diff --git a/optuna_dashboard/ts/components/ModelViewer.tsx b/optuna_dashboard/ts/components/ModelViewer.tsx
new file mode 100644
index 00000000..db5caee2
--- /dev/null
+++ b/optuna_dashboard/ts/components/ModelViewer.tsx
@@ -0,0 +1,81 @@
+import * as THREE from "three"
+import React, { useState } from "react"
+import { Canvas } from "@react-three/fiber"
+import { GizmoHelper, GizmoViewport, OrbitControls } from "@react-three/drei"
+import { STLLoader } from "three/examples/jsm/loaders/STLLoader"
+import { PerspectiveCamera } from "three"
+
+interface ModelViewerProps {
+  src: string
+  alt: string
+  width: string
+  height: string
+  hasGizmo: boolean
+}
+
+function CustomGizmoHelper(): JSX.Element {
+  return (
+    <GizmoHelper alignment="bottom-right" margin={[80, 80]}>
+      <GizmoViewport
+        axisColors={["red", "green", "skyblue"]}
+        labelColor="black"
+      />
+    </GizmoHelper>
+  )
+}
+
+export function ModelViewer(props: ModelViewerProps): JSX.Element {
+  const [geometry, setGeometry] = useState<THREE.BufferGeometry>()
+  const [modelSize, setModelSize] = useState<THREE.Vector3>()
+
+  React.useEffect(() => {
+    const loader = new STLLoader()
+    loader.load(props.src, (geometry: THREE.BufferGeometry) => {
+      if (geometry) {
+        setGeometry(geometry)
+        geometry.computeBoundingBox()
+        if (geometry.boundingBox === null) {
+          setModelSize(new THREE.Vector3(10, 10, 10))
+        } else {
+          const size = geometry.boundingBox.getSize(new THREE.Vector3())
+          setModelSize(size)
+        }
+      }
+    })
+  }, [])
+  const cameraPosition = modelSize
+    ? [modelSize.x * 1.5, modelSize.y * 1.5, modelSize.z * 1.5]
+    : [10, 10, 10]
+  const cameraSettings: PerspectiveCamera = {
+    fov: modelSize
+      ? Math.min(45, Math.atan(modelSize.y / modelSize.z) * (180 / Math.PI) * 2)
+      : 45,
+    aspect: window.innerWidth / window.innerHeight,
+    near: 0.1,
+    far: 1000,
+    position: cameraPosition,
+  }
+
+  const viewerWidth = `${parseInt(props.width) * 2}px`
+
+  return (
+    <Canvas
+      camera={cameraSettings}
+      style={{ width: viewerWidth, height: props.height }}
+    >
+      <ambientLight />
+      <OrbitControls />
+      <gridHelper
+        args={modelSize && [Math.max(modelSize?.x, modelSize?.y) * 5]}
+      />
+      {props.hasGizmo && <CustomGizmoHelper />}
+      <axesHelper />
+      <pointLight position={[10, 10, 10]} />
+      {geometry && (
+        <mesh geometry={geometry}>
+          <meshNormalMaterial />
+        </mesh>
+      )}
+    </Canvas>
+  )
+}
diff --git a/optuna_dashboard/ts/components/TrialList.tsx b/optuna_dashboard/ts/components/TrialList.tsx
index c2c75dd3..165fe9d0 100644
--- a/optuna_dashboard/ts/components/TrialList.tsx
+++ b/optuna_dashboard/ts/components/TrialList.tsx
@@ -45,6 +45,7 @@ import { artifactIsAvailable } from "../state"
 import { actionCreator } from "../action"
 import { useDeleteArtifactDialog } from "./DeleteArtifactDialog"
 import { TrialFormWidgets } from "./TrialFormWidgets"
+import { ModelViewer } from "./ModelViewer"
 
 const states: TrialState[] = [
   "Complete",
@@ -437,6 +438,80 @@ const TrialArtifact: FC<{ trial: Trial }> = ({ trial }) => {
                 </CardContent>
               </Card>
             )
+          } else if (a.filename.endsWith(".stl")) {
+            return (
+              <Card
+                key={a.artifact_id}
+                sx={{
+                  marginBottom: theme.spacing(2),
+                  display: "flex",
+                  flexDirection: "column",
+                  width: `${parseInt(width) * 2}px`,
+                  minHeight: "100%",
+                  margin: theme.spacing(0, 1, 1, 0),
+                }}
+              >
+                <Box
+                  sx={{
+                    flexGrow: 1,
+                    display: "flex",
+                    justifyContent: "center",
+                    alignItems: "center",
+                  }}
+                >
+                  <ModelViewer
+                    src={`/artifacts/${trial.study_id}/${trial.trial_id}/${a.artifact_id}`}
+                    alt={a.filename}
+                    width={width}
+                    height={height}
+                    hasGizmo={true}
+                  />
+                </Box>
+                <CardContent
+                  sx={{
+                    display: "flex",
+                    flexDirection: "row",
+                    padding: `${theme.spacing(1)} !important`,
+                  }}
+                >
+                  <Typography
+                    sx={{
+                      p: theme.spacing(0.5, 0),
+                      flexGrow: 1,
+                      wordWrap: "break-word",
+                      maxWidth: `calc(100% - ${theme.spacing(8)})`,
+                    }}
+                  >
+                    {a.filename}
+                  </Typography>
+                  <IconButton
+                    aria-label="delete artifact"
+                    size="small"
+                    color="inherit"
+                    sx={{ margin: "auto 0" }}
+                    onClick={() => {
+                      openDeleteArtifactDialog(
+                        trial.study_id,
+                        trial.trial_id,
+                        a
+                      )
+                    }}
+                  >
+                    <DeleteIcon />
+                  </IconButton>
+                  <IconButton
+                    aria-label="download artifact"
+                    size="small"
+                    color="inherit"
+                    sx={{ margin: "auto 0" }}
+                    download={a.filename}
+                    href={`/artifacts/${trial.study_id}/${trial.trial_id}/${a.artifact_id}`}
+                  >
+                    <DownloadIcon />
+                  </IconButton>
+                </CardContent>
+              </Card>
+            )
           } else if (a.mimetype.startsWith("audio")) {
             return (
               <Card