Zero-width character test

Below are several zero-width Unicode characters, placed between underscores. Can your browser display them? Your text editor? Your terminal? To understand why not being able to display them might be a problem, read Tracking via pasted text or about the Trojan Source vulnerability.

This page also contains unassigned code points and various control characters which certain programs render as zero-width even though they shouldn't.

As a point of reference, here are a few positive-width characters:

0020: _ _ | 00E9: _é_ | 03A9: _Ω_ | 5B57: _字_ | 1F407: _🐇_

Zero-width characters

 00AD: _­_ soft hyphen

 034F: _͏_ combining grapheme joiner

 061C: _؜_ Arabic letter mark

 070F: _܏_ Syriac abbreviation mark

 115F: _ᅟ_ Hangul choseong filler
 1160: _ᅠ_ Hangul jungseong filler

 17B4: _឴_ Khmer vowel inherent aq
 17B5: _឵_ Khmer vowel inherent aa

 180B: _᠋_ Mongolian free variation selector one (FVS1)
 180C: _᠌_ Mongolian free variation selector two (FVS2)
 180D: _᠍_ Mongolian free variation selector three (FVS3)
 180E: _᠎_ Mongolian vowel separator
 180F: _᠏_ Mongolian free variation selector four (FVS4)

 200B: _​_ zero width space
 200C: _‌_ zero width non-joiner
 200D: _‍_ zero width joiner
 200E: _‎_ left-to-right mark
 200F: _‏_ right-to-left mark

 2028: _
_ line separator
 2029: _
_ paragraph separator

 202A: _‪_ left-to-right embedding
 202B: _‫_ right-to-left embedding
 202C: _‬_ pop directional formatting
 202D: _‭_ left-to-right override
 202E: _‮_ right-to-left override

 2060: _⁠_ word joiner
 2061: _⁡_ function application
 2062: _⁢_ invisible times
 2063: _⁣_ invisible separator
 2064: _⁤_ invisible plus
 2065: _⁥_ unassigned
 2066: _⁦_ left-to-right isolate
 2067: _⁧_ right-to-left isolate
 2068: _⁨_ first strong isolate
 2069: _⁩_ pop directional isolate
 206A: __ inhibit symmetric swapping (deprecated)
 206B: __ activate symmetric swapping (deprecated)
 206C: __ inhibit arabic form shaping (deprecated)
 206D: __ activate arabic form shaping (deprecated)
 206E: __ national digit shapes (deprecated)
 206F: __ nominal digit shapes (deprecated)

 3164: _ㅤ_ Hangul filler

 FE00: _︀_ variation selector-1 (VS1)
 FE01: _︁_ variation selector-2 (VS2)
 FE02: _︂_ variation selector-3 (VS3)
 FE03: _︃_ variation selector-4 (VS4)
 FE04: _︄_ variation selector-5 (VS5)
 FE05: _︅_ variation selector-6 (VS6)
 FE06: _︆_ variation selector-7 (VS7)
 FE07: _︇_ variation selector-8 (VS8)
 FE08: _︈_ variation selector-9 (VS9)
 FE09: _︉_ variation selector-10 (VS10)
 FE0A: _︊_ variation selector-11 (VS11)
 FE0B: _︋_ variation selector-12 (VS12)
 FE0C: _︌_ variation selector-13 (VS13)
 FE0D: _︍_ variation selector-14 (VS14)
 FE0E: _︎_ variation selector-15 (VS15)
 FE0F: _️_ variation selector-16 (VS16)

 FEFF: __ zero width no-break space

 FFA0: _ﾠ_ halfwidth Hangul filler

 FFF0: _￰_ unassigned
 FFF1: _￱_ unassigned
 FFF2: _￲_ unassigned
 FFF3: _￳_ unassigned
 FFF4: _￴_ unassigned
 FFF5: _￵_ unassigned
 FFF6: _￶_ unassigned
 FFF7: _￷_ unassigned
 FFF8: _￸_ unassigned
 FFF9: __ interlinear annotation anchor
 FFFA: __ interlinear annotation separator
 FFFB: __ interlinear annotation terminator
 FFFC: __ object replacement character

