diff --git a/.github/workflows/mayhem.yml b/.github/workflows/mayhem.yml
new file mode 100644
index 00000000..f003bd88
--- /dev/null
+++ b/.github/workflows/mayhem.yml
@@ -0,0 +1,66 @@
+name: Mayhem
+on:
+  push:
+  pull_request:
+  workflow_dispatch:
+
+env:
+  REGISTRY: ghcr.io
+  IMAGE_NAME: ${{ github.repository }}
+
+jobs:
+  build:
+    name: '${{ matrix.os }} shared=${{ matrix.shared }} ${{ matrix.build_type }}'
+    runs-on: ${{ matrix.os }}
+    strategy:
+      matrix:
+        os: [ubuntu-latest]
+        shared: [false]
+        build_type: [Release]
+        include:
+          - os: ubuntu-latest
+            triplet: x64-linux
+
+    steps:
+      - uses: actions/checkout@v2
+
+      - name: Log in to the Container registry
+        uses: docker/login-action@f054a8b539a109f9f41c372932f1ae047eff08c9
+        with:
+          registry: ${{ env.REGISTRY }}
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Extract metadata (tags, labels) for Docker
+        id: meta
+        uses: docker/metadata-action@98669ae865ea3cffbcbaa878cf57c20bbf1c6c38
+        with:
+          images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
+
+      - name: Build and push Docker image
+        uses: docker/build-push-action@ad44023a93711e3deb337508980b4b5e9bcdc5dc
+        with:
+          context: .
+          push: true
+          build-args: --no-cache
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}
+
+      - name: Start analysis of Parser
+        uses: ForAllSecure/mcode-action@v1
+        with:
+          mayhem-token: ${{ secrets.MAYHEM_TOKEN }}
+          args: --file mayhemfiles/Mayhemfile_Parser --image ${{ steps.meta.outputs.tags }}
+          sarif-output: sarif
+
+      - name: Start analysis of Filename
+        uses: ForAllSecure/mcode-action@v1
+        with:
+          mayhem-token: ${{ secrets.MAYHEM_TOKEN }}
+          args: --file mayhemfiles/Mayhemfile_Filename --image ${{ steps.meta.outputs.tags }}
+          sarif-output: sarif
+
+      - name: Upload SARIF file(s)
+        uses: github/codeql-action/upload-sarif@v1
+        with:
+          sarif_file: sarif
diff --git a/Dockerfile b/Dockerfile
new file mode 100644
index 00000000..7cf1b15a
--- /dev/null
+++ b/Dockerfile
@@ -0,0 +1,26 @@
+# Build Stage
+FROM --platform=linux/amd64 rustlang/rust:nightly as builder
+
+ENV DEBIAN_FRONTEND=noninteractive
+## Install build dependencies.
+RUN apt-get update 
+RUN apt-get install -y cmake clang
+RUN cargo install cargo-fuzz
+
+## Add source code to the build stage.
+ADD . /lightningcss/
+
+# needed to fix bug with nightly version not parsing cargo.toml
+WORKDIR /lightningcss/
+RUN sed '/serde = \[\"smallvec\/serde\", \"cssparser\/serde\"\]/d' Cargo.toml > Cargo.toml2
+RUN mv Cargo.toml2 Cargo.toml
+
+WORKDIR /lightningcss/fuzz/
+
+RUN cargo +nightly fuzz build
+
+FROM --platform=linux/amd64 rustlang/rust:nightly
+
+## TODO: Change <Path in Builder Stage>
+COPY --from=builder /lightningcss/fuzz/target/x86_64-unknown-linux-gnu/release/filename /
+COPY --from=builder /lightningcss/fuzz/target/x86_64-unknown-linux-gnu/release/parser /
diff --git a/fuzz/.gitignore b/fuzz/.gitignore
new file mode 100644
index 00000000..a0925114
--- /dev/null
+++ b/fuzz/.gitignore
@@ -0,0 +1,3 @@
+target
+corpus
+artifacts
diff --git a/fuzz/Cargo.toml b/fuzz/Cargo.toml
new file mode 100644
index 00000000..16704442
--- /dev/null
+++ b/fuzz/Cargo.toml
@@ -0,0 +1,31 @@
+[package]
+name = "lightningcss-fuzz"
+version = "0.0.0"
+authors = ["Automatically generated"]
+publish = false
+edition = "2018"
+
+[package.metadata]
+cargo-fuzz = true
+
+[dependencies]
+libfuzzer-sys = "0.4"
+
+[dependencies.lightningcss]
+path = ".."
