diff --git a/src/components/Workspace.tsx b/src/components/Workspace.tsx
index 30ca74a..9ace9da 100644
--- a/src/components/Workspace.tsx
+++ b/src/components/Workspace.tsx
@@ -20,6 +20,7 @@ import {
   OperationTags,
   outputTypes,
   IOTypes,
+  ConfigValues,
 } from "@/operations/types";
 import { operations } from "@/operations/operations";
 import {
@@ -87,21 +88,32 @@ const Workspace: React.FC = () => {
         state.edges
       );
       const sortedConnectedNodes = topologicalSort(connectedNodes, state.edges);
-
       const lastConnectedNode =
         sortedConnectedNodes[sortedConnectedNodes.length - 1];
 
-      const lastNodeY = lastConnectedNode
-        ? lastConnectedNode.position.y +
-          (lastConnectedNode.measured?.height || 0)
-        : 0;
-      const lastNodeX = lastConnectedNode ? lastConnectedNode.position.x : 250;
-
       const newNode: Node = {
         id: generateShortId(operation.id),
         type: "custom",
-        data: operation,
-        position: { x: lastNodeX, y: lastNodeY + 80 },
+        data: {
+          ...operation,
+          onConfigChange: (newConfig: ConfigValues) => {
+            if (operation.funcBuilder) {
+              dispatch({
+                type: "UPDATE_NODE_CONFIG",
+                nodeId: newNode.id,
+                config: newConfig,
+              });
+            }
+          },
+        },
+        position: {
+          x: lastConnectedNode ? lastConnectedNode.position.x : 250,
+          y: lastConnectedNode
+            ? lastConnectedNode.position.y +
+              (lastConnectedNode.measured?.height || 0) +
+              80
+            : 10,
+        },
       };
 
       if (operation.tags.includes(OperationTags.IO)) {
@@ -228,7 +240,7 @@ const Workspace: React.FC = () => {
   }, [state.nodes, state.edges, state.selectedNodeId, state.dirtyNodes]);
 
   const debouncedCalculate = useMemo(
-    () => debounce(calculate, 250),
+    () => debounce(calculate, 100),
     [calculate]
   );
 
diff --git a/src/components/flow/FlowGraph.tsx b/src/components/flow/FlowGraph.tsx
index 8873860..ebb5253 100644
--- a/src/components/flow/FlowGraph.tsx
+++ b/src/components/flow/FlowGraph.tsx
@@ -72,6 +72,7 @@ export const FlowGraph = React.memo<FlowGraphProps>(
           onNodesDelete={handleNodesDelete}
           onNodeClick={(_, node) => onNodeClick?.(node.id)}
           fitView
+          proOptions={{ hideAttribution: true }}
         >
           <Background variant={BackgroundVariant.Dots} gap={12} size={1} />
           <Controls />
diff --git a/src/nodes/customNode.tsx b/src/nodes/customNode.tsx
index fe162a7..e54cdfc 100644
--- a/src/nodes/customNode.tsx
+++ b/src/nodes/customNode.tsx
@@ -16,14 +16,14 @@ const propsAreEqual = (
     prevProps.id === nextProps.id &&
     prevProps.selected === nextProps.selected &&
     prevProps.data.value === nextProps.data.value &&
-    prevProps.data.outputValues === nextProps.data.outputValues
+    prevProps.data.outputValues === nextProps.data.outputValues &&
+    prevProps.data.configValues === nextProps.data.configValues
   );
 };
 
 const CustomNode = ({ id, data, selected }: CustomNodeProps) => {
   const input_length = data.inputs ? Object.keys(data.inputs).length : 0;
   const output_length = data.outputs ? Object.keys(data.outputs).length : 0;
-
   const inputHandles = useMemo(() => {
     if (!data.inputs) return null;
     return Object.entries(data.inputs).map(([key, type], index) => (
@@ -75,6 +75,61 @@ const CustomNode = ({ id, data, selected }: CustomNodeProps) => {
     ));
   }, [data.outputs, output_length]);
 
