diff --git a/android/backend-api/src/main/kotlin/com/github/ai/split/api/ErrorMessageDto.kt b/android/backend-api/src/main/kotlin/com/github/ai/split/api/ErrorMessageDto.kt
index 22d2969..bd69993 100644
--- a/android/backend-api/src/main/kotlin/com/github/ai/split/api/ErrorMessageDto.kt
+++ b/android/backend-api/src/main/kotlin/com/github/ai/split/api/ErrorMessageDto.kt
@@ -5,5 +5,7 @@ import kotlinx.serialization.Serializable
 @Serializable
 data class ErrorMessageDto(
     val message: String?,
-    val stacktrace: String
+    val exception: String,
+    val stacktraceBase64: String,
+    val stacktraceLines: List<String>
 )
\ No newline at end of file
diff --git a/backend/api/src/main/scala/com/github/ai/split/api/ErrorMessageDto.scala b/backend/api/src/main/scala/com/github/ai/split/api/ErrorMessageDto.scala
index ae79f91..5f2a94f 100644
--- a/backend/api/src/main/scala/com/github/ai/split/api/ErrorMessageDto.scala
+++ b/backend/api/src/main/scala/com/github/ai/split/api/ErrorMessageDto.scala
@@ -4,7 +4,9 @@ import zio.json.{DeriveJsonEncoder, JsonEncoder}
 
 case class ErrorMessageDto(
   message: Option[String],
-  stacktrace: String
+  exception: String,
+  stacktraceBase64: String,
+  stacktraceLines: List[String]
 )
 
 object ErrorMessageDto {
diff --git a/backend/app/src/main/scala/com/github/ai/split/utils/ResponseExtensions.scala b/backend/app/src/main/scala/com/github/ai/split/utils/ResponseExtensions.scala
index bc9e591..11d94cc 100644
--- a/backend/app/src/main/scala/com/github/ai/split/utils/ResponseExtensions.scala
+++ b/backend/app/src/main/scala/com/github/ai/split/utils/ResponseExtensions.scala
@@ -3,9 +3,12 @@ package com.github.ai.split.utils
 import com.github.ai.split.api.ErrorMessageDto
 import com.github.ai.split.entity.exception.DomainError
 import com.github.ai.split.utils.*
-import zio.http.{Response, Status}
+import zio.http.{Body, Response, Status}
 import zio.json.*
 
+import java.nio.charset.StandardCharsets.UTF_8
+import java.nio.charset.{Charset, StandardCharsets}
+import java.util.Base64
 import scala.annotation.tailrec
 
 extension (exception: DomainError) {
@@ -21,14 +24,22 @@ extension (exception: DomainError) {
     }
 
     val stacktrace = exceptionToPrint.stackTraceToString()
+    val encodedStacktrace = Base64.getEncoder.encodeToString(stacktrace.getBytes(UTF_8))
+    val stacktraceLines = stacktrace
+      .split("\n")
+      .map(_.replaceAll("\t", "  "))
+      .toList
+
     val response = ErrorMessageDto(
-      message = if (hasMessage) exception.message else None,
-      stacktrace = stacktrace
+      message = if (hasMessage) exception.message.map(_.trim) else None,
+      exception = exceptionToPrint.toString.trim,
+      stacktraceBase64 = encodedStacktrace,
+      stacktraceLines = stacktraceLines
     )
 
     Response.error(
       status = Status.BadRequest,
-      message = response.toJsonPretty + "\n"
+      body = Body.fromString(response.toJsonPretty, UTF_8)
     )
   }