diff --git a/serializer/__tests__/serializer.test.ts b/serializer/__tests__/serializer.test.ts
new file mode 100644
index 0000000000..e14c32be86
--- /dev/null
+++ b/serializer/__tests__/serializer.test.ts
@@ -0,0 +1,369 @@
+import { describe, expect, test } from '@jest/globals';
+import { Serializer } from '../index';
+import { BlockConfig, BlockType } from '@/blocks/types/block';
+import { Node } from 'reactflow';
+import { SerializedWorkflow } from '../types';
+
+jest.mock('@/components/icons', () => ({
+  AgentIcon: jest.fn(),
+  ApiIcon: jest.fn(),
+  ConditionalIcon: jest.fn()
+}));
+
+import { AgentIcon, ApiIcon, ConditionalIcon } from '@/components/icons';
+
+describe('Serializer', () => {
+  const serializer = new Serializer();
+
+  test('should serialize an agent block correctly', () => {
+    const mockAgentBlock: Node<BlockConfig> = {
+      id: 'agent-1',
+      type: 'custom',
+      position: { x: 100, y: 200 },
+      data: {
+        type: 'agent',
+        toolbar: {
+          title: 'Agent',
+          description: 'Use any LLM',
+          bgColor: '#7F2FFF',
+          icon: AgentIcon,
+          category: 'basic',
+        },
+        workflow: {
+          inputs: {
+            prompt: 'string',
+            context: 'string'
+          },
+          outputs: {
+            response: 'string',
+            tokens: 'number'
+          },
+          subBlocks: [
+            {
+              title: 'System Prompt',
+              type: 'long-input',
+              layout: 'full',
+              placeholder: 'Enter prompt'
+            },
+            {
+              title: 'Model',
+              type: 'dropdown',
+              layout: 'half',
+              options: ['GPT-4o', 'Gemini 2.0']
+            }
+          ]
+        }
+      }
+    };
+
+    const serialized = serializer.serializeWorkflow([mockAgentBlock], []);
+    
+    // Check basic structure
+    expect(serialized.version).toBe('1.0');
+    expect(serialized.blocks).toHaveLength(1);
+    
+    const serializedBlock = serialized.blocks[0];
+    
+    // Check block properties
+    expect(serializedBlock.id).toBe('agent-1');
+    expect(serializedBlock.type).toBe('agent');
+    expect(serializedBlock.position).toEqual({ x: 100, y: 200 });
+    
+    // Check config
+    expect(serializedBlock.config.inputs).toEqual({
+      prompt: 'string',
+      context: 'string'
+    });
+    expect(serializedBlock.config.outputs).toEqual({
+      response: 'string',
+      tokens: 'number'
+    });
+    
+    // Check extracted values from subBlocks
+    expect(serializedBlock.config.system_prompt).toBe('');
+    expect(serializedBlock.config.model).toBe('GPT-4o');
+  });
+
+  test('should serialize an HTTP block correctly', () => {
+    const mockHttpBlock: Node<BlockConfig> = {
+      id: 'http-1',
+      type: 'custom',
+      position: { x: 150, y: 250 },
+      data: {
+        type: 'api' as BlockType,
+        toolbar: {
+          title: 'HTTP',
+          description: 'Make HTTP requests',
+          bgColor: '#FF4D4D',
+          icon: ApiIcon,
+          category: 'basic',
+        },
+        workflow: {
+          inputs: {
+            headers: 'object',
+            body: 'object'
+          },
+          outputs: {
+            response: 'object',
+            status: 'number'
+          },
+          subBlocks: [
+            {
+              title: 'URL',
+              type: 'short-input',
+              layout: 'full',
+              placeholder: 'Enter URL'
+            },
+            {
+              title: 'Method',
+              type: 'dropdown',
+              layout: 'half',
+              options: ['GET', 'POST', 'PUT', 'DELETE']
+            },
+            {
+              title: 'Headers',
+              type: 'code',
+              layout: 'full'
+            },
+            {
