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ASCII Converter

Convert text ⇄ ASCII codes in decimal or hexadecimal.

Extended ASCII Table (0–255)

Code (Dec/Hex)CharacterCode (Dec/Hex)CharacterCode (Dec/Hex)Character
0 / 0x00NUL1 / 0x01SOH2 / 0x02STX
3 / 0x03ETX4 / 0x04EOT5 / 0x05ENQ
6 / 0x06ACK7 / 0x07BEL8 / 0x08BS
9 / 0x09TAB10 / 0x0ALF11 / 0x0BVT
12 / 0x0CFF13 / 0x0DCR14 / 0x0ESO
15 / 0x0FSI16 / 0x10DLE17 / 0x11DC1
18 / 0x12DC219 / 0x13DC320 / 0x14DC4
21 / 0x15NAK22 / 0x16SYN23 / 0x17ETB
24 / 0x18CAN25 / 0x19EM26 / 0x1ASUB
27 / 0x1BESC28 / 0x1CFS29 / 0x1DGS
30 / 0x1ERS31 / 0x1FUS32 / 0x20␣
33 / 0x21!34 / 0x22"35 / 0x23#
36 / 0x24$37 / 0x25%38 / 0x26&
39 / 0x27'40 / 0x28(41 / 0x29)
42 / 0x2A*43 / 0x2B+44 / 0x2C,
45 / 0x2D-46 / 0x2E.47 / 0x2F/
48 / 0x30049 / 0x31150 / 0x322
51 / 0x33352 / 0x34453 / 0x355
54 / 0x36655 / 0x37756 / 0x388
57 / 0x39958 / 0x3A:59 / 0x3B;
60 / 0x3C<61 / 0x3D=62 / 0x3E>
63 / 0x3F?64 / 0x40@65 / 0x41A
66 / 0x42B67 / 0x43C68 / 0x44D
69 / 0x45E70 / 0x46F71 / 0x47G
72 / 0x48H73 / 0x49I74 / 0x4AJ
75 / 0x4BK76 / 0x4CL77 / 0x4DM
78 / 0x4EN79 / 0x4FO80 / 0x50P
81 / 0x51Q82 / 0x52R83 / 0x53S
84 / 0x54T85 / 0x55U86 / 0x56V
87 / 0x57W88 / 0x58X89 / 0x59Y
90 / 0x5AZ91 / 0x5B[92 / 0x5C\
93 / 0x5D]94 / 0x5E^95 / 0x5F_
96 / 0x60`97 / 0x61a98 / 0x62b
99 / 0x63c100 / 0x64d101 / 0x65e
102 / 0x66f103 / 0x67g104 / 0x68h
105 / 0x69i106 / 0x6Aj107 / 0x6Bk
108 / 0x6Cl109 / 0x6Dm110 / 0x6En
111 / 0x6Fo112 / 0x70p113 / 0x71q
114 / 0x72r115 / 0x73s116 / 0x74t
117 / 0x75u118 / 0x76v119 / 0x77w
120 / 0x78x121 / 0x79y122 / 0x7Az
123 / 0x7B{124 / 0x7C|125 / 0x7D}
126 / 0x7E~127 / 0x7FDEL128 / 0x80€
129 / 0x81130 / 0x82‚131 / 0x83ƒ
132 / 0x84„133 / 0x85…134 / 0x86†
135 / 0x87‡136 / 0x88ˆ137 / 0x89‰
138 / 0x8AŠ139 / 0x8B‹140 / 0x8CŒ
141 / 0x8D142 / 0x8EŽ143 / 0x8F
144 / 0x90145 / 0x91‘146 / 0x92’
147 / 0x93“148 / 0x94”149 / 0x95•
150 / 0x96–151 / 0x97—152 / 0x98˜
153 / 0x99™154 / 0x9Aš155 / 0x9B›
156 / 0x9Cœ157 / 0x9D158 / 0x9Ež
159 / 0x9FŸ160 / 0xA0 161 / 0xA1¡
162 / 0xA2¢163 / 0xA3£164 / 0xA4¤
165 / 0xA5¥166 / 0xA6¦167 / 0xA7§
168 / 0xA8¨169 / 0xA9©170 / 0xAAª
171 / 0xAB«172 / 0xAC¬173 / 0xAD­
174 / 0xAE®175 / 0xAF¯176 / 0xB0°
177 / 0xB1±178 / 0xB2²179 / 0xB3³
180 / 0xB4´181 / 0xB5µ182 / 0xB6
183 / 0xB7·184 / 0xB8¸185 / 0xB9¹
186 / 0xBAº187 / 0xBB»188 / 0xBC¼
189 / 0xBD½190 / 0xBE¾191 / 0xBF¿
192 / 0xC0À193 / 0xC1Á194 / 0xC2Â
195 / 0xC3Ã196 / 0xC4Ä197 / 0xC5Å
198 / 0xC6Æ199 / 0xC7Ç200 / 0xC8È
201 / 0xC9É202 / 0xCAÊ203 / 0xCBË
204 / 0xCCÌ205 / 0xCDÍ206 / 0xCEÎ
207 / 0xCFÏ208 / 0xD0Ð209 / 0xD1Ñ
210 / 0xD2Ò211 / 0xD3Ó212 / 0xD4Ô
213 / 0xD5Õ214 / 0xD6Ö215 / 0xD7×
216 / 0xD8Ø217 / 0xD9Ù218 / 0xDAÚ
219 / 0xDBÛ220 / 0xDCÜ221 / 0xDDÝ
222 / 0xDEÞ223 / 0xDFß224 / 0xE0à
225 / 0xE1á226 / 0xE2â227 / 0xE3ã
228 / 0xE4ä229 / 0xE5å230 / 0xE6æ
231 / 0xE7ç232 / 0xE8è233 / 0xE9é
234 / 0xEAê235 / 0xEBë236 / 0xECì
237 / 0xEDí238 / 0xEEî239 / 0xEFï
240 / 0xF0ð241 / 0xF1ñ242 / 0xF2ò
243 / 0xF3ó244 / 0xF4ô245 / 0xF5õ
246 / 0xF6ö247 / 0xF7÷248 / 0xF8ø
249 / 0xF9ù250 / 0xFAú251 / 0xFBû
252 / 0xFCü253 / 0xFDý254 / 0xFEþ
255 / 0xFFÿ