+
+# Prevent this from interfering with workspaces
+[workspace]
+members = ["."]
+
+[[bin]]
+name = "parser"
+path = "fuzz_targets/parser.rs"
+test = false
+doc = false
+
+[[bin]]
+name = "filename"
+path = "fuzz_targets/filename.rs"
+test = false
+doc = false
diff --git a/fuzz/fuzz_targets/filename.rs b/fuzz/fuzz_targets/filename.rs
new file mode 100644
index 00000000..7a658908
--- /dev/null
+++ b/fuzz/fuzz_targets/filename.rs
@@ -0,0 +1,37 @@
+#![no_main]
+use libfuzzer_sys::fuzz_target;
+
+fuzz_target!(|data: &[u8]| {
+    match std::str::from_utf8(data) {
+        Ok(s) => {
+            use lightningcss::stylesheet::{
+                StyleSheet, ParserOptions, MinifyOptions, PrinterOptions
+            };
+
+            let mut opts = ParserOptions::default();
+            opts.filename = s.to_owned();
+
+            // Parse a style sheet from a string.
+            match StyleSheet::parse(
+                r#"
+                .foo {
+                  color: red;
+                }
+
+                .bar {
+                  color: red;
+                }
+                "#,
+                opts
+            ) {
+                Ok(mut stylesheet) => {
+                    stylesheet.minify(MinifyOptions::default()).unwrap();
+                    stylesheet.to_css(PrinterOptions::default()).unwrap();
+                },
+                _ => {
+                },
+            };
+        },
+        _ => {},
+    }
+});
diff --git a/fuzz/fuzz_targets/parser.rs b/fuzz/fuzz_targets/parser.rs
new file mode 100644
index 00000000..2362b14d
--- /dev/null
+++ b/fuzz/fuzz_targets/parser.rs
@@ -0,0 +1,26 @@
+#![no_main]
+use libfuzzer_sys::fuzz_target;
+
+fuzz_target!(|data: &[u8]| {
+    match std::str::from_utf8(data) {
+        Ok(s) => {
+            use lightningcss::stylesheet::{
+                StyleSheet, ParserOptions, MinifyOptions, PrinterOptions
+            };
+
+            // Parse a style sheet from a string.
+            match StyleSheet::parse(
+                s,
+                ParserOptions::default()
+            ) {
+                Ok(mut stylesheet) => {
+                    stylesheet.minify(MinifyOptions::default()).unwrap();
+                    stylesheet.to_css(PrinterOptions::default()).unwrap();
+                },
+                _ => {
+                },
+            };
+        },
+        _ => {},
+    }
+});
diff --git a/mayhemfiles/Filename.mayhemfile b/mayhemfiles/Filename.mayhemfile
new file mode 100644
index 00000000..1e384f97
--- /dev/null
+++ b/mayhemfiles/Filename.mayhemfile
@@ -0,0 +1,6 @@
+project: lightningcss
+target: filename
+duration: 90
+
+cmds:
+    - cmd: /filename
diff --git a/mayhemfiles/Parser.mayhemfile b/mayhemfiles/Parser.mayhemfile
new file mode 100644
index 00000000..bb231a62
--- /dev/null
+++ b/mayhemfiles/Parser.mayhemfile
@@ -0,0 +1,6 @@
+project: lightningcss
+target: parser
+duration: 90
+
+cmds:
+    - cmd: /parser