+              title: 'Body',
+              type: 'code',
+              layout: 'full'
+            }
+          ]
+        }
+      }
+    };
+
+    const serialized = serializer.serializeWorkflow([mockHttpBlock], []);
+    const serializedBlock = serialized.blocks[0];
+    
+    // Check block properties
+    expect(serializedBlock.id).toBe('http-1');
+    expect(serializedBlock.type).toBe('api');
+    expect(serializedBlock.position).toEqual({ x: 150, y: 250 });
+    
+    // Check config
+    expect(serializedBlock.config.inputs).toEqual({
+      headers: 'object',
+      body: 'object'
+    });
+    expect(serializedBlock.config.outputs).toEqual({
+      response: 'object',
+      status: 'number'
+    });
+    
+    // Check extracted values from subBlocks
+    expect(serializedBlock.config.url).toBe('');
+    expect(serializedBlock.config.method).toBe('GET');
+    expect(serializedBlock.config.headers).toBe('');
+    expect(serializedBlock.config.body).toBe('');
+  });
+
+  test('should serialize a conditional block correctly', () => {
+    const mockConditionBlock: Node<BlockConfig> = {
+      id: 'condition-1',
+      type: 'custom',
+      position: { x: 200, y: 300 },
+      data: {
+        type: 'conditional' as BlockType,
+        toolbar: {
+          title: 'Condition',
+          description: 'Branch based on condition',
+          bgColor: '#00B8D9',
+          icon: ConditionalIcon,
+          category: 'basic',
+        },
+        workflow: {
+          inputs: {
+            value: 'any'
+          },
+          outputs: {
+            result: 'boolean'
+          },
+          subBlocks: [
+            {
+              title: 'Condition',
+              type: 'code',
+              layout: 'full',
+              placeholder: 'Enter condition'
+            },
+            {
+              title: 'Operator',
+              type: 'dropdown',
+              layout: 'half',
+              options: ['equals', 'contains', 'greater than', 'less than']
+            },
+            {
+              title: 'Value',
+              type: 'short-input',
+              layout: 'half',
+              placeholder: 'Compare value'
+            }
+          ]
+        }
+      }
+    };
+
+    const serialized = serializer.serializeWorkflow([mockConditionBlock], []);
+    const serializedBlock = serialized.blocks[0];
+    
+    // Check block properties
+    expect(serializedBlock.id).toBe('condition-1');
+    expect(serializedBlock.type).toBe('conditional');
+    expect(serializedBlock.position).toEqual({ x: 200, y: 300 });
+    
+    // Check config
+    expect(serializedBlock.config.inputs).toEqual({
+      value: 'any'
+    });
+    expect(serializedBlock.config.outputs).toEqual({
+      result: 'boolean'
+    });
+    
+    // Check extracted values from subBlocks
+    expect(serializedBlock.config.condition).toBe('');
+    expect(serializedBlock.config.operator).toBe('equals');
+    expect(serializedBlock.config.value).toBe('');
+  });
+
+  test('should serialize connections correctly', () => {
+    const mockConnections = [
+      {
+        id: 'conn-1',
+        source: 'agent-1',
+        target: 'agent-2',
+        sourceHandle: 'output',
+        targetHandle: 'input'
+      }
+    ];
+
+    const serialized = serializer.serializeWorkflow([], mockConnections);
+    
+    expect(serialized.connections).toHaveLength(1);
+    const conn = serialized.connections[0];
+    expect(conn.source).toBe('agent-1');
+    expect(conn.target).toBe('agent-2');
+    expect(conn.sourceHandle).toBe('output');
+    expect(conn.targetHandle).toBe('input');
+  });
+
+  test('should deserialize back to ReactFlow format', () => {
+    const mockWorkflow = {
+      version: '1.0',
+      blocks: [{
+        id: 'agent-1',
+        type: 'agent',
+        position: { x: 100, y: 200 },