 FFFE: _￾_ <not a character>
 FFFF: _￿_ <not a character>

13430: _𓐰_ Egyptian hieroglyph vertical joiner
13431: _𓐱_ Egyptian hieroglyph horizontal joiner
13432: _𓐲_ Egyptian hieroglyph insert at top start
13433: _𓐳_ Egyptian hieroglyph insert at bottom start
13434: _𓐴_ Egyptian hieroglyph insert at top end
13435: _𓐵_ Egyptian hieroglyph insert at bottom end
13436: _𓐶_ Egyptian hieroglyph overlay middle
13437: _𓐷_ Egyptian hieroglyph begin segment
13438: _𓐸_ Egyptian hieroglyph end segment
13439: _𓐹_ Egyptian hieroglyph insert at middle
1343A: _𓐺_ Egyptian hieroglyph insert at top
1343B: _𓐻_ Egyptian hieroglyph insert at bottom
1343C: _𓐼_ Egyptian hieroglyph begin enclosure
1343D: _𓐽_ Egyptian hieroglyph end enclosure
1343E: _𓐾_ Egyptian hieroglyph begin walled enclosure
1343F: _𓐿_ Egyptian hieroglyph end walled enclosure

1BCA0: _𛲠_ shorthand format letter overlap
1BCA1: _𛲡_ shorthand format continuing overlap
1BCA2: _𛲢_ shorthand format down step
1BCA3: _𛲣_ shorthand format up step

1D159: _𝅙_ musical symbol null notehead
1D173: _𝅳_ musical symbol begin beam
1D174: _𝅴_ musical symbol end beam
1D175: _𝅵_ musical symbol begin tie
1D176: _𝅶_ musical symbol end tie
1D177: _𝅷_ musical symbol begin slur
1D178: _𝅸_ musical symbol end slur
1D179: _𝅹_ musical symbol begin phrase
1D17A: _𝅺_ musical symbol end phrase

E0000: _󠀀_ unassigned
E0001: _󠀁_ language tag (deprecated)
E0002: _󠀂_ unassigned
... (E0002-E0019 unassigned)
E0019: _󠀙_ unassigned
E0020: _󠀠_ tag space
... (E0020-E007F formerly used for tagging texts by language)
E007F: _󠁿_ cancel tag
E0080: _󠂀_ unassigned
... (E0080-E00FF unassigned)
E00FF: _󠃿_ unassigned
E0100: _󠄀_ variation selector 17
... (E0100-E01EF: variation selectors supplement)
E01EF: _󠇯_ variation selector 256
E01F0: _󠇰_ unassigned
... (E01F0-E0FFF unassigned)
E0FFF: _󠿿_ unassigned

EFFFD: _󯿽_ unassigned
EFFFE: _󯿾_ <not a character>
EFFFF: _󯿿_ <not a character>

10FFFD: _􏿽_ unassigned (private use)
10FFFE: _􏿾_ <not a character>
10FFFF: _􏿿_ <not a character>

Not included: samples from unassigned ranges *FF80-*FFFF, with the exception of EFF80-EFFFF, a sample of which is included.

ASCII control codes

00: __ null
01: __ start of heading
02: __ start of text
03: __ end of text
04: __ end of transmission
05: __ enquiry
06: __ acknowledge
07: __ bell
08: __ backspace

0B: __ line tabulation (vertical tabulation)
0C: __ form feed

0E: __ shift out
0F: __ shift in
10: __ data link escape
11: __ device control one
12: __ device control two
13: __ device control three
14: __ device control four
15: __ negative acknowledge
16: __ synchronous idle
17: __ end of transmission block
18: __ cancel
19: __ end of medium
1A: __ substitute
1B: __ escape
1C: __ information separator four (file separator)
1D: __ information separator three (group separator)
1E: __ information separator two (record separator)
1F: __ information separator one (unit separator)

7F: __ delete
80: _€_
81: __
82: _‚_ break permitted here
83: _ƒ_ no break here
84: _„_ formerly known as "index"
85: _…_ next line
86: _†_ start of selected area
87: _‡_ end of selected area
88: _ˆ_ character tabulation set
89: _‰_ character tabulation with justification
8A: _Š_ line tabulation set
8B: _‹_ partial line forward
8C: _Œ_ partial line backward
8D: __ reverse line feed
8E: _Ž_ single shift two
8F: __ single shift three
90: __ device control string
91: _‘_ private use one
92: _’_ private use two
93: _“_ set transmit state
94: _”_ cancel character
95: _•_ message waiting
96: _–_ start of guarded area
97: _—_ end of guarded area
98: _˜_ start of string
99: _™_
9A: _š_ single character introducer
9B: _›_ control sequence introducer
9C: _œ_ string terminator
9D: __ operating system command
9E: _ž_ privacy message
9F: _Ÿ_ application program command

Thin space characters

For more details about each character, consult the Unicode Character Properties utility or the Unicode Character Name Index.

Since September 2023, Unicode is at version 15.1 and contains 149,813 characters.

Programs which pass the test

Programs whitch almost pass the test

Contact me if you know of any other characters or programs that should be listed here.

This test is also available as a plain .txt file.