diff --git a/.gitignore b/.gitignore
index 54785134ba..f24a2cb18a 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,6 +1,5 @@
 conf/application.conf
 bin/dev
-bin/dev.bat
 logs
 project/project
 project/target
diff --git a/bin/dev.default.bat b/bin/dev.default.bat
deleted file mode 100644
index 53203873b4..0000000000
--- a/bin/dev.default.bat
+++ /dev/null
@@ -1,16 +0,0 @@
-@echo off
-
-REM Starts a dev console to compile and run lichess.
-REM
-REM To edit this file, copy it to bin\dev.bat. It will not be tracked by Git.
-REM
-REM Usage:
-REM bin\dev.bat [compile] [run]
-
-REM Yes it needs tons of memory. Go for 4G if you have them.
-set JAVA_OPTS=-Xms2048M -Xmx2560M -XX:ReservedCodeCacheSize=128m -XX:+CMSClassUnloadingEnabled -XX:+UseConcMarkSweepGC -XX:+ExitOnOutOfMemoryError -Dkamon.auto-start=true
-
-REM For development without nginx.
-set SERVE_ASSETS=1
-
-sbt %*
diff --git a/bin/gen/geoip.ps1 b/bin/gen/geoip.ps1
deleted file mode 100644
index bfb54c99a4..0000000000
Binary files a/bin/gen/geoip.ps1 and /dev/null differ
diff --git a/ui/build.bat b/ui/build.bat
deleted file mode 100644
index f7dfc513f3..0000000000
--- a/ui/build.bat
+++ /dev/null
@@ -1,23 +0,0 @@
-@echo off
-
-mkdir public\compiled
-
-set ts_apps=common chess ceval game tree chat
-
-call yarn install --non-interactive
-
-for %%t in (%ts_apps%) do @(
-    call echo Building TypeScript: %%t
-    call cd ui\%%t
-    call yarn run --non-interactive compile
-    call cd ..\..
-)
-
-set apps=site challenge notify learn insight editor puzzle round analyse lobby tournament tournamentSchedule tournamentCalendar simul perfStat dasher
-
-for %%a in (%apps%) do @(
-  call echo Building: %%a
-  call cd ui\%%a
-  call gulp dev
-  call cd ..\..
-)