diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 0b4c930..f2e6c22 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -46,6 +46,15 @@ jobs:
     - name: Run tests
       run: bundle exec rspec
 
+    - name: Upload coverage to Codecov
+      uses: codecov/codecov-action@v4
+      with:
+        token: ${{ secrets.CODECOV_TOKEN }}
+        files: ./coverage/.resultset.json
+        flags: unittests
+        name: codecov-umbrella
+        fail_ci_if_error: false
+
   lint:
     runs-on: ubuntu-latest
 
diff --git a/.gitignore b/.gitignore
index e953825..1c15c3e 100644
--- a/.gitignore
+++ b/.gitignore
@@ -36,3 +36,6 @@
 
 /app/assets/builds/*
 !/app/assets/builds/.keep
+
+# Ignore test coverage files
+/coverage/
diff --git a/Gemfile b/Gemfile
index 50b4466..66d2811 100644
--- a/Gemfile
+++ b/Gemfile
@@ -62,6 +62,7 @@ group :development, :test do
   gem "rspec-rails"
   gem "factory_bot_rails"
   gem "shoulda-matchers"
+  gem "simplecov", require: false
 end
 
 group :development do
diff --git a/Gemfile.lock b/Gemfile.lock
index b182ede..02268b3 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -98,6 +98,7 @@ GEM
       irb (~> 1.10)
       reline (>= 0.3.8)
     diff-lcs (1.6.2)
+    docile (1.4.1)
     dotenv (3.2.0)
     drb (2.2.3)
     ed25519 (1.4.0)
@@ -345,6 +346,12 @@ GEM
     securerandom (0.4.1)
     shoulda-matchers (7.0.1)
       activesupport (>= 7.1)
+    simplecov (0.22.0)
+      docile (~> 1.1)
+      simplecov-html (~> 0.11)
+      simplecov_json_formatter (~> 0.1)
+    simplecov-html (0.13.2)
+    simplecov_json_formatter (0.1.4)
     solid_cable (3.0.12)
       actioncable (>= 7.2)
       activejob (>= 7.2)
@@ -436,6 +443,7 @@ DEPENDENCIES
   rspec-rails
   rubocop-rails-omakase
   shoulda-matchers
+  simplecov
   solid_cable
   solid_cache
   solid_queue
@@ -475,6 +483,7 @@ CHECKSUMS
   date (3.5.1) sha256=750d06384d7b9c15d562c76291407d89e368dda4d4fff957eb94962d325a0dc0
   debug (1.11.1) sha256=2e0b0ac6119f2207a6f8ac7d4a73ca8eb4e440f64da0a3136c30343146e952b6
   diff-lcs (1.6.2) sha256=9ae0d2cba7d4df3075fe8cd8602a8604993efc0dfa934cff568969efb1909962
+  docile (1.4.1) sha256=96159be799bfa73cdb721b840e9802126e4e03dfc26863db73647204c727f21e
   dotenv (3.2.0) sha256=e375b83121ea7ca4ce20f214740076129ab8514cd81378161f11c03853fe619d
   drb (2.2.3) sha256=0b00d6fdb50995fe4a45dea13663493c841112e4068656854646f418fda13373
   ed25519 (1.4.0) sha256=16e97f5198689a154247169f3453ef4cfd3f7a47481fde0ae33206cdfdcac506
@@ -576,6 +585,9 @@ CHECKSUMS
   ruby-vips (2.3.0) sha256=e685ec02c13969912debbd98019e50492e12989282da5f37d05f5471442f5374
   securerandom (0.4.1) sha256=cc5193d414a4341b6e225f0cb4446aceca8e50d5e1888743fac16987638ea0b1
   shoulda-matchers (7.0.1) sha256=b4bfd8744c10e0a36c8ac1a687f921ee7e25ed529e50488d61b79a8688749c77
+  simplecov (0.22.0) sha256=fe2622c7834ff23b98066bb0a854284b2729a569ac659f82621fc22ef36213a5
+  simplecov-html (0.13.2) sha256=bd0b8e54e7c2d7685927e8d6286466359b6f16b18cb0df47b508e8d73c777246
+  simplecov_json_formatter (0.1.4) sha256=529418fbe8de1713ac2b2d612aa3daa56d316975d307244399fa4838c601b428
   solid_cable (3.0.12) sha256=a168a54731a455d5627af48d8441ea3b554b8c1f6e6cd6074109de493e6b0460
   solid_cache (1.0.10) sha256=bc05a2fb3ac78a6f43cbb5946679cf9db67dd30d22939ededc385cb93e120d41
   solid_queue (1.3.2) sha256=44a53047be4255f616ff13fa5d35980e7b3eee6e31d957eadb88fbe8e0db4509
diff --git a/README.md b/README.md
index 7a66051..0f1e7f3 100644
--- a/README.md
+++ b/README.md
@@ -1,6 +1,7 @@
 # CreatorPulse
 
 ![CI Status](https://github.com/springwq/creator-pulse/actions/workflows/ci.yml/badge.svg)
+![Code Coverage](https://codecov.io/gh/springwq/creator-pulse/branch/main/graph/badge.svg)
 ![Ruby Version](https://img.shields.io/badge/Ruby-4.0-red?logo=ruby&logoColor=white)
 ![Rails Version](https://img.shields.io/badge/Rails-8.1-red?logo=rubyonrails&logoColor=white)
 ![PostgreSQL](https://img.shields.io/badge/PostgreSQL-14+-blue?logo=postgresql&logoColor=white)
diff --git a/spec/spec_helper.rb b/spec/spec_helper.rb
index 327b58e..d52718b 100644
--- a/spec/spec_helper.rb
+++ b/spec/spec_helper.rb
@@ -1,3 +1,11 @@
+# SimpleCov configuration for test coverage
+require "simplecov"
+SimpleCov.start "rails" do
+  add_filter "/spec/"
+  add_filter "/config/"
+  add_filter "/vendor/"
+end
+
 # This file was generated by the `rails generate rspec:install` command. Conventionally, all
 # specs live under a `spec` directory, which RSpec adds to the `$LOAD_PATH`.
 # The generated `.rspec` file contains `--require spec_helper` which will cause