diff --git a/bw-dev b/bw-dev
index cec425393..ebf75e8e6 100755
--- a/bw-dev
+++ b/bw-dev
@@ -35,7 +35,7 @@ function initdb {
 }
 
 function makeitblack {
-    runweb black celerywyrm bookwyrm
+    docker-compose run --rm dev-tools black celerywyrm bookwyrm
 }
 
 function awscommand {
@@ -135,15 +135,15 @@ case "$CMD" in
         makeitblack
         ;;
     prettier)
-        npx prettier --write bookwyrm/static/js/*.js
+        docker-compose run --rm dev-tools npx prettier --write bookwyrm/static/js/*.js
         ;;
     stylelint)
-        npx stylelint bookwyrm/static/**/*.css --fix
+        docker-compose run --rm dev-tools npx stylelint bookwyrm/static/**/*.css --fix
         ;;
     formatters)
         makeitblack
-        npx prettier --write bookwyrm/static/js/*.js
-        npx stylelint bookwyrm/static/**/*.css --fix
+        docker-compose run --rm dev-tools npx prettier --write bookwyrm/static/js/*.js
+        docker-compose run --rm dev-tools npx stylelint bookwyrm/static/**/*.css --fix
         ;;
     update)
         git pull
diff --git a/dev-tools-docker/Dockerfile b/dev-tools-docker/Dockerfile
new file mode 100644
index 000000000..35286aa6f
--- /dev/null
+++ b/dev-tools-docker/Dockerfile
@@ -0,0 +1,15 @@
+FROM python:3.9
+
+ENV PYTHONUNBUFFERED 1
+
+RUN mkdir /app /app/static /app/images
+
+WORKDIR /app
+
+COPY package.json requirements.txt /app/
+RUN pip install black
+
+RUN apt-get update && apt-get install -y curl
+RUN curl -sL https://deb.nodesource.com/setup_16.x | bash -
+RUN apt-get install -y nodejs
+RUN npm install .
diff --git a/package.json b/dev-tools-docker/package.json
similarity index 100%
rename from package.json
rename to dev-tools-docker/package.json
diff --git a/dev-tools-docker/requirements.txt b/dev-tools-docker/requirements.txt
new file mode 100644
index 000000000..c2014be7c
--- /dev/null
+++ b/dev-tools-docker/requirements.txt
@@ -0,0 +1 @@
+black==21.4b2
diff --git a/docker-compose.yml b/docker-compose.yml
index 672ea4c1a..bffa1a087 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -84,6 +84,11 @@ services:
       - db
       - redis_broker
     restart: on-failure
+  dev-tools:
+    build: dev-tools-docker
+    env_file: .env
+    volumes:
+      -  .:/app
 volumes:
   pgdata:
   static_volume:
diff --git a/requirements.txt b/requirements.txt
index e6d66c5df..94e4d9914 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -25,7 +25,6 @@ opentelemetry-instrumentation-django==0.27b0
 opentelemetry-instrumentation-celery==0.27b0
 
 # Dev
-black==21.4b2
 pytest-django==4.1.0
 pytest==6.1.2
 pytest-cov==2.10.1