diff --git a/lua/hurl/lib/variable_store.lua b/lua/hurl/lib/variable_store.lua
new file mode 100644
index 0000000..40a1383
--- /dev/null
+++ b/lua/hurl/lib/variable_store.lua
@@ -0,0 +1,69 @@
+local M = {}
+local utils = require('hurl.utils')
+
+-- Get the path for storing persisted variables
+local function get_store_path()
+  return vim.fn.stdpath('data') .. '/hurl_variables.json'
+end
+
+-- Load persisted variables from disk
+function M.load_persisted_vars()
+  local file_path = get_store_path()
+  local file = io.open(file_path, 'r')
+  if not file then
+    return {}
+  end
+
+  local content = file:read('*all')
+  file:close()
+
+  local ok, data = pcall(vim.json.decode, content)
+  if not ok then
+    utils.log_error('Failed to parse persisted variables: ' .. data)
+    return {}
+  end
+
+  return data
+end
+
+-- Save variables to disk
+function M.save_persisted_vars(vars)
+  local file_path = get_store_path()
+  local file = io.open(file_path, 'w')
+  if not file then
+    utils.log_error('Failed to open variable store for writing: ' .. file_path)
+    return false
+  end
+
+  local ok, encoded = pcall(vim.json.encode, vars)
+  if not ok then
+    utils.log_error('Failed to encode variables: ' .. encoded)
+    file:close()
+    return false
+  end
+
+  file:write(encoded)
+  file:close()
+  return true
+end
+
+-- Parse variables from env file
+function M.parse_env_file(file_path)
+  local file = io.open(file_path, 'r')
+  if not file then
+    return {}
+  end
+
+  local vars = {}
+  for line in file:lines() do
+    local name, value = line:match('^([^=]+)=(.+)$')
+    if name and value then
+      vars[name:trim()] = value:trim()
+    end
+  end
+  file:close()
+
+  return vars
+end
+
+return M
diff --git a/lua/hurl/main.lua b/lua/hurl/main.lua
index 6557d30..1c0fbce 100644
--- a/lua/hurl/main.lua
+++ b/lua/hurl/main.lua
@@ -2,6 +2,7 @@ local utils = require('hurl.utils')
 local http = require('hurl.http_utils')
 local hurl_runner = require('hurl.lib.hurl_runner')
 local codelens = require('hurl.codelens')
+local variable_store = require('hurl.lib.variable_store')
 
 local M = {}
 
@@ -243,62 +244,121 @@ function M.setup()
     )
   end, { nargs = '*', range = true })
 
-  -- Show all global variables
   utils.create_cmd('HurlManageVariable', function()
-    -- Prepare the lines to display in the popup
+    -- Load variables from all sources
+    local all_vars = {}
+
+    -- Load persisted variables
+    local persisted_vars = variable_store.load_persisted_vars()
+    for name, value in pairs(persisted_vars) do
+      all_vars[name] = {
+        value = value,
+        source = 'persisted',
+      }
+    end
+
+    -- Load variables from env files
+    local env_files = _HURL_GLOBAL_CONFIG.find_env_files_in_folders()
+    for _, env_file in ipairs(env_files) do
+      if vim.fn.filereadable(env_file.path) == 1 then
+        local env_vars = variable_store.parse_env_file(env_file.path)
+        for name, value in pairs(env_vars) do
+          all_vars[name] = {
+            value = value,
+            source = 'env:' .. vim.fn.fnamemodify(env_file.path, ':t'),
+          }
+        end
+      end
+    end
+
+    -- Prepare lines for display
     local lines = {}
-    if not _HURL_GLOBAL_CONFIG.global_vars or vim.tbl_isempty(_HURL_GLOBAL_CONFIG.global_vars) then
-      utils.log_info('hurl: no global variables set')
-      utils.notify('hurl: no global variables set', vim.log.levels.INFO)
-      table.insert(lines, 'No global variables set. Please use :HurlSetVariable to set one.')
+    if vim.tbl_isempty(all_vars) then
+      table.insert(lines, 'No variables found. Use :HurlSetVariable to set one.')
     else
-      for var_name, var_value in pairs(_HURL_GLOBAL_CONFIG.global_vars) do
-        table.insert(lines, var_name .. ' = ' .. var_value)
+      table.insert(lines, '# Variables')
+      table.insert(lines, '')
+      for name, data in vim.spairs(all_vars) do
+        table.insert(lines, string.format('%s = %s [%s]', name, data.value, data.source))
       end
     end
 
     local popup = require('hurl.popup')
     local text_popup = popup.show_text(
-      'Hurl.nvim - Global variables',
+      'Hurl.nvim - Variables',
       lines,
-      "Press 'q' to close, 'e' to edit, or 'n' to create a variable."
+      "Press 'q' to close, 'e' to edit, 'n' to create, or 'd' to delete"
     )
 
