diff --git a/src/tools/index.ts b/src/tools/index.ts
index b4c161ef8..5f5d1fb26 100644
--- a/src/tools/index.ts
+++ b/src/tools/index.ts
@@ -2,6 +2,7 @@ import { tool as base64FileConverter } from './base64-file-converter';
 import { tool as base64StringConverter } from './base64-string-converter';
 import { tool as basicAuthGenerator } from './basic-auth-generator';
 import { tool as emailNormalizer } from './email-normalizer';
+import { tool as jsonSizeAnalyzer } from './json-size-analyzer';
 
 import { tool as asciiTextDrawer } from './ascii-text-drawer';
 
@@ -147,6 +148,7 @@ export const toolsByCategory: ToolCategory[] = [
       crontabGenerator,
       jsonViewer,
       jsonMinify,
+      jsonSizeAnalyzer,
       jsonToCsv,
       sqlPrettify,
       chmodCalculator,
diff --git a/src/tools/json-size-analyzer/index.ts b/src/tools/json-size-analyzer/index.ts
new file mode 100644
index 000000000..2e11977db
--- /dev/null
+++ b/src/tools/json-size-analyzer/index.ts
@@ -0,0 +1,12 @@
+import { FileAnalytics } from '@vicons/tabler';
+import { defineTool } from '../tool';
+
+export const tool = defineTool({
+  name: 'Json Size Analyzer',
+  path: '/json-size-analyzer',
+  description: 'Measure JSON nodes relative weights',
+  keywords: ['json', 'size', 'analyzer'],
+  component: () => import('./json-size-analyzer.vue'),
+  icon: FileAnalytics,
+  createdAt: new Date('2024-07-14'),
+});
diff --git a/src/tools/json-size-analyzer/json-size-analyzer.service.test.ts b/src/tools/json-size-analyzer/json-size-analyzer.service.test.ts
new file mode 100644
index 000000000..dd2a9e2da
--- /dev/null
+++ b/src/tools/json-size-analyzer/json-size-analyzer.service.test.ts
@@ -0,0 +1,113 @@
+import { describe, expect, it } from 'vitest';
+import { getJsonUsageTreeNodes } from './json-size-analyzer.service';
+
+describe('json-size-analyzer', () => {
+  describe('getJsonUsageTreeNodes', () => {
+    it('return correct tree nodes structures', () => {
+      expect(getJsonUsageTreeNodes([{ a: [1, 2, 3] }, { b: 'a' }])).to.deep.eq({
+        children: [
+          {
+            children: [
+              {
+                children: [
+                  {
+                    children: [],
+                    key: '$.[0].a.[0]',
+                    label: '$.[0].a.[0]: 1 B(26 B gzip)',
+                  },
+                  {
+                    children: [],
+                    key: '$.[0].a.[1]',
+                    label: '$.[0].a.[1]: 1 B(24 B gzip)',
+                  },
+                  {
+                    children: [],
+                    key: '$.[0].a.[2]',
+                    label: '$.[0].a.[2]: 1 B(25 B gzip)',
+                  },
+                ],
+                key: '$.[0].a',
+                label: '$.[0].a: 7 B(35 B gzip) ; 28.000% of parent ; biggest child node: \'0\'',
+              },
+            ],
+            key: '$.[0]',
+            label: '$.[0]: 13 B(43 B gzip) ; 52.000% of parent ; biggest child node: \'a\'',
+          },
+          {
+            children: [
+              {
+                children: [],
+                key: '$.[1].b',
+                label: '$.[1].b: 1 B(25 B gzip)',
+              },
+            ],
+            key: '$.[1]',
+            label: '$.[1]: 9 B(34 B gzip) ; 36.000% of parent ; biggest child node: \'b\'',
+          },
+        ],
+        key: '$',
+        label: '$: 25 B(61 B gzip) ; 100.00% of parent ; biggest child node: \'0\'',
+      });
+      expect(getJsonUsageTreeNodes({ a: { b: [1, 2, 3], c: 12 } })).to.deep.eq({
+        children: [
+          {
+            children: [
+              {
+                children: [
+                  {
+                    children: [],
+                    key: '$.a.b.[0]',
+                    label: '$.a.b.[0]: 1 B(26 B gzip)',
+                  },
+                  {
+                    children: [],
+                    key: '$.a.b.[1]',
+                    label: '$.a.b.[1]: 1 B(24 B gzip)',
+                  },
+                  {
+                    children: [],
+                    key: '$.a.b.[2]',
+                    label: '$.a.b.[2]: 1 B(25 B gzip)',
+                  },
+                ],
+                key: '$.a.b',
+                label: '$.a.b: 7 B(35 B gzip) ; 26.923% of parent ; biggest child node: \'0\'',
+              },
+              {
+                children: [],
+                key: '$.a.c',
+                label: '$.a.c: 2 B(24 B gzip)',
+              },
+            ],
+            key: '$.a',
+            label: '$.a: 20 B(50 B gzip) ; 76.923% of parent ; biggest child node: \'b\'',
+          },
+        ],
