diff --git a/plugins/by-name/hex/default.nix b/plugins/by-name/hex/default.nix
new file mode 100644
index 00000000..6ea5d0df
--- /dev/null
+++ b/plugins/by-name/hex/default.nix
@@ -0,0 +1,45 @@
+{ lib, pkgs, ... }:
+let
+  inherit (lib.nixvim) defaultNullOpts mkNullOrLuaFn;
+in
+lib.nixvim.neovim-plugin.mkNeovimPlugin {
+  name = "hex";
+  originalName = "hex.nvim";
+  package = "hex-nvim";
+
+  maintainers = [ lib.maintainers.GaetanLepage ];
+
+  extraOptions = {
+    xxdPackage = lib.mkPackageOption pkgs [
+      "unixtools"
+      "xxd"
+    ] { nullable = true; };
+  };
+
+  extraConfig = cfg: { extraPackages = [ cfg.xxdPackage ]; };
+
+  settingsOptions = {
+    dump_cmd = defaultNullOpts.mkStr "xxd -g 1 -u" ''
+      cli command used to dump hex data.
+    '';
+
+    assemble_cmd = defaultNullOpts.mkStr "xxd -r" ''
+      cli command used to dump hex data.
+    '';
+
+    is_buf_binary_pre_read = mkNullOrLuaFn ''
+      Function that runs on `BufReadPre` to determine if it's binary or not.
+      It should return a boolean value.
+    '';
+
+    is_buf_binary_post_read = mkNullOrLuaFn ''
+      Function that runs on `BufReadPost` to determine if it's binary or not.
+      It should return a boolean value.
+    '';
+  };
+
+  settingsExample = {
+    dump_cmd = "xxd -g 1 -u";
+    assemble_cmd = "xxd -r";
+  };
+}
diff --git a/tests/test-sources/plugins/by-name/hex/default.nix b/tests/test-sources/plugins/by-name/hex/default.nix
new file mode 100644
index 00000000..7639a68f
--- /dev/null
+++ b/tests/test-sources/plugins/by-name/hex/default.nix
@@ -0,0 +1,38 @@
+{
+  empty = {
+    plugins.hex.enable = true;
+  };
+
+  defaults = {
+    plugins.hex = {
+      enable = true;
+
+      settings = {
+        dump_cmd = "xxd -g 1 -u";
+        assemble_cmd = "xxd -r";
+        is_buf_binary_pre_read.__raw = ''
+          function()
+            binary_ext = { 'out', 'bin', 'png', 'jpg', 'jpeg', 'exe', 'dll' }
+            -- only work on normal buffers
+            if vim.bo.ft ~= "" then return false end
+            -- check -b flag
+            if vim.bo.bin then return true end
+            -- check ext within binary_ext
+            local filename = vim.fn.expand('%:t')
+            local ext = vim.fn.expand('%:e')
+            if vim.tbl_contains(binary_ext, ext) then return true end
+            -- none of the above
+            return false
+          end
+        '';
+        is_buf_binary_post_read.__raw = ''
+          function()
+              local encoding = (vim.bo.fenc ~= "" and vim.bo.fenc) or vim.o.enc
+              if encoding ~= 'utf-8' then return true end
+              return false
+            end
+        '';
+      };
+    };
+  };
+}