-    -- Add e key binding to edit the variable
+    -- Add key bindings for variable management
     text_popup:map('n', 'e', function()
       local line = vim.api.nvim_get_current_line()
-      local var_name = line:match('^(.-) =')
+      local var_name = line:match('^([^=]+) =')
       if var_name then
         local new_value = vim.fn.input('Enter new value for ' .. var_name .. ': ')
-        _HURL_GLOBAL_CONFIG.global_vars[var_name] = new_value
-        vim.api.nvim_set_current_line(var_name .. ' = ' .. new_value)
+        if new_value and new_value ~= '' then
+          -- Update persisted variables
+          local vars = variable_store.load_persisted_vars()
+          vars[var_name] = new_value
+          variable_store.save_persisted_vars(vars)
+
+          -- Update global vars
+          _HURL_GLOBAL_CONFIG.global_vars = _HURL_GLOBAL_CONFIG.global_vars or {}
+          _HURL_GLOBAL_CONFIG.global_vars[var_name] = new_value
+
+          -- Update display
+          vim.api.nvim_set_current_line(string.format('%s = %s [persisted]', var_name, new_value))
+        end
+      end
+    end)
+
+    -- Add delete functionality
+    text_popup:map('n', 'd', function()
+      local line = vim.api.nvim_get_current_line()
+      local var_name = line:match('^([^=]+) =')
+      if var_name then
+        local vars = variable_store.load_persisted_vars()
+        vars[var_name] = nil
+        variable_store.save_persisted_vars(vars)
+
+        -- Remove from global vars
+        if _HURL_GLOBAL_CONFIG.global_vars then
+          _HURL_GLOBAL_CONFIG.global_vars[var_name] = nil
+        end
+
+        -- Remove line from display
+        local current_line = vim.api.nvim_win_get_cursor(0)[1]
+        vim.api.nvim_buf_set_lines(0, current_line - 1, current_line, false, {})
       end
     end)
 
-    -- Add 'n' to create new variable
+    -- Modify existing 'n' mapping to persist new variables
     text_popup:map('n', 'n', function()
       local var_name = vim.fn.input('Enter new variable name: ')
       if not var_name or var_name == '' then
-        utils.notify('hurl: variable name cannot be empty', vim.log.levels.INFO)
+        utils.notify('Variable name cannot be empty', vim.log.levels.INFO)
         return
       end
 
       local var_value = vim.fn.input('Enter new variable value: ')
       if not var_value or var_value == '' then
-        utils.notify('hurl: variable value cannot be empty', vim.log.levels.INFO)
+        utils.notify('Variable value cannot be empty', vim.log.levels.INFO)
         return
       end
 
-      local line_position = -1
-      local first_line = vim.api.nvim_buf_get_lines(0, 0, 1, false)
-      if first_line[1] == 'No global variables set. Please use :HurlSetVariable to set one.' then
-        -- Clear the buffer if it's empty
-        line_position = 0
-      end
+      -- Update persisted variables
+      local vars = variable_store.load_persisted_vars()
+      vars[var_name] = var_value
+      variable_store.save_persisted_vars(vars)
+
+      -- Update global vars
+      _HURL_GLOBAL_CONFIG.global_vars = _HURL_GLOBAL_CONFIG.global_vars or {}
+      _HURL_GLOBAL_CONFIG.global_vars[var_name] = var_value
 
-      vim.cmd('HurlSetVariable ' .. var_name .. ' ' .. var_value)
-      -- Append to the last line
-      vim.api.nvim_buf_set_lines(0, line_position, -1, false, { var_name .. ' = ' .. var_value })
+      -- Add to display
+      vim.api.nvim_buf_set_lines(0, -1, -1, false, {
+        string.format('%s = %s [persisted]', var_name, var_value),
+      })
     end)
   end, {
     nargs = '*',
diff --git a/test/plugin_spec.lua b/test/plugin_spec.lua
index 4eb737d..da36d0e 100644
--- a/test/plugin_spec.lua
+++ b/test/plugin_spec.lua
@@ -1,19 +1,41 @@
-describe('Hurl.nvim plugin', function()
-  it('should be able to load', function()
-    local hurl = require('hurl')
-    assert.truthy(hurl)
+describe('Variable management', function()
+  local variable_store = require('hurl.lib.variable_store')
 
-    assert.are.same('split', _HURL_GLOBAL_CONFIG.mode)
-    assert.are.same(false, _HURL_GLOBAL_CONFIG.debug)
+  before_each(function()
+    -- Clear persisted variables before each test
+    variable_store.save_persisted_vars({})
   end)
 
-  it('should be able parse the configuration file', function()
-    require('hurl').setup({
-      debug = true,
-      mode = 'popup',
-    })
+  it('should persist variables between sessions', function()
+    -- Set a variable
+    local vars = {
+      test_var = 'test_value',
+    }
+    variable_store.save_persisted_vars(vars)
 
-    assert.are.same('popup', _HURL_GLOBAL_CONFIG.mode)
-    assert.are.same(true, _HURL_GLOBAL_CONFIG.debug)
+    -- Load variables
+    local loaded_vars = variable_store.load_persisted_vars()
+    assert.are.same(vars, loaded_vars)
+  end)
+
+  it('should load variables from env file', function()
+    -- Create a temporary env file
+    local temp_file = vim.fn.tempname()
+    local f = io.open(temp_file, 'w')
+    f:write('TEST_VAR=test_value\n')
+    f:write('ANOTHER_VAR=another_value\n')
+    f:close()
+
+    -- Parse the env file
+    local vars = variable_store.parse_env_file(temp_file)
+
+    -- Clean up
+    os.remove(temp_file)
+
+    -- Verify variables were loaded
+    assert.are.same({
+      TEST_VAR = 'test_value',
+      ANOTHER_VAR = 'another_value',
+    }, vars)
   end)
 end)