How to use the Remove Special Characters
Remove special characters with full control in three steps:
1
Paste your text
Paste any text with unwanted symbols or special characters into the input area.
2
Configure what to remove and keep
Toggle removal categories (punctuation, symbols, math, emoji, non-ASCII) and fine-grained keep options (hyphens, apostrophes, dots, underscores, @ signs). Use the custom remove and custom keep fields for any other specific characters.
3
Convert and copy
Click 'Remove Special Characters' and copy or download the cleaned output. Stats pills show the exact character count removed.
When to use this tool
Use to clean text for data processing, storage, and compatibility:
- →Sanitising user input before storing in a database that rejects or mishandles special characters
- →Removing unwanted symbols from file names to ensure cross-platform compatibility on Windows, macOS, and Linux
- →Cleaning scraped web content of decorative symbols, bullets, and non-standard characters before text analysis
- →Stripping formatting symbols from text exported from rich text editors, Google Docs, or Word
- →Preparing text for systems or APIs that accept only alphanumeric characters and specific punctuation
- →Removing emoji from user-generated content before feeding it to NLP pipelines that don't handle Unicode emoji ranges
Frequently asked questions
Q:Can I keep some special characters while removing others?
Yes — the tool has five dedicated keep toggles (hyphens, apostrophes, @ signs, dots, underscores) that override the removal categories. If you enable 'Remove punctuation' but also enable 'Keep dots', periods are preserved. The custom keep field accepts any characters you want to preserve regardless of which removal categories are active.
Q:How does emoji removal work?
The tool checks each character's Unicode code point against the major emoji ranges: Emoticons (U+1F600–U+1F64F), Miscellaneous Symbols and Pictographs (U+1F300–U+1F5FF), Transport and Map (U+1F680–U+1F6FF), Supplemental Symbols (U+1F900–U+1F9FF), Dingbats (U+2700–U+27BF), and Miscellaneous Symbols (U+2600–U+26FF). Variation selectors (U+FE00–U+FE0F) are also removed.
Q:What does 'Remove non-ASCII' do exactly?
It removes every character whose Unicode code point is above 127 — that is, any character not representable in the original 7-bit ASCII character set. This includes accented letters (é, ñ, ü), emoji, CJK characters, and any other non-Latin script. Only the 128 standard ASCII characters (letters, digits, basic punctuation, and control characters) are kept.
Q:What characters are in each removal category?
Punctuation covers standard sentence marks: . , ; : ! ? ' " ( ) [ ] { } — – … and their Unicode equivalents. Symbols covers @, #, $, %, &, *, _, /, and backtick. Math operators covers +, −, =, <, >, ^, ~, |, \, *, and /. Emoji covers Unicode emoji ranges. Non-ASCII covers all characters with code point above 127.
Q:Does the tool send my text to a server?
No — all processing runs entirely in your browser using JavaScript. Your text is never transmitted to any server, stored in a database, or logged in any way. You can safely clean confidential documents, API keys, personal data, or any sensitive content without privacy concerns.
Q:Is there a character limit on the input?
No hard limit is enforced. The tool processes text character-by-character in a single pass, so it handles documents with tens of thousands of characters without performance issues. All computation is done synchronously in the browser with no network round-trip.