diff --git a/axi/tb/axis_cocotb_loopback_test/tb_axis_loopback.sv b/axi/tb/axis_cocotb_loopback_test/tb_axis_loopback.sv
new file mode 100644
index 0000000..6130d22
--- /dev/null
+++ b/axi/tb/axis_cocotb_loopback_test/tb_axis_loopback.sv
@@ -0,0 +1,108 @@
+module tb_axis_loopback;
+  localparam int unsigned DATA_W = 64;
+  localparam int unsigned KEEP_W = DATA_W / 8;
+  localparam int unsigned ID_W   = 8;
+  localparam int unsigned DEST_W = 8;
+  localparam int unsigned USER_W = 8;
+
+
+  logic clk = 1'b0;
+  logic rst = 1'b1;
+  logic rst_n;
+
+  assign rst_n = ~rst;
+
+  // Classic AXI-Stream flat input side
+  logic [DATA_W-1:0] s_axis_tdata;
+  logic [KEEP_W-1:0] s_axis_tkeep;
+  logic [KEEP_W-1:0] s_axis_tstrb;
+  logic              s_axis_tlast;
+  logic [ID_W-1:0]   s_axis_tid;
+  logic [DEST_W-1:0] s_axis_tdest;
+  logic [USER_W-1:0] s_axis_tuser;
+  logic              s_axis_tvalid;
+  logic              s_axis_tready;
+
+  // Classic AXI-Stream flat output side
+  logic [DATA_W-1:0] m_axis_tdata;
+  logic [KEEP_W-1:0] m_axis_tkeep;
+  logic [KEEP_W-1:0] m_axis_tstrb;
+  logic              m_axis_tlast;
+  logic [ID_W-1:0]   m_axis_tid;
+  logic [DEST_W-1:0] m_axis_tdest;
+  logic [USER_W-1:0] m_axis_tuser;
+  logic              m_axis_tvalid;
+  logic              m_axis_tready;
+
+  axis_if #(
+    .DATA_W(DATA_W),
+    .KEEP_W(KEEP_W),
+    .ID_W(ID_W),
+    .DEST_W(DEST_W),
+    .USER_W(USER_W)
+  ) s_axis_if (
+    .aclk(clk),
+    .aresetn(rst_n)
+  );
+
+  axis_if #(
+    .DATA_W(DATA_W),
+    .KEEP_W(KEEP_W),
+    .ID_W(ID_W),
+    .DEST_W(DEST_W),
+    .USER_W(USER_W)
+  ) m_axis_if (
+    .aclk(clk),
+    .aresetn(rst_n)
+  );
+
+  axis_flat_to_if #(
+    .DATA_W(DATA_W),
+    .KEEP_W(KEEP_W),
+    .ID_W(ID_W),
+    .DEST_W(DEST_W),
+    .USER_W(USER_W)
+  ) axis_in_conv_inst (
+    .s_axis_tdata  (s_axis_tdata),
+    .s_axis_tkeep  (s_axis_tkeep),
+    .s_axis_tstrb  (s_axis_tstrb),
+    .s_axis_tlast  (s_axis_tlast),
+    .s_axis_tid    (s_axis_tid),
+    .s_axis_tdest  (s_axis_tdest),
+    .s_axis_tuser  (s_axis_tuser),
+    .s_axis_tvalid (s_axis_tvalid),
+    .s_axis_tready (s_axis_tready),
+    .m_axis        (s_axis_if)
+  );
+
+  axis_loopback #(
+    .DATA_W(DATA_W),
+    .KEEP_W(KEEP_W),
+    .ID_W(ID_W),
+    .DEST_W(DEST_W),
+    .USER_W(USER_W)
+  ) axis_dut_inst (
+    .s_axis(s_axis_if),
+    .m_axis(m_axis_if)
+  );
+
+  axis_if_to_flat #(
+    .DATA_W(DATA_W),
+    .KEEP_W(KEEP_W),
+    .ID_W(ID_W),
+    .DEST_W(DEST_W),
+    .USER_W(USER_W)
+  ) axis_out_conv_inst (
+    .s_axis       (m_axis_if),
+    .m_axis_tdata (m_axis_tdata),
+    .m_axis_tkeep (m_axis_tkeep),
+    .m_axis_tstrb (m_axis_tstrb),
+    .m_axis_tlast (m_axis_tlast),
+    .m_axis_tid   (m_axis_tid),
+    .m_axis_tdest (m_axis_tdest),
+    .m_axis_tuser (m_axis_tuser),
+    .m_axis_tvalid(m_axis_tvalid),
+    .m_axis_tready(m_axis_tready)
+  );
+
+endmodule : tb_axis_loopback