diff --git a/automation/dict_manifest_config.yaml b/automation/dict_manifest_config.yaml
index 18bab24..88367b5 100644
--- a/automation/dict_manifest_config.yaml
+++ b/automation/dict_manifest_config.yaml
@@ -149,6 +149,16 @@ languages:
       - name: encoding
         path: cp866u.toml
 
+  - language: Việt
+    code: vi
+    files:
+      - name: csv
+        path: Vietnamese/dfint_dictionary.csv
+      - name: font
+        path: viscii.png
+      - name: encoding
+        path: viscii.toml
+
   - language: Japanese (Romaji)
     code: ja
     files:
diff --git a/store/encodings/viscii.toml b/store/encodings/viscii.toml
new file mode 100644
index 0000000..43117bf
--- /dev/null
+++ b/store/encodings/viscii.toml
@@ -0,0 +1,205 @@
+[metadata]
+encoding = "viscii"
+
+[maps.capitalize]
+"97:122" = -32 # a-z -> A-Z
+"161:178" = -32 # ắ-ỗ -> Ắ-Ỗ
+181 = -34 # ộ -> Ộ
+"182:184" = -32 # ờ-ị -> Ờ-Ị
+189 = -9 # ơ -> Ơ
+190 = -41 # ớ -> Ớ
+198 = -196 # ẳ -> Ẳ
+199 = -194 # ẵ -> Ẵ
+207 = -48 # ỳ -> Ỳ
+209 = -23 # ứ -> Ứ
+213 = -85 # ạ -> Ạ
+214 = -194 # ỷ -> Ỷ
+"215:216" = -28 # ừ-ử -> Ừ-Ử
+219 = -194 # ỹ -> Ỹ
+220 = -190 # ỵ -> Ỵ
+222 = -43 # ỡ -> Ỡ
+"223:229" = -32 # ư-ă -> Ư-Ă
+230 = 25 # ữ -> Ữ
+231 = -225 # ẫ -> Ẫ
+"232:238" = -32 # è-ĩ -> È-Ĩ
+239 = -84 # ỉ -> Ỉ
+240 = -32 # đ -> Đ
+241 = -56 # ự -> Ự
+"242:244" = -32 # ò-ô -> Ò-Ô
+245 = -85 # õ -> Õ
+"246:247" = -93 # ỏ-ọ -> Ỏ-Ọ
+248 = -90 # ụ -> Ụ
+"249:250" = -32 # ù-ú -> Ù-Ú
+"251:252" = -94 # ũ-ủ -> Ũ-Ủ
+253 = -32 # ý -> Ý
+254 = -106 # ợ -> Ợ
+
+[maps.lowercast]
+2 = 196 # Ẳ -> ẳ
+5 = 194 # Ẵ -> ẵ
+6 = 225 # Ẫ -> ẫ
+20 = 194 # Ỷ -> ỷ
+25 = 194 # Ỹ -> ỹ
+30 = 190 # Ỵ -> ỵ
+"65:90" = 32 # A-Z -> a-z
+128 = 85 # Ạ -> ạ
+"129:146" = 32 # Ắ-Ỗ -> ắ-ỗ
+147 = 34 # Ộ -> ộ
+148 = 106 # Ợ -> ợ
+149 = 41 # Ớ -> ớ
+"150:152" = 32 # Ờ-Ị -> ờ-ị
+"153:154" = 93 # Ỏ-Ọ -> ỏ-ọ
+155 = 84 # Ỉ -> ỉ
+"156:157" = 96 # Ủ-Ũ -> ủ-ũ
+158 = 90 # Ụ -> ụ
+159 = 48 # Ỳ -> ỳ
+160 = 85 # Õ -> õ
+179 = 43 # Ỡ -> ỡ
+180 = 9 # Ơ -> ơ
+185 = 56 # Ự -> ự
+186 = 23 # Ứ -> ứ
+"187:188" = 28 # Ừ-Ử -> ừ-ử
+"191:197" = 32 # Ư-Ă -> ư-ă
+"200:206" = 32 # È-Ĩ -> è-ĩ
+208 = 32 # Đ -> đ
+"210:212" = 32 # Ò-Ô -> ò-ô
+"217:218" = 32 # Ù-Ú -> ù-ú
+221 = 32 # Ý -> ý
+255 = -25 # Ữ -> ữ
+
+[maps.utf]
+10533601 = 128 # Ạ
+11451105 = 129 # Ắ
+11582177 = 130 # Ằ
+11975393 = 131 # Ặ
+10795745 = 132 # Ấ
+10926817 = 133 # Ầ
+11057889 = 134 # Ẩ
+11320033 = 135 # Ậ
+12368609 = 136 # Ẽ
+12106465 = 137 # Ẹ
