diff --git a/lua/easytables/init.lua b/lua/easytables/init.lua
index 42ca71a..9a4d214 100644
--- a/lua/easytables/init.lua
+++ b/lua/easytables/init.lua
@@ -1,6 +1,7 @@
 local table = require("easytables.table")
 local window = require("easytables.window")
 local inputHelper = require("easytables.input")
+local optionsHelper = require("easytables.options")
 
 local function create_new_table(cols, rows)
     local markdown_table = table:create(cols, rows)
@@ -12,7 +13,11 @@ local function create_new_table(cols, rows)
     win:draw_table()
 end
 
-local function setup()
+---Initialize `easytables` with the given options. This function **must** be called.
+---@param options table See options.lua for available options
+local function setup(options)
+    optionsHelper.merge_options(options)
+
     vim.api.nvim_create_user_command(
         "EasyTablesCreateNew",
         function(opt)
diff --git a/lua/easytables/options.lua b/lua/easytables/options.lua
new file mode 100644
index 0000000..c19d072
--- /dev/null
+++ b/lua/easytables/options.lua
@@ -0,0 +1,70 @@
+-- All available options are listed below. The default values are shown.
+local DEFAULT = {
+    table = {
+        window = {
+            preview_title = "Table Preview",
+            prompt_title = "Cell content",
+            -- Either "auto" to automatically size the window, or a string
+            -- in the format of "<width>x<height>" (e.g. "20x10")
+            size = "auto"
+        },
+        cell = {
+            -- Min width of a cell (excluding padding)
+            min_width = 3,
+            -- Filler character for empty cells
+            filler = " ",
+            align = "left",
+            -- Padding around the cell content, applied BOTH left AND right
+            -- E.g: padding = 1, content = "foo" -> " foo "
+            padding = 1,
+        },
+        -- Characters used to draw the table
+        -- Do not worry about multibyte characters, they are handled correctly
+        border = {
+            top_left = "┌",
+            top_right = "┐",
+            bottom_left = "└",
+            bottom_right = "┘",
+            horizontal = "─",
+            vertical = "│",
+            left_t = "├",
+            right_t = "┤",
+            top_t = "┬",
+            bottom_t = "┴",
+            cross = "┼",
+            header_left_t = "╞",
+            header_right_t = "╡",
+            header_bottom_t = "╧",
+            header_cross = "╪",
+            header_horizontal = "═",
+        }
+    },
+}
+
+-- You can ignore everything below this line
+
+local options = {}
+
+local function tableMerge(t1, t2)
+    for k, v in pairs(t2) do
+        if type(v) == "table" then
+            if type(t1[k] or false) == "table" then
+                tableMerge(t1[k] or {}, t2[k] or {})
+            else
+                t1[k] = v
+            end
+        else
+            t1[k] = v
+        end
+    end
+    return t1
+end
+
+local function merge_options(user_options)
+    options = tableMerge(DEFAULT, user_options)
+end
+
+return {
+    merge_options = merge_options,
+    options = options
+}