+  const configInputs = useMemo(() => {
+    if (!data.configValues) return null;
+    return (
+      <div className="mt-2 border-t pt-2">
+        {Object.entries(data.configValues).map(([key, value]) => (
+          <div key={key} className="flex items-center text-xs">
+            <label className="mr-2">{key}:</label>
+            {typeof value === "boolean" ? (
+              <input
+                type="checkbox"
+                checked={value}
+                onChange={(e) => {
+                  if (data.onConfigChange) {
+                    data.onConfigChange({
+                      ...data.configValues,
+                      [key]: e.target.checked,
+                    });
+                  }
+                }}
+              />
+            ) : typeof value === "number" ? (
+              <input
+                type="number"
+                value={value}
+                onChange={(e) => {
+                  if (data.onConfigChange) {
+                    data.onConfigChange({
+                      ...data.configValues,
+                      [key]: Number(e.target.value),
+                    });
+                  }
+                }}
+                className="w-16 px-1"
+              />
+            ) : (
+              <input
+                type="text"
+                value={value}
+                onChange={(e) => {
+                  if (data.onConfigChange) {
+                    data.onConfigChange({
+                      ...data.configValues,
+                      [key]: e.target.value,
+                    });
+                  }
+                }}
+                className="w-24 px-1"
+              />
+            )}
+          </div>
+        ))}
+      </div>
+    );
+  }, [data]);
+
   const nodeClassName = useMemo(
     () =>
       `p-4 border rounded shadow-md bg-white items-center cursor-pointer hover:bg-gray-50 ${
@@ -91,6 +146,7 @@ const CustomNode = ({ id, data, selected }: CustomNodeProps) => {
       </div>
       {inputHandles}
       <div className="mt-2">{data.value?.slice(0, 30) || ""}</div>
+      {configInputs}
       {outputHandles}
     </div>
   );
diff --git a/src/operations/string/encoding.ts b/src/operations/string/encoding.ts
index c897f2e..6b5d473 100644
--- a/src/operations/string/encoding.ts
+++ b/src/operations/string/encoding.ts
@@ -1,4 +1,9 @@
-import { Operation, OperationTags, IOTypes } from "@/operations/types";
+import {
+  Operation,
+  OperationTags,
+  IOTypes,
+  ConfigValues,
+} from "@/operations/types";
 import {
   encode_base16,
   decode_base16,
@@ -10,6 +15,7 @@ import {
   decode_base64_standard,
   encode_base64_url,
   decode_base64_url,
+  build_base16_encoder,
 } from "wasm";
 import { validateOutputTypeStringToString } from "@/operations/string/utils";
 
@@ -19,6 +25,17 @@ export const Base16Encode: Operation = {
   description: "Encodes the input string to Base16 (hexadecimal)",
   link: "https://en.wikipedia.org/wiki/Hexadecimal",
   value: "",
+  configValues: {
+    uppercase: false,
+  },
+  funcBuilder: (config?: ConfigValues) => {
+    const builtFunction = build_base16_encoder(JSON.stringify(config || {}));
+    return validateOutputTypeStringToString(
+      (input: string) => builtFunction(input),
+      [IOTypes.Text],
+      [IOTypes.Text]
+    );
+  },
   func: validateOutputTypeStringToString(
     encode_base16,
     [IOTypes.Text],
diff --git a/src/operations/types.ts b/src/operations/types.ts
index 5a6d557..46add47 100644
--- a/src/operations/types.ts
+++ b/src/operations/types.ts
@@ -15,6 +15,10 @@ export enum IOTypes {
   Binary = "Binary",
 }
 
+export type ConfigValues = {
+  [key: string]: string | number | boolean;
+};
+
 export type outputTypes = string | number | number[] | string[];
 
 export type OperationFunction = (...args: outputTypes[]) => outputTypes[];
@@ -24,11 +28,14 @@ export interface Operation {
   description: string;
   value: string;
   outputValues?: { [key: string]: outputTypes };
+  configValues?: ConfigValues;
   id: string;
+  funcBuilder?: (configValues?: ConfigValues) => OperationFunction;
   func: OperationFunction;
   tags: OperationTags[];
   inputs: { [key: string]: IOTypes };
   outputs: { [key: string]: IOTypes };
   link?: string;
+  onConfigChange?: (newConfig: ConfigValues) => void;
   [key: string]: unknown;
 }
diff --git a/src/state/graphReducer.ts b/src/state/graphReducer.ts
index 47aaa35..5f8806b 100644
--- a/src/state/graphReducer.ts
+++ b/src/state/graphReducer.ts
@@ -1,4 +1,4 @@
-import { Operation } from "@/operations/types";
+import { ConfigValues, Operation } from "@/operations/types";
 import {
   Edge,
   Node,
@@ -36,7 +36,8 @@ export type GraphAction =
   | { type: "APPLY_NODE_CHANGES"; changes: NodeChange[] }
   | { type: "APPLY_EDGE_CHANGES"; changes: EdgeChange[] }
   | { type: "SET_EDGES_AND_NODES"; edges: Edge[]; nodes: Node[] }
-  | { type: "SET_NODES_AND_CLEAR_DIRTY"; nodes: Node[] };
+  | { type: "SET_NODES_AND_CLEAR_DIRTY"; nodes: Node[] }
+  | { type: "UPDATE_NODE_CONFIG"; nodeId: string; config: ConfigValues };
 
