diff --git a/components/Textarea.tsx b/components/Textarea.tsx
new file mode 100644
index 0000000..0e53b51
--- /dev/null
+++ b/components/Textarea.tsx
@@ -0,0 +1,115 @@
+import { styled } from "../stitches.config";
+
+export const Textarea = styled("textarea", {
+  // Reset
+  appearance: "none",
+  borderWidth: "0",
+  boxSizing: "border-box",
+  fontFamily: "inherit",
+  outline: "none",
+  width: "100%",
+  flex: "1",
+  backgroundColor: "$mauve4",
+  display: "inline-flex",
+  alignItems: "center",
+  justifyContent: "center",
+  borderRadius: "$sm",
+  px: "$2",
+  fontSize: "$md",
+  lineHeight: 1,
+  color: "$mauve12",
+  boxShadow: `0 0 0 1px $colors$mauve8`,
+  WebkitTapHighlightColor: "rgba(0,0,0,0)",
+  "&::before": {
+    boxSizing: "border-box",
+  },
+  "&::after": {
+    boxSizing: "border-box",
+  },
+  fontVariantNumeric: "tabular-nums",
+
+  "&:-webkit-autofill": {
+    boxShadow: "inset 0 0 0 1px $colors$blue6, inset 0 0 0 100px $colors$blue3",
+  },
+
+  "&:-webkit-autofill::first-line": {
+    fontFamily: "$untitled",
+    color: "$mauve12",
+  },
+
+  "&:focus": {
+    boxShadow: `0 0 0 1px $colors$mauve10`,
+    "&:-webkit-autofill": {
+      boxShadow: `0 0 0 1px $colors$mauve10`,
+    },
+  },
+  "&::placeholder": {
+    color: "$mauve9",
+  },
+  "&:disabled": {
+    pointerEvents: "none",
+    backgroundColor: "$mauve2",
+    color: "$mauve8",
+    cursor: "not-allowed",
+    "&::placeholder": {
+      color: "$mauve7",
+    },
+  },
+
+  variants: {
+    variant: {
+      ghost: {
+        boxShadow: "none",
+        backgroundColor: "transparent",
+        "@hover": {
+          "&:hover": {
+            boxShadow: "inset 0 0 0 1px $colors$mauve7",
+          },
+        },
+        "&:focus": {
+          backgroundColor: "$loContrast",
+          boxShadow: `0 0 0 1px $colors$mauve10`,
+        },
+        "&:disabled": {
+          backgroundColor: "transparent",
+        },
+        "&:read-only": {
+          backgroundColor: "transparent",
+        },
+      },
+      deep: {
+        backgroundColor: "$deep",
+        boxShadow: "none",
+      },
+    },
+    state: {
+      invalid: {
+        boxShadow: "inset 0 0 0 1px $colors$crimson7",
+        "&:focus": {
+          boxShadow:
+            "inset 0px 0px 0px 1px $colors$crimson8, 0px 0px 0px 1px $colors$crimson8",
+        },
+      },
+      valid: {
+        boxShadow: "inset 0 0 0 1px $colors$grass7",
+        "&:focus": {
+          boxShadow:
+            "inset 0px 0px 0px 1px $colors$grass8, 0px 0px 0px 1px $colors$grass8",
+        },
+      },
+    },
+    cursor: {
+      default: {
+        cursor: "default",
+        "&:focus": {
+          cursor: "text",
+        },
+      },
+      text: {
+        cursor: "text",
+      },
+    },
+  },
+});
+
+export default Textarea;
\ No newline at end of file
diff --git a/components/Transaction/ui.tsx b/components/Transaction/ui.tsx
index ee08688..132cd06 100644
--- a/components/Transaction/ui.tsx
+++ b/components/Transaction/ui.tsx
@@ -15,6 +15,7 @@ import { useSnapshot } from "valtio";
 import state from "../../state";
 import { streamState } from "../DebugStream";
 import { Button } from "..";
+import Textarea from "../Textarea";
 
 interface UIProps {
   setState: (
@@ -110,6 +111,9 @@ export const TxUI: FC<UIProps> = ({
     k => !specialFields.includes(k)
   ) as [keyof TxFields];
 
+  const switchToJson = () =>
+    setState({ editorSavedValue: null, viewType: "json" });
+
   return (
     <Container
       css={{
@@ -196,7 +200,7 @@ export const TxUI: FC<UIProps> = ({
           let value: string | undefined;
           if (typeof _value === "object") {
             if (_value.$type === "json" && typeof _value.$value === "object") {
-              value = JSON.stringify(_value.$value);
+              value = JSON.stringify(_value.$value, null, 2);
             } else {
               value = _value.$value.toString();
             }
@@ -204,9 +208,13 @@ export const TxUI: FC<UIProps> = ({
             value = _value?.toString();
           }
 
-          let isXrp = typeof _value === "object" && _value.$type === "xrp";
-
+          const isXrp = typeof _value === "object" && _value.$type === "xrp";
+          const isJson = typeof _value === "object" && _value.$type === "json";
           const isFee = field === "Fee";
+          let rows = isJson
+            ? (value?.match(/\n/gm)?.length || 0) + 1
+            : undefined;
+          if (rows && rows > 5) rows = 5;
           return (
             <Flex column key={field} css={{ mb: "$2", pr: "1px" }}>
               <Flex
@@ -221,13 +229,30 @@ export const TxUI: FC<UIProps> = ({
                 <Text muted css={{ mr: "$3" }}>
                   {field + (isXrp ? " (XRP)" : "")}:{" "}
                 </Text>
-                <Input
-                  value={value}
-                  onChange={e => {
-                    handleSetField(field, e.target.value);
-                  }}
-                  css={{ width: "70%", flex: "inherit" }}
-                />
+                {isJson ? (
+                  <Textarea
+                    rows={rows}
+                    value={value}
+                    spellCheck={false}
+                    onChange={switchToJson}
+                    css={{
+                      width: "70%",
+                      flex: "inherit",
+                      resize: 'vertical'
+                    }}
+                  />
+                ) : (
+                  <Input
+                    value={value}
+                    onChange={e => {
+                      handleSetField(field, e.target.value);
+                    }}
+                    css={{
+                      width: "70%",
+                      flex: "inherit",
+                    }}
+                  />
+                )}
                 {isFee && (
                   <Button
                     size="xs"