diff --git a/Gemfile b/Gemfile
index db4230d..c4788ad 100644
--- a/Gemfile
+++ b/Gemfile
@@ -63,6 +63,8 @@ group :development do
   gem "letter_opener", "~> 1.10"
 
   gem "hotwire-spark"
+
+  gem "htmlbeautifier"
 end
 
 group :test do
diff --git a/Gemfile.lock b/Gemfile.lock
index 84fc20d..7ca9ccf 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -134,6 +134,7 @@ GEM
       listen
       rails (>= 7.0.0)
       zeitwerk
+    htmlbeautifier (1.4.3)
     i18n (1.14.8)
       concurrent-ruby (~> 1.0)
     image_processing (1.14.0)
@@ -427,6 +428,7 @@ DEPENDENCIES
   csv (~> 3.3)
   debug
   hotwire-spark
+  htmlbeautifier
   image_processing (~> 1.2)
   importmap-rails
   jbuilder
@@ -499,6 +501,7 @@ CHECKSUMS
   fugit (1.12.1) sha256=5898f478ede9b415f0804e42b8f3fd53f814bd85eebffceebdbc34e1107aaf68
   globalid (1.3.0) sha256=05c639ad6eb4594522a0b07983022f04aa7254626ab69445a0e493aa3786ff11
   hotwire-spark (0.1.13) sha256=0a24799b0942fc9b7ea3e560a5aba3f4dd9a6086958a25929894340f920fb499
+  htmlbeautifier (1.4.3) sha256=b43d08f7e2aa6ae1b5a6f0607b4ed8954c8d4a8e85fd2336f975dda1e4db385b
   i18n (1.14.8) sha256=285778639134865c5e0f6269e0b818256017e8cde89993fdfcbfb64d088824a5
   image_processing (1.14.0) sha256=754cc169c9c262980889bec6bfd325ed1dafad34f85242b5a07b60af004742fb
   importmap-rails (2.2.3) sha256=7101be2a4dc97cf1558fb8f573a718404c5f6bcfe94f304bf1f39e444feeb16a