diff --git a/nanshe_ipython.ipynb b/nanshe_ipython.ipynb
index 866ea03..cdbd3c2 100644
--- a/nanshe_ipython.ipynb
+++ b/nanshe_ipython.ipynb
@@ -1671,6 +1671,9 @@
         "import mmap\n",
         "import textwrap\n",
         "\n",
+        "import zopfli\n",
+        "import zopfli.gzip\n",
+        "\n",
         "import numpy\n",
         "import numpy as np\n",
         "\n",
@@ -1727,9 +1730,9 @@
         "* `block_size` (`int`): size of each point on any dimension in the image in terms of pixels.\n",
         "* `roi_alpha` (`float`): transparency of the ROIs in a range of [0.0, 1.0].\n",
         "* `roi_border_width` (`int`): width of the line border on each ROI.\n",
-        "\n",
-        "<br>\n",
-        "* `trace_plot_width` (`int`): width of the trace plot."
+        "* `trace_plot_width` (`int`): width of the trace plot.\n",
+        "* `compresslevel` (`int`): compression level to use with zlib for trace data [0, 9].\n",
+        "* `use_zopfli` (`bool`): whether to use Zopfli or zlib."
       ]
     },
     {
@@ -1743,6 +1746,8 @@
         "roi_alpha = 0.3\n",
         "roi_border_width = 3\n",
         "trace_plot_width = 500\n",
+        "compresslevel = 6\n",
+        "use_zopfli = False\n",
         "\n",
         "\n",
         "bio.curdoc().clear()\n",
@@ -1821,18 +1826,21 @@
         "    plot_projs.append(plot_std)\n",
         "\n",
         "\n",
-        "def gzip_compress(data, compresslevel=6):\n",
-        "    compressed = io.BytesIO()\n",
-        "    with gzip.GzipFile(fileobj=compressed, mode=\"wb\", compresslevel=compresslevel) as compressor:\n",
-        "        compressor.write(data)\n",
-        "    return compressed.getvalue()\n",
+        "def gzip_compress(data, compresslevel=6, use_zopfli=False):\n",
+        "    if use_zopfli:\n",
+        "        return zopfli.gzip.compress(data, gzip_mode=compresslevel)\n",
+        "    else:\n",
+        "        compressed = io.BytesIO()\n",
+        "        with gzip.GzipFile(fileobj=compressed, mode=\"wb\", compresslevel=compresslevel) as compressor:\n",
+        "            compressor.write(data)\n",
+        "        return compressed.getvalue()\n",
         "\n",
         "\n",
         "all_tr_dtype_srcs = ColumnDataSource(data=dict(traces_dtype=traces.dtype.type(0)[None]))\n",
         "all_tr_shape_srcs = ColumnDataSource(data=dict(traces_shape=traces.shape))\n",
         "all_tr_srcs = ColumnDataSource(data=dict(\n",
         "    traces=numpy.frombuffer(\n",
-        "        gzip_compress(traces.tobytes()),\n",
+        "        gzip_compress(traces.tobytes(), compresslevel=compresslevel, use_zopfli=use_zopfli),\n",
         "        dtype=np.uint8\n",
         "    )\n",
         "))\n",
diff --git a/nanshe_workflow.recipe/meta.yaml b/nanshe_workflow.recipe/meta.yaml
index 09a8e50..047a103 100644
--- a/nanshe_workflow.recipe/meta.yaml
+++ b/nanshe_workflow.recipe/meta.yaml
@@ -47,6 +47,7 @@ requirements:
     - xnumpy
     - yail
     - zarr
+    - zopfli
 
 about:
   home: {{ data.get("url") }}