Soscisurvey
soscisurvey.de › tools › view-chars.php
View non-printable unicode characters
Online tool to display non-printable characters that may be hidden in copy&pasted strings.
Text-Utils
text-utils.com › remove special characters
Remove Special Characters - Online Regex Tools | Text-Utils.com
September 6, 2025 - The tool can be used to remove special characters from text.
How to Check special characters in a string | OutSystems
I'm using Regex_search to find the special characters in a input-box · Can you please help me which pattern to be used in Regex_search to find special characters in a input-box More on outsystems.com
A way to detect chatGPT text
Sorry to be dimwitted—but what am I looking for to indicate AI use? Is there a key somewhere that tells what the output means? More on reddit.com
80
477
May 9, 2025How to detect special characters in a text file
I tend to run into this issue a lot importing client data from previous software. I use Sublime Text 3 with the the regex search, here are a few of my go-to's (keep in mind we're french so I make allowances for those:
Regex Not-in-good-list: [\x00-\x7F’‚àáâãÀÁÂÄçÇŠéèêëÉÈÊËîïÎÌÏ«»òóðôÓÔÖ¢ùûÙÛ¸…+-]
Regex In-Bad-List: [\x00-\x08\x0b-\x0c\x0e-\x1b]
Typically I'll combine this with catchalls and cut the data to another file to check manually.
Sublime is pretty decent with files up to around 50mb, it's workable larger but there's definitely a performance hit. I wish I knew of a program better suited for the several gb range.
Having problems with reddit formatting, I don't post here often ><
More on reddit.com 7
5
May 12, 2020Finding special characters in string
Why are you searching for special characters? Just remove the ones you don't want. How about underscores? import re a = "qwertyuiop]\asdfghjkl;'zxcvbnm,./!@#$%^&*()_+1234567890-=" a = re.sub("[^\w-]", "", a) print a More on reddit.com
5
7
February 16, 201409:04
How to Find Special Characters in Excel - YouTube
04:26
Show Unicode Special Characters in Noteapd++ (Pound Symbol & UTF ...
00:50
How to Find Special and Hidden Characters in Microsoft Word (2021)!
04:22
Searching for Special Characters - YouTube
Find and Replace Formatting and Special Characters in Word
07:35
How to Find and Replace Special Characters in Microsoft Word - YouTube
Textmagic
freetools.textmagic.com › unicode-detector
Free unicode character detector for text messages
Use our free unicode character detector to check GSM or unicode symbols in your text messages and remove them from your next SMS.
PhraseFix
phrasefix.com › tools › non-standard-character-checker
Non Standard Character Checker - PhraseFix
Free online tool that checks for non standard characters and non-ASCII characters. Simply enter the text and the online tool will detect whether there are non standard characters.
Invisible Character Viewer
invisiblecharacterviewer.com
Invisible Character Viewer (ㅤ) - Copy & Detect Invisible Text
1Enter or paste your text into the textarea above. 2The app will automatically detect and highlight all invisible characters. 3Highlighted characters will show a special symbol or their Unicode code point. 4Hover over highlighted characters to see their Unicode code point and character name. 5Use the checkbox to toggle the visibility of space characters. This online tool reveals and highlights non-printable characters that may be hidden in copy & pasted text, such as spaces, tabs, line breaks, zero-width, and other control codes.
Unicode Lookup
unicodelookup.com
Unicode Lookup: convert special characters
Unicode Lookup is an online reference tool to lookup Unicode and HTML special characters, by name and number, and convert between their decimal, hexadecimal, and octal bases.
DCode
dcode.fr › data processing › text processing › special characters
Special Characters Remover/Detector - Online ASCII Remplacement
Tool to manage special characters: delete them, replace them, convert them to ASCII and simplify the processing of text messages without encoding issues. ... dCode is free and its tools are a valuable help in games, maths, geocaching, puzzles and problems to solve every day!
The SMS Works
thesmsworks.co.uk › unicode-detector
SMS Unicode Detector
SMS Message Tester - check message length, the number of characters your message will take up, and check for unicode characters.
Ntia
elcidonline.ntia.gov › help › Documents › How to Find Special Characters in Data.pdf pdf
How To Find Special Characters In Data
If you are cutting and pasting from a text file, such as an XML file, you can find non-ASCII characters as ... 7. Click ‘Close’ and the cursor will be place immediately after the special character if one is found · (cursor will return to where the search began if no special characters are found). 8. If you hit ‘Backspace’ immediately after the search, a special character will expand into its
Nousphere
nousphere.net › cleanspecial.php
Clean Special Characters from Word Text or HTML Code
A quick and easy free tool to remove special characters from Word cut and pastes. For use when pasting to your blog, article, sales page, or email newsletter.