+        key: '$',
+        label: '$: 26 B(63 B gzip) ; 100.00% of parent ; biggest child node: \'a\'',
+      });
+      expect(getJsonUsageTreeNodes({ a: { b: 'azerty', c: 'ueop' } })).to.deep.eq({
+        children: [
+          {
+            children: [
+              {
+                children: [],
+                key: '$.a.b',
+                label: '$.a.b: 6 B(30 B gzip)',
+              },
+              {
+                children: [],
+                key: '$.a.c',
+                label: '$.a.c: 4 B(29 B gzip)',
+              },
+            ],
+            key: '$.a',
+            label: '$.a: 25 B(51 B gzip) ; 80.645% of parent ; biggest child node: \'b\'',
+          },
+        ],
+        key: '$',
+        label: '$: 31 B(61 B gzip) ; 100.00% of parent ; biggest child node: \'a\'',
+      });
+    });
+  });
+});
diff --git a/src/tools/json-size-analyzer/json-size-analyzer.service.ts b/src/tools/json-size-analyzer/json-size-analyzer.service.ts
new file mode 100644
index 000000000..36a8890e1
--- /dev/null
+++ b/src/tools/json-size-analyzer/json-size-analyzer.service.ts
@@ -0,0 +1,49 @@
+import jsonAnalyzer from 'json-analyzer';
+
+export interface Meta {
+  __meta__: {
+    size?: {
+      value: number
+      raw: string
+      gzip: string
+    }
+    number_of_childs?: number
+    parent_relative_percentage?: string
+    biggest_node_child: string
+  }
+}
+export type AnalysisNode = {
+  [key: string]: object & Meta
+} & Meta;
+
+export type TreeNode = {
+  key: string
+  label: string
+  children: Array<TreeNode>
+} & Record<string, unknown>;
+
+function getTreeNodes(obj: AnalysisNode, parentName: string): TreeNode {
+  const childNodes = Object.entries(obj)
+    .filter(([key, v]) => key !== '__meta__' && typeof v === 'object')
+    .map(([k, v]) => ({
+      key: (Number.isNaN(Number.parseInt(k, 10)) ? `.${k}` : `.[${k}]`),
+      value: v as AnalysisNode,
+    }));
+  return {
+    key: parentName,
+    label: obj.__meta__
+      ? `${parentName}: ${obj.__meta__.size?.raw}(${obj.__meta__.size?.gzip} gzip)${obj.__meta__.parent_relative_percentage ? ` ; ${obj.__meta__.parent_relative_percentage} of parent` : ''}${obj.__meta__.biggest_node_child ? ` ; biggest child node: '${obj.__meta__.biggest_node_child}'` : ''}`
+      : parentName,
+    children: childNodes.map(childNode => getTreeNodes(childNode.value, parentName + childNode.key)),
+  };
+}
+
+export function getJsonUsageTreeNodes(jsonObj: any, maxDepth: number = 100, targetNode: string = ''): TreeNode {
+  const analysis = jsonAnalyzer({
+    json: jsonObj,
+    verbose: true,
+    maxDepth,
+    target: targetNode,
+  });
+  return getTreeNodes(analysis, '$');
+}
diff --git a/src/tools/json-size-analyzer/json-size-analyzer.vue b/src/tools/json-size-analyzer/json-size-analyzer.vue
new file mode 100644
index 000000000..b5e873b90
--- /dev/null
+++ b/src/tools/json-size-analyzer/json-size-analyzer.vue
@@ -0,0 +1,67 @@
+<script setup lang="ts">
+import JSON5 from 'json5';
+import { getJsonUsageTreeNodes } from './json-size-analyzer.service';
+import { useValidation } from '@/composable/validation';
+
+const json = ref('{"a": 1, "b": [1,2,3]}');
+const maxDepth = ref(100);
+const target = ref('');
+
+const jsonSizes = computed(() => {
+  const jsonObj = JSON5.parse(json.value);
+  if (!jsonObj) {
+    return null;
+  }
+  return [getJsonUsageTreeNodes(jsonObj, maxDepth.value - 1, target.value)];
+});
+const searchInAnalysis = ref('');
+
+const jsonValidation = useValidation({
+  source: json,
+  rules: [
+    {
+      validator: (v) => {
+        return JSON5.parse(v);
+      },
+      message: 'Provided JSON is not valid.',
+    },
+  ],
+});
+</script>
+
+<template>
+  <div style="max-width: 600px;">
+    <c-card title="Input" mb-2>
+      <c-input-text
+        v-model:value="json"
+        label="JSON"
+        multiline
+        placeholder="Put your JSON data here..."
+        rows="5"
+        :validation="jsonValidation"
+        mb-2
+      />
+
+      <n-form-item label="Max Depth:" label-placement="left">
+        <n-input-number v-model:value="maxDepth" :min="0" w-full />
+      </n-form-item>
+
+      <c-input-text
+        v-model:value="target"
+        label="Target Node"
+        placeholder="Where to start the analyze (ie, a[0].b.c)"
+        mb-2
+      />
+    </c-card>
+
+    <c-card v-if="jsonSizes" title="Analysis">
+      <n-input v-model:value="searchInAnalysis" placeholder="Search in result" />
+      <n-tree
+        :show-irrelevant-nodes="false"
+        :pattern="searchInAnalysis"
+        :data="jsonSizes"
+        block-line
+      />
+    </c-card>
+  </div>
+</template>