you download and install on your device. It runs locally, giving you more control, speed, and flexibility.

Pros:

• High performance – Faster response time and less lag, especially with large files
• Full OS integration – Drag-and-drop support, file associations, and context menu options
• Advanced features – File system browsing, syntax highlighting, macros, and plugins
• Better privacy – Files stay on your local system unless you choose to upload them
• Offline access – Works even when you’re not connected to the internet

Cons: 

• Requires setup – Needs installation and occasional updates
• Local-only access – Custom settings don’t sync across devices unless manually configured

Example: UltraEdit gives you powerful editing tools, large file support, FTP access, and advanced search—all in one fast native app.

Online text editor

An online text editor runs entirely in your web browser. You don’t need to install anything, and they’re convenient for quick edits or basic tasks.

Pros:

• Accessible from anywhere – Just open your browser on any device
• No installation required – Great for one-time or temporary tasks
• Cloud-based storage – Easily save and sync across devices

Cons:

• Slower performance – Especially with large files or complex operations
• Requires internet – No access during outages or when offline
• Privacy concerns – Files may be processed or stored on external servers
• Limited features – Missing advanced tools like multi-file search, macros, or scripting

Example: If you’re quickly editing a Markdown note or copying raw code, an online editor might be enough—but for ongoing work, a native solution is more dependable.

Which one should you choose?

Our recommendation

If you’re editing code regularly, working with sensitive files, or handling large documents, a native editor like UltraEdit is the smarter choice. Online editors are great for quick edits, but for real productivity, go with power and reliability.

Can you run code in a text editor?

Technically, a text editor itself doesn’t run code—it’s designed to write, view, and edit code. But many modern editors can work alongside tools like compilers, interpreters, or browsers to help you run and test your code from within the editor environment.

Think of a text editor as your coding workspace, and the tools that run your code are like external machines you connect to from that workspace.

So, how does it work?

Here’s what typically happens behind the scenes:

1. You write your code in a language like HTML, Python, JavaScript, or C++.
2. The text editor saves your code in a plain text file with the appropriate file extension (like .py, .html, .cpp).
3. You trigger a command or shortcut inside the editor to run the code.
4. An external program takes over—for example:
   • A browser previews HTML/CSS
   • A Python interpreter executes your Python script
   • A compiler builds and runs your C++ project

The editor doesn’t execute the code itself—it simply sends it to the right tool and shows you the output.

Real examples with UltraEdit

UltraEdit supports:

• Custom tool integration – Run compilers, scripts, or shell commands directly from the toolbar or menu.
• Output windows – See the results of your code execution or script processing within the editor.
• Syntax highlighting – For dozens of programming languages, making code easier to read and debug.

Example: You can configure UltraEdit to run a Python script with a single click, or compile a C++ file and view the console output—without leaving the editor.

What it can’t do alone

Text editors are not full compilers or interpreters. They won’t:

• Debug your code step-by-step (unless extended with plugins)
• Automatically compile projects (unless you set it up)
• Provide runtime environments (like IDEs do)

What they can do

• Write clean, well-formatted code
• Highlight errors (basic syntax issues)
• Run external scripts or tools on demand
• Give you full control over your development environment

A text editor is the control center—it’s where you write and launch code, but not where the code is executed. With the right setup, though, it can feel like an all-in-one coding environment—especially when using a powerful editor like UltraEdit.

Which text editor is best for you?

There is a wide range of text editors available on the market. They include free and paid versions with basic and advanced features, which creates a confusing situation. The most suitable text editor for you will depend on your work process, personal preferences, and your specific project requirements.

When selecting your text editor, consider the following factors:

What to look for:

• The editor should perform well with big file sizes without slowing down.
• Language Support – Does it highlight and format the code you use?
• Customization – Can you change themes, shortcuts, or layouts?
• The editor should handle multiple files and tabs, and sessions without difficulty.
• Security – Are your files stored locally and safely?
• Advanced Tools – Do you need FTP, macro support, or scripting?

Who uses what?

New users will find Notepad or Sublime Text suitable because of their basic interfaces.

Web developers typically select between VS Code and UltraEdit as their preferred text editors.

System administrators, together with data administrators, require sophisticated file search capabilities, comparison functions, and scripting tools.

The tools for Markdown support, together with sorting and formatting functions, make writers and analysts more efficient.

Why UltraEdit might be the right choice

If you’re looking for a reliable, professional-grade text editor that’s fast, flexible, and powerful enough to grow with you—UltraEdit checks all the boxes.

Here’s why thousands of users worldwide choose it:

UltraEdit highlights:

• Ultra-fast performance – Even with multi-gigabyte files
• Secure local editing – No risk of cloud-based data exposure
• Customizable UI – Themes, layouts, shortcuts, macros, and more
• Advanced find & replace – Across directories, with regex support
• Built-in FTP/SFTP – Edit files directly on remote servers
• Macro & scripting support – Automate complex tasks in seconds
• Multi-language support – Includes syntax highlighting for hundreds of formats

Whether you’re coding, debugging, analyzing logs, or editing configuration files—UltraEdit adapts to your workflow and gets out of your way.

Bonus: UltraEdit also includes a 30-day free trial—so you can test everything before committing.

Ready to try UltraEdit for yourself?

Download your 30-day free trial

Explore its features, test your workflow, and see why it’s trusted by developers, sysadmins, analysts, and tech pros worldwide.

Your perfect text editor might just be one click away.