Case Converter Online
onlinecaseconvert.com › remove-characters-from-text-online
Remove Special Characters Online ✅ Online Text Remover 2026
1 week ago - Our super easy interface allows you to quickly remove any symbol or letter, even whole word can be changed using the find and replace function. Whether you have a short paragraph or a large amount of data, our website has got your back. Just paste your text, choose the characters you want to eliminate, and with a single click, your text will be formatted.
TextRapp
textrapp.com › free-tools › free-unicode-checker-tool
Textr Team – Free Unicode Checker Tool
Textr – Free Unicode Checker Tool. Quickly identify Unicode characters in your text messages, avoid segmentation and save sending costs.
RegExr
regexr.com › 3913e
RegExr: Special characters
Create new tests with the 'Add Test' button. Click a test to edit the name, type, & text. ... Roll-over elements below to highlight in the Expression above. Click to open in Reference. [^ Negated set. Match any character that is not in the set.
Regex Tester
regextester.com › 99810
special characters check - Regex Tester/Debugger
Results update in real-time as you type.
Online Text Tools
onlinetexttools.com › find-unique-text-letters
Find Unique Letters in Text – Online Text Tools
Super simple, free and fast browser-based utility for finding unique letters in text. Just paste your text here and you'll instantly get all the unique letters in it. Textabulous!
Chrome Web Store
chromewebstore.google.com › detail › special-characters-unicod › nenecpncmjnembdcemieinlflpjlhfai
Special Characters: Unicode Symbols & Special Characters Picker - Chrome Web Store
Find, copy, and insert Unicode symbols and special characters instantly from your browser.
OutSystems
outsystems.com › forums › discussion › 58583 › how-to-check-special-characters-in-a-string
How to Check special characters in a string | OutSystems
March 13, 2020 - I'm using Regex_search to find the special characters in a input-box · Can you please help me which pattern to be used in Regex_search to find special characters in a input-box
Reddit
reddit.com › r/professors › a way to detect chatgpt text
r/Professors on Reddit: A way to detect chatGPT text
May 9, 2025 -
Saw this in the chatGPT sub. Apparently cGPT imbeds special unicode for specific types of spaces that no student would know to use, or likely know how to use. Similar to the “em dash” - but the em dash isn’t foolproof, as students know how to type em dashes and sometimes may use them correctly. But I doubt any of them know how to use these special spaces.
In a consultation with students, just ask them how/why they used the “non-page-break spaces”, and their lack of answer basically admits to using chatGPT.
The reveal uses an online tool I’ve never heard of, but one that shows special characters.
Tool: https://www.soscisurvey.de/tools/view-chars.php
See:
https://www.reddit.com/r/ChatGPT/s/4EoJUcEEHK
Not suggesting this is foolproof, just another tool in our arsenal.
Top answer 1 of 5
58
Sorry to be dimwitted—but what am I looking for to indicate AI use? Is there a key somewhere that tells what the output means?
2 of 5
55
You can see those in just about any word processor by turning on "show invisibles" or "show formatting characters." The command will vary. In LibreOffice, it's ctrl-F10, "formatting marks" under "view." It's not the AI necessarily that's spitting those out. It's whatever engine is rendering the text/html in the browser. So it could be or could not be ChatGPT or SnapChat AI or Chegg or Dregg or whateverdafeck. Some word processor settings will produce nonbreaking spaces. I haven't seen this or looked for this in a while, but some collocations can automatically be assigned a nonbreaking space. I think PageMaker used to have an option to do that. Maybe it was Quark. It's been a while. (In this last sentence, I put in a nonbreaking space to insure that "a while" would appear together on the same line.) Some anti-plagiarism-detection websites will insert Unicode characters that look like standard Roman characters. Those and nonbreaking spaces will be picked up on websites that detect, wait for it, Unicode characters that aren't in the standard ASCII-Roman set (the first 128 Unicode characters). Anyway. This is one of those "one neat trick" unhelpfuls.
UW Computer Sciences
pages.cs.wisc.edu › ~markm › ascii.html
Check for non-ASCII
Choose a file to check for non-ASCII characters: · OR Copy/paste your code here to check for non-ASCII characters:
CopyChar
copychar.cc
CopyChar – Copy special characters to your clipboard
A basic app that allows you to find and copy special characters to your clipboard. Click or tap on a character and it will be copied to your clipboard.