String Inspector - Hidden Unicode Characters

Reveal hidden and confusing characters in text: zero-width spaces, BOM, bidirectional overrides (Trojan Source), homoglyphs, non-breaking spaces, smart quotes, and control characters. Shows code points, UTF-8/UTF-16 bytes, length metrics, and cleans or escapes the text.

Input

Revealed · 6 hidden/suspicious Click a character for details

Characters (graphemes)

Code points

JS length (UTF-16)

UTF-8 bytes

UTF-16 bytes

122

Words

Lines

Non-ASCII

Contains Unicode NFC: no NFKC: no Line endings: LF ×1, CRLF ×1 Scripts: Latin, Cyrillic

Findings

⚠ Bidirectional override / isolate ×2

Can visually reorder text (Trojan Source, CVE-2021-42574). Dangerous in source code and filenames.

⚠ Homoglyphs (Latin lookalikes) ×1

Cyrillic/Greek/fullwidth letters that look like Latin. Common in phishing domains and spoofed identifiers.

Zero-width characters ×1

Invisible characters that break string equality, search, and copy-paste of code or passwords.

Byte Order Mark (BOM) ×1

U+FEFF often breaks shebangs, JSON/CSV parsers, and shell scripts when it appears at the start of a file.

Non-standard spaces ×1

No-break, thin, em, ideographic and other spaces that look like a normal space but are not.

Smart punctuation ×3

Curly quotes, en/em dashes, ellipsis — usually from word processors. Breaks code and shell commands.

Mixed line endings ×2

1 LF, 1 CRLF, 0 CR.

Trailing whitespace ×1

Spaces or tabs at the end of lines.

Not NFC normalized ×1

Visually identical text may compare unequal (e.g. é as e + combining accent).

Mixed scripts ×2

Text mixes Latin, Cyrillic — a common sign of homoglyph spoofing.

Clean · 5 chars removed

password = “s3crеt” — café evil.exe 👩🏽‍💻
next line

Escape as

\uFEFFpassword\u200B = \u201Cs3cr\u0435t\u201D\u00A0\u2014 cafe\u0301 \u202Eevil.exe\u202C \u{1F469}\u{1F3FD}\u200D\u{1F4BB}\r\nnext line \n

Code Points

Only hidden / suspicious

#	Char	Code Point	Name / Category	UTF-8	UTF-16
0	[FEFF]	U+FEFF	ZERO WIDTH NO-BREAK SPACE (BOM)	EF BB BF	FEFF
1	p	U+0070	LATIN SMALL LETTER P	70	0070
2	a	U+0061	LATIN SMALL LETTER A	61	0061
3	s	U+0073	LATIN SMALL LETTER S	73	0073
4	s	U+0073	LATIN SMALL LETTER S	73	0073
5	w	U+0077	LATIN SMALL LETTER W	77	0077
6	o	U+006F	LATIN SMALL LETTER O	6F	006F
7	r	U+0072	LATIN SMALL LETTER R	72	0072
8	d	U+0064	LATIN SMALL LETTER D	64	0064
9	[200B]	U+200B	ZERO WIDTH SPACE	E2 80 8B	200B
10	·	U+0020	SPACE	20	0020
11	=	U+003D	symbol	3D	003D
12	·	U+0020	SPACE	20	0020
13	“	U+201C	LEFT DOUBLE QUOTATION MARK	E2 80 9C	201C
14	s	U+0073	LATIN SMALL LETTER S	73	0073
15	3	U+0033	DIGIT 3	33	0033
16	c	U+0063	LATIN SMALL LETTER C	63	0063
17	r	U+0072	LATIN SMALL LETTER R	72	0072
18	е	U+0435	CYRILLIC LETTER (looks like Latin "e")	D0 B5	0435
19	t	U+0074	LATIN SMALL LETTER T	74	0074
20	”	U+201D	RIGHT DOUBLE QUOTATION MARK	E2 80 9D	201D
21	[00A0]	U+00A0	NO-BREAK SPACE	C2 A0	00A0
22	—	U+2014	EM DASH	E2 80 94	2014
23	·	U+0020	SPACE	20	0020
24	c	U+0063	LATIN SMALL LETTER C	63	0063
25	a	U+0061	LATIN SMALL LETTER A	61	0061
26	f	U+0066	LATIN SMALL LETTER F	66	0066
27	e	U+0065	LATIN SMALL LETTER E	65	0065
28	◌́	U+0301	combining	CC 81	0301
29	·	U+0020	SPACE	20	0020
30	[202E]	U+202E	RIGHT-TO-LEFT OVERRIDE	E2 80 AE	202E
31	e	U+0065	LATIN SMALL LETTER E	65	0065
32	v	U+0076	LATIN SMALL LETTER V	76	0076
33	i	U+0069	LATIN SMALL LETTER I	69	0069
34	l	U+006C	LATIN SMALL LETTER L	6C	006C
35	.	U+002E	punctuation	2E	002E
36	e	U+0065	LATIN SMALL LETTER E	65	0065
37	x	U+0078	LATIN SMALL LETTER X	78	0078
38	e	U+0065	LATIN SMALL LETTER E	65	0065
39	[202C]	U+202C	POP DIRECTIONAL FORMATTING	E2 80 AC	202C
40	·	U+0020	SPACE	20	0020
41	👩	U+1F469	emoji	F0 9F 91 A9	D83D DC69
42	🏽	U+1F3FD	symbol	F0 9F 8F BD	D83C DFFD
43	[200D]	U+200D	ZERO WIDTH JOINER	E2 80 8D	200D
44	💻	U+1F4BB	emoji	F0 9F 92 BB	D83D DCBB
45	␍	U+000D	CARRIAGE RETURN (CR)	0D	000D
46	↵	U+000A	LINE FEED (LF)	0A	000A
47	n	U+006E	LATIN SMALL LETTER N	6E	006E
48	e	U+0065	LATIN SMALL LETTER E	65	0065
49	x	U+0078	LATIN SMALL LETTER X	78	0078
50	t	U+0074	LATIN SMALL LETTER T	74	0074
51	·	U+0020	SPACE	20	0020
52	l	U+006C	LATIN SMALL LETTER L	6C	006C
53	i	U+0069	LATIN SMALL LETTER I	69	0069
54	n	U+006E	LATIN SMALL LETTER N	6E	006E
55	e	U+0065	LATIN SMALL LETTER E	65	0065
56	·	U+0020	SPACE	20	0020
57	↵	U+000A	LINE FEED (LF)	0A	000A