Remove Special Characters (Non-Alphanumeric)

This tool removes or retains characters according to various non-alphanumeric filtering rules. You can strip out all symbols, keep just letters or digits, remove punctuation, or set a "custom list" of characters to remove (entered by the user).

Input

Output

Processing Mode:

Remove All Non-Alphanumeric Remove Non-Alphanumeric but Keep Spaces Remove Non-Alphanumeric but Keep Spaces and Underscores Remove Only Punctuation (Keep Letters, Digits, Spaces) Remove All Non-ASCII Characters Remove Everything Except Letters Remove Everything Except Digits

Remove Characters from a Custom List

Custom Characters to Remove :

Enter the characters you want removed. For example, #%&* means any ‘#’, ‘%’, ‘&’, or ‘*’ will be removed.

Examples:

Remove All Non-Alphanumeric

Strips everything except letters (A-Z, a-z) and digits (0-9). All punctuation, spaces, and symbols are removed.

Before:

Hello, World! 123 → "Hello, World! 123"
Symbols: $%^ → "Symbols: $%^"

After:

HelloWorld123
Symbols

Remove Non-Alphanumeric but Keep Spaces

Removes all symbols except letters, digits, and spaces.

Before:

Hello, World! 123 → "Hello, World! 123"
Check: #$@ → "Check: #$@"

After:

Hello World 123
Check

Remove Non-Alphanumeric but Keep Spaces and Underscores

Letters, digits, spaces, and underscores remain. Everything else is removed.

Before:

Hello_World! → "Hello_World!"
__Test__?? → "__Test__??"

After:

Hello_World
__Test__

Remove Only Punctuation (Keep Letters, Digits, Spaces)

Letters, digits, and spaces remain intact. Punctuation (like commas, dashes, parentheses) is stripped out.

Before:

(Hello) - World! 123 → "(Hello) - World! 123"
Punctuation: yes, no? → "Punctuation: yes, no?"

After:

Hello  World 123
Punctuation yes no

Remove All Non-ASCII Characters

Removes characters that lie outside the standard ASCII range (e.g., accented letters, emojis, or non-Latin scripts).

Before:

Café ☕ #1 → "Café ☕ #1"
你好 World → "你好 World"

After:

Cafe  #1
 World

Remove Everything Except Letters

Keeps only A-Z and a-z. Digits, punctuation, and spaces are removed.

Before:

Hello123 !! → "Hello123 !!"
AB-12 XY! → "AB-12 XY!"

After:

Hello
ABXY

Remove Everything Except Digits

Retains only digits (0-9). All letters, punctuation, and spaces are removed.

Before:

Tel: 123-456 → "Tel: 123-456"
A1 B2C3 → "A1 B2C3"

After:

123456
123

Remove Characters from a Custom List

Whatever characters the user provides in the “Custom Characters to Remove” field will be stripped out.

Before:

Hello #World% → "Hello #World%"
Keep Everything Else → "Keep Everything Else"

After:

Hello World
Keep Everything Else

📌 Detailed Description of the Tool: “Remove Non-Alphanumeric Characters”

This tool is designed to remove or retain characters based on various non-alphanumeric filtering rules. Whether you need to strip out all symbols, keep only letters or digits, remove punctuation, or specify a custom list of characters to remove, this tool provides multiple flexible options.

🧐 Key Features & How It Works

1⃣ Input Section

Users can enter or paste their text into the input text area.
Several convenient buttons enhance usability:
- Paste from Clipboard – Instantly pastes copied text.
- Import from .txt – Uploads a .txt file for text processing.
- Clear Input – Clears the content in the input area.
- See Examples – Loads example text for testing.

2⃣ Options Section – Custom Character Removal Modes

Users can choose how characters are removed with the following options:

🔹 Option 1: Remove All Non-Alphanumeric

What it does: Removes everything except letters (A-Z, a-z) and digits (0-9).
Useful for cleaning structured text.

🔹 Option 2: Remove Non-Alphanumeric but Keep Spaces

What it does: Removes all symbols except letters, digits, and spaces.
Ideal for preserving word separation.

🔹 Option 3: Remove Non-Alphanumeric but Keep Spaces and Underscores

What it does: Retains spaces and underscores while removing other symbols.
Great for filenames or structured text.

🔹 Option 4: Remove Only Punctuation (Keep Letters, Digits, Spaces)

What it does: Strips punctuation while keeping letters, digits, and spaces.
Useful for preparing text for NLP or search indexing.

🔹 Option 5: Remove All Non-ASCII Characters

What it does: Removes characters outside the standard ASCII range.
Great for ensuring compatibility with ASCII-based systems.

🔹 Option 6: Remove Everything Except Letters

What it does: Retains only alphabetic characters.
Perfect for extracting words from mixed-content text.

🔹 Option 7: Remove Everything Except Digits

What it does: Removes everything except numeric characters (0-9).
Ideal for extracting numeric data from mixed content.

🔹 Option 8: Remove Characters from a Custom List

What it does: Removes user-specified characters.
Allows fine-tuned customization for specific text formats.

3⃣ Process Button

Clicking the “Process Text” button applies the selected character removal mode to the input text.
The cleaned-up text appears in the output section.

4⃣ Output Section

Displays the cleaned text after processing.
Includes useful buttons:
- Copy Output – Copies the cleaned text to the clipboard.
- Download Output – Saves the cleaned text as a .txt file.
- Clear Output – Removes text from the output area.
- Append to Input – Moves the cleaned text back into the input field for further processing.

5⃣ Example Demonstrations

Each example includes:
- ✅ A Before & After comparison to illustrate the transformation.
- ✅ A “Try This Example” button to instantly load and process the example.

🚀 Why Use This Tool?

✅ Removes unwanted symbols for clean and structured text.
✅ Improves readability by eliminating unnecessary characters.
✅ Saves time by automating text cleanup.
✅ Provides flexible options to suit different use cases.

This tool is completely free and runs entirely in your browser without requiring installation or external APIs. 🚀