+12499681 = 138 # Ế
+8436705 = 139 # Ề
+8567777 = 140 # Ể
+8698849 = 141 # Ễ
+8829921 = 142 # Ệ
+9485281 = 143 # Ố
+9616353 = 144 # Ồ
+9747425 = 145 # Ổ
+9878497 = 146 # Ỗ
+10009569 = 147 # Ộ
+10664929 = 148 # Ợ
+10140641 = 149 # Ớ
+10271713 = 150 # Ờ
+10402785 = 151 # Ở
+9092065 = 152 # Ị
+9354209 = 153 # Ỏ
+9223137 = 154 # Ọ
+8960993 = 155 # Ỉ
+10927073 = 156 # Ủ
+43205 = 157 # Ũ
+10796001 = 158 # Ụ
+11713505 = 159 # Ỳ
+38339 = 160 # Õ
+11516641 = 161 # ắ
+11647713 = 162 # ằ
+12040929 = 163 # ặ
+10861281 = 164 # ấ
+10992353 = 165 # ầ
+11123425 = 166 # ẩ
+11385569 = 167 # ậ
+12434145 = 168 # ẽ
+12172001 = 169 # ẹ
+12565217 = 170 # ế
+8502241 = 171 # ề
+8633313 = 172 # ể
+8764385 = 173 # ễ
+8895457 = 174 # ệ
+9550817 = 175 # ố
+9681889 = 176 # ồ
+9812961 = 177 # ổ
+9944033 = 178 # ỗ
+10533857 = 179 # Ỡ
+41158 = 180 # Ơ
+10075105 = 181 # ộ
+10337249 = 182 # ờ
+10468321 = 183 # ở
+9157601 = 184 # ị
+11582433 = 185 # Ự
+11058145 = 186 # Ứ
+11189217 = 187 # Ừ
+11320289 = 188 # Ử
+41414 = 189 # ơ
+10206177 = 190 # ớ
+44998 = 191 # Ư
+32963 = 192 # À
+33219 = 193 # Á
+33475 = 194 # Â
+33731 = 195 # Ã
+10664673 = 196 # Ả
+33476 = 197 # Ă
+11778785 = 198 # ẳ
+11909857 = 199 # ẵ
+35011 = 200 # È
+35267 = 201 # É
+35523 = 202 # Ê
+12237537 = 203 # Ẻ
+36035 = 204 # Ì
+36291 = 205 # Í
+43204 = 206 # Ĩ
+11779041 = 207 # ỳ
+37060 = 208 # Đ
+11123681 = 209 # ứ
+37571 = 210 # Ò
+37827 = 211 # Ó
+38083 = 212 # Ô
+10599137 = 213 # ạ
+12041185 = 214 # ỷ
+11254753 = 215 # ừ
+11385825 = 216 # ử
+39363 = 217 # Ù
+39619 = 218 # Ú
+12172257 = 219 # ỹ
+11910113 = 220 # ỵ
+40387 = 221 # Ý
+10599393 = 222 # ỡ
+45254 = 223 # ư
+41155 = 224 # à
+41411 = 225 # á
+41667 = 226 # â
+41923 = 227 # ã
+10730209 = 228 # ả
+33732 = 229 # ă
+11516897 = 230 # ữ
+11254497 = 231 # ẫ
+43203 = 232 # è
+43459 = 233 # é
+43715 = 234 # ê
+12303073 = 235 # ẻ
+44227 = 236 # ì
+44483 = 237 # í
+43460 = 238 # ĩ
+9026529 = 239 # ỉ
+37316 = 240 # đ
+11647969 = 241 # ự
+45763 = 242 # ò
+46019 = 243 # ó
+46275 = 244 # ô
+46531 = 245 # õ
+9419745 = 246 # ỏ
+9288673 = 247 # ọ
+10861537 = 248 # ụ
+47555 = 249 # ù
+47811 = 250 # ú
+43461 = 251 # ũ
+10992609 = 252 # ủ
+48579 = 253 # ý
+10730465 = 254 # ợ
+11451361 = 255 # Ữ
+
+[maps.uppercase]
+
+[maps.lowercase]
+
+[maps.simplify]
+
diff --git a/store/fonts/viscii.png b/store/fonts/viscii.png
new file mode 100644
index 0000000..31c2064
Binary files /dev/null and b/store/fonts/viscii.png differ