diff --git a/src/tools/bip39-generator/bip39-generator.vue b/src/tools/bip39-generator/bip39-generator.vue
index 93f6add..54e8bc2 100644
--- a/src/tools/bip39-generator/bip39-generator.vue
+++ b/src/tools/bip39-generator/bip39-generator.vue
@@ -60,6 +60,7 @@
 <script setup lang="ts">
 import { useCopy } from '@/composable/copy';
 import { useValidation } from '@/composable/validation';
+import { withDefaultOnError } from '@/utils/defaults';
 import {
   chineseSimplifiedWordList,
   chineseTraditionalWordList,
@@ -105,12 +106,7 @@ const passphrase = computed({
   },
   set(value: string) {
     passphraseInput.value = value;
-
-    try {
-      entropy.value = mnemonicToEntropy(value, languages[language.value]);
-    } catch (_) {
-      entropy.value = '';
-    }
+    entropy.value = withDefaultOnError(() => mnemonicToEntropy(value, languages[language.value]), '');
   },
 });
 
diff --git a/src/tools/math-evaluator/math-evaluator.vue b/src/tools/math-evaluator/math-evaluator.vue
index 26fb6b1..59754de 100644
--- a/src/tools/math-evaluator/math-evaluator.vue
+++ b/src/tools/math-evaluator/math-evaluator.vue
@@ -21,18 +21,13 @@
 </template>
 
 <script setup lang="ts">
+import { withDefaultOnError } from '@/utils/defaults';
 import { evaluate } from 'mathjs';
 import { computed, ref } from 'vue';
 
 const expression = ref('');
 
-const result = computed(() => {
-  try {
-    return evaluate(expression.value) ?? '';
-  } catch (_) {
-    return '';
-  }
-});
+const result = computed(() => withDefaultOnError(() => evaluate(expression.value) ?? '', ''));
 </script>
 
 <style lang="less" scoped></style>
diff --git a/src/tools/url-encoder/url-encoder.vue b/src/tools/url-encoder/url-encoder.vue
index 5615791..d48b715 100644
--- a/src/tools/url-encoder/url-encoder.vue
+++ b/src/tools/url-encoder/url-encoder.vue
@@ -60,16 +60,11 @@
 <script setup lang="ts">
 import { useCopy } from '@/composable/copy';
 import { useValidation } from '@/composable/validation';
+import { withDefaultOnError } from '@/utils/defaults';
 import { computed, ref } from 'vue';
 
 const encodeInput = ref('Hello world :)');
-const encodeOutput = computed(() => {
-  try {
-    return encodeURIComponent(encodeInput.value);
-  } catch (_) {
-    return '';
-  }
-});
+const encodeOutput = computed(() => withDefaultOnError(() => encodeURIComponent(encodeInput.value), ''));
 
 const encodedValidation = useValidation({
   source: encodeInput,
@@ -91,14 +86,7 @@ const encodedValidation = useValidation({
 const { copy: copyEncoded } = useCopy({ source: encodeOutput, text: 'Encoded string copied to the clipboard' });
 
 const decodeInput = ref('Hello%20world%20%3A)');
-
-const decodeOutput = computed(() => {
-  try {
-    return decodeURIComponent(decodeInput.value);
-  } catch (_) {
-    return '';
-  }
-});
+const decodeOutput = computed(() => withDefaultOnError(() => decodeURIComponent(decodeInput.value), ''));
 
 const decodeValidation = useValidation({
   source: encodeInput,
diff --git a/src/tools/url-parser/url-parser.vue b/src/tools/url-parser/url-parser.vue
index 1978e14..78b732a 100644
--- a/src/tools/url-parser/url-parser.vue
+++ b/src/tools/url-parser/url-parser.vue
@@ -30,16 +30,12 @@
 import { computed, ref } from 'vue';
 import { SubdirectoryArrowRightRound } from '@vicons/material';
 import { useValidation } from '@/composable/validation';
+import { withDefaultOnError } from '@/utils/defaults';
 import InputCopyable from '../../components/InputCopyable.vue';
 
 const urlToParse = ref('https://me:pwd@it-tools.tech:3000/url-parser?key1=value&key2=value2#the-hash');
-const urlParsed = computed<URL | undefined>(() => {
-  try {
-    return new URL(urlToParse.value);
-  } catch (_) {
-    return undefined;
-  }
-});
+
+const urlParsed = computed(() => withDefaultOnError(() => new URL(urlToParse.value), undefined));
 const validation = useValidation({
   source: urlToParse,
   rules: [