Unicode inspector

See what is really in a piece of text: every code point with its name, and the characters that hide or deceive, from zero-width spaces and Trojan Source bidirectional controls to Cyrillic letters posing as Latin. Look up any code point, find one by name, clean a text and write it as escapes in eight languages.

Codificación y datos

Documentation

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50 code points, 50 UTF-16 units, 58 UTF-8 bytes, 1 line; 4 outside ASCII.

4 code points need a look.

Bidirectional controls left open

Line 1: U+202E U+2066 still open at the end of the line. Everything after them on that line can be displayed in an order different from the order a compiler or parser reads it, which is the Trojan Source pattern (CVE-2021-42574).

What was found

Bidirectional control: 4Changes the order in which the text around it is displayed. Right-to-left text needs it; in code it can make a line read differently from how it runs (UTS #55).
Invisible: 4Default_Ignorable_Code_Point: where it is not supported it is simply not rendered at all.

The text, with every hidden character shown

Each character that needs a look is drawn as a tag with its code point; hover or focus it for the name.

if access_level != "userU+202E U+2066// Check if adminU+2069 U+2066" {

Every code point

At	Line:Col	Char	Name	Category	Script	Flags
0	1:1	i		`Ll`	`Latn`
1	1:2	f		`Ll`	`Latn`
2	1:3	␣		`Zs`	`Zyyy`
3	1:4	a		`Ll`	`Latn`
4	1:5	c		`Ll`	`Latn`
5	1:6	c		`Ll`	`Latn`
6	1:7	e		`Ll`	`Latn`
7	1:8	s		`Ll`	`Latn`
8	1:9	s		`Ll`	`Latn`
9	1:10	_		`Pc`	`Zyyy`
10	1:11	l		`Ll`	`Latn`
11	1:12	e		`Ll`	`Latn`
12	1:13	v		`Ll`	`Latn`
13	1:14	e		`Ll`	`Latn`
14	1:15	l		`Ll`	`Latn`
15	1:16	␣		`Zs`	`Zyyy`
16	1:17	!		`Po`	`Zyyy`
17	1:18	=		`Sm`	`Zyyy`
18	1:19	␣		`Zs`	`Zyyy`
19	1:20	"		`Po`	`Zyyy`
20	1:21	u		`Ll`	`Latn`
21	1:22	s		`Ll`	`Latn`
22	1:23	e		`Ll`	`Latn`
23	1:24	r		`Ll`	`Latn`
24	1:25	-	RIGHT-TO-LEFT OVERRIDE	`Cf`	`Zyyy`	Bidirectional control, Invisible
25	1:26	␣		`Zs`	`Zyyy`
26	1:27	-	LEFT-TO-RIGHT ISOLATE	`Cf`	`Zyyy`	Bidirectional control, Invisible
27	1:28	/		`Po`	`Zyyy`
28	1:29	/		`Po`	`Zyyy`
29	1:30	␣		`Zs`	`Zyyy`
30	1:31	C		`Lu`	`Latn`
31	1:32	h		`Ll`	`Latn`
32	1:33	e		`Ll`	`Latn`
33	1:34	c		`Ll`	`Latn`
34	1:35	k		`Ll`	`Latn`
35	1:36	␣		`Zs`	`Zyyy`
36	1:37	i		`Ll`	`Latn`
37	1:38	f		`Ll`	`Latn`
38	1:39	␣		`Zs`	`Zyyy`
39	1:40	a		`Ll`	`Latn`
40	1:41	d		`Ll`	`Latn`
41	1:42	m		`Ll`	`Latn`
42	1:43	i		`Ll`	`Latn`
43	1:44	n		`Ll`	`Latn`
44	1:45	-	POP DIRECTIONAL ISOLATE	`Cf`	`Zyyy`	Bidirectional control, Invisible
45	1:46	␣		`Zs`	`Zyyy`
46	1:47	-	LEFT-TO-RIGHT ISOLATE	`Cf`	`Zyyy`	Bidirectional control, Invisible
47	1:48	"		`Po`	`Zyyy`
48	1:49	␣		`Zs`	`Zyyy`
49	1:50	{		`Ps`	`Zyyy`

Cleaned copy

Choose what to change. Folding lookalikes also changes genuine words in other scripts, so it is off by default.

Remove invisible and bidirectional charactersUse ASCII spaces and line feedsUse ASCII quotes and hyphensReplace lookalikes with ASCII

4 removed, 0 spaces or line breaks, 0 quotes or dashes, 0 lookalikes replaced.

if access_level != "user // Check if admin " {

Write the text as escapes

Every character outside printable ASCII as an escape, and the characters each language reserves escaped too. Each form was decoded back by its own language when this tool was built.

Language

if access_level != \"user\u202E \u2066// Check if admin\u2069 \u2066\" {

API endpointGEThttps://ronutz.com/api/v1/unicode-inspectorDocumented, not served. Opens the specification.

Unicode inspector

What was found

The text, with every hidden character shown

Every code point

Cleaned copy

Write the text as escapes

Referencias

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