+        config: {
+          system_prompt: 'You are a helpful assistant',
+          model: 'GPT-4o',
+          inputs: { prompt: 'string' },
+          outputs: { response: 'string' }
+        }
+      }],
+      connections: [{
+        source: 'agent-1',
+        target: 'agent-2',
+        sourceHandle: 'output',
+        targetHandle: 'input'
+      }]
+    };
+
+    const deserialized = serializer.deserializeWorkflow(mockWorkflow);
+    
+    // Check blocks
+    expect(deserialized.blocks).toHaveLength(1);
+    const block = deserialized.blocks[0];
+    expect(block.id).toBe('agent-1');
+    expect(block.position).toEqual({ x: 100, y: 200 });
+    expect(block.data.type).toBe('agent');
+    
+    // Check connections
+    expect(deserialized.connections).toHaveLength(1);
+    const conn = deserialized.connections[0];
+    expect(conn.source).toBe('agent-1');
+    expect(conn.target).toBe('agent-2');
+    expect(conn.sourceHandle).toBe('output');
+    expect(conn.targetHandle).toBe('input');
+  });
+
+  test('should handle empty workflow', () => {
+    const serialized = serializer.serializeWorkflow([], []);
+    expect(serialized.blocks).toHaveLength(0);
+    expect(serialized.connections).toHaveLength(0);
+    
+    const deserialized = serializer.deserializeWorkflow(serialized);
+    expect(deserialized.blocks).toHaveLength(0);
+    expect(deserialized.connections).toHaveLength(0);
+  });
+
+  test('should handle a complex workflow with multiple block types', () => {
+    const mockWorkflow: SerializedWorkflow = {
+      version: '1.0',
+      blocks: [
+        {
+          id: 'agent-1',
+          type: 'agent',
+          position: { x: 100, y: 100 },
+          config: {
+            system_prompt: 'Analyze this',
+            model: 'GPT-4o',
+            inputs: { prompt: 'string' },
+            outputs: { response: 'string' }
+          }
+        },
+        {
+          id: 'http-1',
+          type: 'api',
+          position: { x: 300, y: 100 },
+          config: {
+            url: 'https://api.example.com',
+            method: 'GET',
+            inputs: { headers: 'string', body: 'string' },
+            outputs: { response: 'string', status: 'string' }
+          }
+        },
+        {
+          id: 'condition-1',
+          type: 'conditional',
+          position: { x: 200, y: 300 },
+          config: {
+            condition: 'value > 0',
+            operator: 'greater than',
+            value: '',
+            inputs: { value: 'string' },
+            outputs: { result: 'string' }
+          }
+        }
+      ],
+      connections: [
+        {
+          source: 'agent-1',
+          target: 'http-1',
+          sourceHandle: 'response',
+          targetHandle: 'headers'
+        },
+        {
+          source: 'http-1',
+          target: 'condition-1',
+          sourceHandle: 'response',
+          targetHandle: 'value'
+        }
+      ]
+    };
+
+    const deserialized = serializer.deserializeWorkflow(mockWorkflow);
+    
+    // Check blocks
+    expect(deserialized.blocks).toHaveLength(3);
+    expect(deserialized.blocks.map(b => b.data.type)).toEqual(['agent', 'api', 'conditional']);
+    
+    // Check connections maintain workflow logic
+    expect(deserialized.connections).toHaveLength(2);
+    expect(deserialized.connections[0].source).toBe('agent-1');
+    expect(deserialized.connections[0].target).toBe('http-1');
+    expect(deserialized.connections[1].source).toBe('http-1');
+    expect(deserialized.connections[1].target).toBe('condition-1');
+  });
+}); 
\ No newline at end of file
diff --git a/serializer/index.ts b/serializer/index.ts
new file mode 100644
index 0000000000..f49594229b
--- /dev/null
+++ b/serializer/index.ts
@@ -0,0 +1,98 @@
+import { BlockConfig, SubBlockConfig, BlockType } from "@/blocks/types/block";