 export const initialGraphState: GraphState = {
   nodes: [],
@@ -157,6 +158,34 @@ export const graphReducer = (
         dirtyNodes: new Set(),
       };
 
+    case "UPDATE_NODE_CONFIG": {
+      const node = state.nodes.find((n) => n.id === action.nodeId);
+      const operation = node?.data as Operation;
+      const funcBuilder = operation?.funcBuilder;
+      if (typeof funcBuilder !== "function") return state;
+
+      const newNodes = state.nodes.map((node) =>
+        node.id === action.nodeId
+          ? {
+              ...node,
+              data: {
+                ...node.data,
+                configValues: action.config,
+                func: funcBuilder(action.config),
+              },
+            }
+          : node
+      );
+
+      const affectedNodes = getDownstreamNodes(state.edges, action.nodeId);
+      affectedNodes.push(action.nodeId);
+      return {
+        ...state,
+        nodes: newNodes,
+        dirtyNodes: new Set([...state.dirtyNodes, ...affectedNodes]),
+      };
+    }
+
     default:
       return state;
   }
diff --git a/wasm/Cargo.toml b/wasm/Cargo.toml
index 2824748..794ad65 100644
--- a/wasm/Cargo.toml
+++ b/wasm/Cargo.toml
@@ -25,6 +25,8 @@ base85 = "1.0.0"
 md-5 = "0.10.6"
 sha1 = "0.10.6"
 sha2 = "0.10.6"
+serde_json = "1.0.138"
+js-sys = "0.3.77"
 
 [dev-dependencies]
 wasm-bindgen-test = "0.3.34"
diff --git a/wasm/src/string_ops/encoding.rs b/wasm/src/string_ops/encoding.rs
index 5e0c8ab..5b2e21a 100644
--- a/wasm/src/string_ops/encoding.rs
+++ b/wasm/src/string_ops/encoding.rs
@@ -1,14 +1,34 @@
 use wasm_bindgen::prelude::*;
 use base64::{Engine as _, engine::general_purpose};
-use data_encoding::{HEXLOWER as BASE16, BASE32};
+use data_encoding::{HEXLOWER as BASE16, BASE32, HEXUPPER};
 use base85::{encode, decode};
 use crate::utils::process_lines;
+use serde_json::Value;
+use wasm_bindgen::JsValue;
 
 #[wasm_bindgen]
 pub fn encode_base16(s: &str) -> Vec<String> {
     vec![process_lines(s, |line| BASE16.encode(line.as_bytes()))]
 }
 
+#[wasm_bindgen]
+pub fn build_base16_encoder(config: &str) -> Result<js_sys::Function, JsValue> {
+    let config: Value = serde_json::from_str(config)
+        .map_err(|e| JsValue::from_str(&format!("Invalid config JSON: {}", e)))?;
+    
+    let uppercase = config.get("uppercase")
+        .and_then(|v| v.as_bool())
+        .unwrap_or(false);
+    
+    let encoder = if uppercase { HEXUPPER } else { BASE16 };
+    
+    let closure: Closure<dyn Fn(String) -> Vec<String>> = Closure::new(move |s: String| {
+        vec![process_lines(&s, |line| encoder.encode(line.as_bytes()))]
+    });
+    
+    Ok(closure.into_js_value().unchecked_into::<js_sys::Function>())
+}
+
 #[wasm_bindgen]
 pub fn decode_base16(s: &str) -> Vec<String> {
     vec![process_lines(s, |line| {