diff --git a/forms/AbiDecodeForm.vue b/forms/AbiDecodeForm.vue
index e30b574..c233368 100644
--- a/forms/AbiDecodeForm.vue
+++ b/forms/AbiDecodeForm.vue
@@ -67,12 +67,7 @@
                 :readonly="form.decodeMode === DECODE_MODES.auto"
                 :label="$t('abi-decode-form.arg-type-label')"
                 :placeholder="$t('abi-decode-form.arg-type-placeholder')"
-                :options="
-                  Object.values(ETHEREUM_TYPES).map(v => ({
-                    value: v,
-                    title: v,
-                  }))
-                "
+                :options="TYPE_OPTIONS"
                 :error-message="getFieldErrorMessage(`args[${idx}].type`)"
                 @blur="touchField('args')"
               />
@@ -174,7 +169,7 @@ import { type ArrayElement, type FieldOption } from '@/types'
 import { fetcher } from '@distributedlab/fetcher'
 import { guessAbiEncodedData, guessFragment } from '@openchainxyz/abi-guesser'
 import { AbiCoder, FunctionFragment, ParamType } from 'ethers'
-import { debounce } from 'lodash-es'
+import { debounce, without } from 'lodash-es'
 import { v4 as uuidv4 } from 'uuid'
 import { computed, reactive, ref, watch } from 'vue'
 import { i18n } from '~/plugins/localization'
@@ -196,6 +191,15 @@ enum DECODE_MODES {
   manual = 'manual',
 }
 
+const TYPE_OPTIONS: FieldOption[] = without(
+  Object.values(ETHEREUM_TYPES),
+  ETHEREUM_TYPES.uint,
+  ETHEREUM_TYPES.uintArray,
+).map(v => ({
+  value: v,
+  title: v,
+}))
+
 defineProps<{
   title: string
 }>()
diff --git a/forms/AbiEncodeForm.vue b/forms/AbiEncodeForm.vue
index 0ac5f0c..f51d6e8 100644
--- a/forms/AbiEncodeForm.vue
+++ b/forms/AbiEncodeForm.vue
@@ -19,9 +19,7 @@
             v-model="arg.type"
             :label="$t('abi-encode-form.arg-type-label')"
             :placeholder="$t('abi-encode-form.arg-type-placeholder')"
-            :options="
-              Object.values(ETHEREUM_TYPES).map(v => ({ value: v, title: v }))
-            "
+            :options="TYPE_OPTIONS"
             :error-message="getFieldErrorMessage(`args[${idx}].type`)"
             @blur="touchField(`args[${idx}].type`)"
           />
@@ -111,11 +109,21 @@ import {
   required,
   withinSizeOfEthereumType,
 } from '@/helpers'
-import { type AbiEncodeForm } from '@/types'
+import { type AbiEncodeForm, type FieldOption } from '@/types'
 import { Interface, ParamType } from 'ethers'
+import { without } from 'lodash-es'
 import { v4 as uuidv4 } from 'uuid'
 import { computed, reactive, ref, watch } from 'vue'
 
+const TYPE_OPTIONS: FieldOption[] = without(
+  Object.values(ETHEREUM_TYPES),
+  ETHEREUM_TYPES.uint,
+  ETHEREUM_TYPES.uintArray,
+).map(v => ({
+  value: v,
+  title: v,
+}))
+
 defineProps<{
   title: string
 }>()
diff --git a/helpers/abi-encode-form.helpers.ts b/helpers/abi-encode-form.helpers.ts
index c6edf5b..afc618f 100644
--- a/helpers/abi-encode-form.helpers.ts
+++ b/helpers/abi-encode-form.helpers.ts
@@ -124,7 +124,12 @@ export function withinSizeOfEthereumType(): ValidationRule {
     $validator: (_, arg: AbiEncodeForm.FuncArg) => {
       _baseType = arg.type.replace(/\d+/, '')
 
-      if (_baseType === arg.type) return true
+      const isUintBaseType = [
+        ETHEREUM_TYPES.uint,
+        ETHEREUM_TYPES.uintArray,
+      ].includes(_baseType as ETHEREUM_TYPES)
+
+      if (_baseType === arg.type && !isUintBaseType) return true
 
       const isArray = arg.type.includes('[]')
       const matchArray = arg.type.match(/\d+/)
@@ -137,7 +142,10 @@ export function withinSizeOfEthereumType(): ValidationRule {
               case ETHEREUM_TYPES.bytesArray:
                 return checkBytesAmount(v as BytesLike, sizeOfType)
               case ETHEREUM_TYPES.uintArray:
-                return checkUintIsWithinRange(v as BigNumber.Value, sizeOfType)
+                return checkUintIsWithinRange(
+                  v as BigNumber.Value,
+                  sizeOfType || 256,
+                )
               default:
                 return true
             }
@@ -151,7 +159,7 @@ export function withinSizeOfEthereumType(): ValidationRule {
         case ETHEREUM_TYPES.bytes:
           return checkBytesAmount(arg.value, sizeOfType)
         case ETHEREUM_TYPES.uint:
-          return checkUintIsWithinRange(arg.value, sizeOfType)
+          return checkUintIsWithinRange(arg.value, sizeOfType || 256)
         default:
           return true
       }
diff --git a/helpers/type.helpers.ts b/helpers/type.helpers.ts
index 0f7a0ca..b07f776 100644
--- a/helpers/type.helpers.ts
+++ b/helpers/type.helpers.ts
@@ -64,6 +64,8 @@ export function checkIsStringArrayJsonString(value: unknown): boolean {
 }
 
 export function checkIsUintLike(value: unknown): boolean {
+  if (typeof value === 'string' && value.includes('e')) return false
+
   const bigNumber = BigNumber(value as BigNumber.Value)
   return bigNumber.isPositive() && bigNumber.isFinite()
 }