Frequently Asked Questions

What is ASCII?

ASCII (American Standard Code for Information Interchange) is a character encoding standard that assigns a unique numeric value to letters, numbers, punctuation marks, and control characters. It's fundamental for representing text in computers and digital communications.

Why is ASCII important?

ASCII provides a common standard for text representation, ensuring that text data can be reliably exchanged and understood between different computer systems and software applications, forming a basis for more complex encodings.

What is the difference between ASCII and Unicode (e.g., UTF-8)?

ASCII typically uses 7 or 8 bits and covers English characters and some symbols. Unicode (with UTF-8 as a common encoding) uses a variable number of bytes to represent a much larger set of characters from virtually all writing systems worldwide.

What are decimal and hexadecimal ASCII representations?

Decimal representation uses base-10 numbers (e.g., 'A' is 65). Hexadecimal uses base-16 (e.g., 'A' is 41). Both represent the same character; hex is often preferred by programmers for its conciseness with byte-oriented data.

What is Extended ASCII?

Standard ASCII uses 7 bits for 128 characters. Extended ASCII uses 8 bits, allowing for 256 characters, including additional symbols, accented letters, and graphical characters. However, the specific characters in the extended range (128-255) can vary between systems.

How is ASCII used in programming and data transmission?

ASCII is used to represent source code, configuration files, plain text documents, and in communication protocols where simple text exchange is required. It's a basic building block for many digital systems.

Can ASCII represent characters from all languages?

No, standard ASCII is primarily designed for the English alphabet. While Extended ASCII adds some characters, it's insufficient for most non-English languages, for which Unicode encodings like UTF-8 are used.

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