+import { Connection, Node } from "reactflow";
+import { SerializedBlock, SerializedConnection, SerializedWorkflow } from "./types";
+
+export class Serializer {
+  serializeWorkflow(blocks: Node<BlockConfig>[], connections: Connection[]): SerializedWorkflow {
+    return {
+      version: '1.0',
+      blocks: blocks.map(block => this.serializeBlock(block)),
+      connections: connections.map(conn => ({
+        source: conn.source || '',
+        target: conn.target || '',
+        sourceHandle: conn.sourceHandle || undefined,
+        targetHandle: conn.targetHandle || undefined
+      }))
+    };
+  }
+
+  private serializeBlock(block: Node<BlockConfig>): SerializedBlock {
+    const values = this.extractSubBlockValues(block.data);
+
+    return {
+      id: block.id,
+      type: block.data.type,
+      position: {
+        x: block.position.x,
+        y: block.position.y
+      },
+      config: {
+        ...values,
+        inputs: block.data.workflow.inputs,
+        outputs: block.data.workflow.outputs
+      }
+    };
+  }
+
+  private extractSubBlockValues(block: BlockConfig): Record<string, any> {
+    return block.workflow.subBlocks.reduce((acc, subBlock: SubBlockConfig) => {
+      const key = subBlock.title.toLowerCase().replace(/\s/g, '_');
+      let value: any;
+
+      switch (subBlock.type) {
+        case 'long-input':
+        case 'short-input':
+          value = '';
+          break;
+        case 'dropdown':
+          value = subBlock.options?.[0] || '';
+          break;
+        case 'slider':
+          value = subBlock.min || 0;
+          break;
+        case 'code':
+          value = '';
+          break;
+        default:
+          value = null;
+      }
+
+      return {
+        ...acc,
+        [key]: value
+      };
+    }, {});
+  }
+
+  deserializeWorkflow(serialized: SerializedWorkflow): {
+    blocks: Node<Partial<BlockConfig>>[];
+    connections: Partial<Connection>[];
+  } {
+    return {
+      blocks: serialized.blocks.map(block => this.deserializeBlock(block)),
+      connections: serialized.connections.map(conn => ({
+        id: `${conn.source}-${conn.target}`,
+        source: conn.source,
+        target: conn.target,
+        sourceHandle: conn.sourceHandle || null,
+        targetHandle: conn.targetHandle || null
+      }))
+    };
+  }
+
+  private deserializeBlock(serialized: SerializedBlock): Node<Partial<BlockConfig>> {
+    return {
+      id: serialized.id,
+      type: 'custom', // or whatever node type you use in ReactFlow
+      position: serialized.position,
+      data: {
+        type: serialized.type as BlockType,
+        workflow: {
+          inputs: serialized.config.inputs,
+          outputs: serialized.config.outputs,
+          subBlocks: []
+        }
+      }
+    };
+  }
+}
\ No newline at end of file
diff --git a/serializer/types.ts b/serializer/types.ts
new file mode 100644
index 0000000000..38718dcfa9
--- /dev/null
+++ b/serializer/types.ts
@@ -0,0 +1,40 @@
+import { BlockConfig } from "@/blocks/types/block";
+
+export interface SerializedWorkflow {
+  version: string;
+  blocks: SerializedBlock[];
+  connections: SerializedConnection[];
+}
+
+export interface SerializedConnection {
+  source: string;
+  target: string;
+  sourceHandle?: string;
+  targetHandle?: string;
+}
+
+export interface Position {
+  x: number;
+  y: number;
+}
+
+export interface SerializedBlock {
+  id: string;
+  type: string;
+  position: Position;
+  config: {
+    inputs: Record<string, string>;
+    outputs: Record<string, string>;
+    [key: string]: any;
+  };
+}
+
+export interface SubBlockValue {
+  title: string;
+  type: 'long-input' | 'short-input' | 'dropdown' | 'slider' | 'code';
+  value: string | number | boolean;
+}
+
+export interface BlockValues {
+  [key: string]: string | number | boolean;
+}