diff --git a/.github/workflows/on-release.yml b/.github/workflows/on-release.yml
new file mode 100644
index 0000000..efaa63f
--- /dev/null
+++ b/.github/workflows/on-release.yml
@@ -0,0 +1,43 @@
+name: On Release
+
+# By default, a workflow only has read permissions.
+# Add the needed permission to write release assets
+permissions:
+  contents: write
+
+on:
+  release:
+    types:
+      - published
+
+jobs:
+  build:
+    name: Add Release Assets
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Amalgamate single-file poolstl.hpp
+        run: ./create_amalgamates.sh
+        working-directory: tools
+
+      - name: Upload poolstl.hpp
+        uses: actions/upload-release-asset@v1
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        with:
+          upload_url: ${{ github.event.release.upload_url }}
+          asset_path: ./tools/poolstl.hpp
+          asset_name: poolstl.hpp
+          asset_content_type: text/plain
+
+#      - name: Upload poolstl_nopool.hpp
+#        uses: actions/upload-release-asset@v1
+#        env:
+#          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+#        with:
+#          upload_url: ${{ github.event.release.upload_url }}
+#          asset_path: ./tools/poolstl_nopool.hpp
+#          asset_name: poolstl_nopool.hpp
+#          asset_content_type: text/plain
diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index bc76576..bf0fd08 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -22,6 +22,7 @@ jobs:
             description: "GCC 7"
             gcc-version: "7"
             cmake-version: "3.18"
+            test-amalgamation: true
 
           - os: ubuntu-latest
             description: "GCC 13"
@@ -83,6 +84,22 @@ jobs:
           ./poolstl_bench || ./Release/poolstl_bench.exe
         shell: bash
 
+      - name: Test Amalgamation
+        if: matrix.test-amalgamation
+        run: |
+          cd tools/
+          ./create_amalgamates.sh
+          cd ..
+          rm -rf include/poolstl/*
+          cp tools/poolstl.hpp include/poolstl/
+          mkdir -p include/poolstl/internal
+          cp tools/poolstl.hpp include/poolstl/internal/utils.hpp
+          cmake -S . -B build/ -DCMAKE_BUILD_TYPE=Debug -DPOOLSTL_TEST=ON -DPOOLSTL_TEST_COVERAGE=OFF
+          cmake --build build/ --config Debug
+          cd build/tests
+          ctest -C Debug --output-on-failure --verbose
+        shell: bash
+
       - name: Upload Coverage to Codecov
         if: contains(matrix.os, 'ubuntu')
         uses: codecov/codecov-action@v3
diff --git a/README.md b/README.md
index aa0ef62..2c5937d 100644
--- a/README.md
+++ b/README.md
@@ -59,6 +59,10 @@ Note: All iterators must be random access.
 
 ## Installation
 
+### Single File
+
+You may download a single-file amalgamated `poolstl.hpp` from the [latest Release](https://github.com/alugowski/poolSTL/releases) and simply copy into your project.
+
 ### CMake
 
 ```cmake
diff --git a/tools/amalgamate.py b/tools/amalgamate.py
new file mode 100644
index 0000000..4ff142b
--- /dev/null
+++ b/tools/amalgamate.py
@@ -0,0 +1,74 @@
+#!/usr/bin/env python3
+"""
+Amalgamate multiple header files into one.
+"""
+import argparse
+from pathlib import Path
+import sys
+
+
+def parse_args():
+    parser = argparse.ArgumentParser()
+
+    parser.add_argument("root", type=Path,
+                        help="Root header file.")
+
+    parser.add_argument("-o", "--output", type=Path, default=None, nargs='?',
+                        help="Path to write output to.")
+
+    parser.add_argument("-H", "--header", type=Path, default=None, nargs='?',
+                        help="Header to use instead of the one in the root file.")
+
+    parser.add_argument("-e", "--exclude", type=Path, default=[], nargs='*', action='extend',
+                        help="Include files to pretend are already included.")
+
+    return parser.parse_args()
+
+
+seen_includes = set()
+
+
+def process_file(out, path: Path, drop_header=False):
+    in_header = True
+    base = path.parent
+    out.write("\n")
+    with path.open("r") as infile:
+        for line in infile.readlines():
+            if in_header and drop_header:
+                if line.startswith("#"):
+                    in_header = False
+                else:
+                    continue
+
+            if line.startswith("#include"):
+                _, inc = line.split()
+                incpath = base / inc[1:-1]
+
+                if incpath in seen_includes:
+                    continue
+
+                seen_includes.add(incpath)
+
+                if inc.startswith('"'):
+                    process_file(out, incpath, drop_header=True)
+                    continue
+
+            out.write(line)
+
+
+def main():
+    args = parse_args()
+
+    for e in args.exclude:
+        seen_includes.add(e)
+
+    out = sys.stdout if not args.output else args.output.open("w")
+
+    if args.header:
+        out.write(args.header.read_text())
+
+    process_file(out, args.root, drop_header=bool(args.header))
+
+
+if __name__ == '__main__':
+    main()
diff --git a/tools/amalgamate_header.hpp b/tools/amalgamate_header.hpp
new file mode 100644
index 0000000..032eaf5
--- /dev/null
+++ b/tools/amalgamate_header.hpp
@@ -0,0 +1,85 @@
+// SPDX-License-Identifier: BSD-2-Clause OR MIT OR BSL-1.0
+/**
+ * @brief Thread pool-based implementation of parallel standard library algorithms. Single-file version.
+ * @see https://github.com/alugowski/poolSTL
+ * @author Adam Lugowski
+ * @copyright Copyright (C) 2023 Adam Lugowski.
+ *            Licensed under any of the following open-source licenses:
+ *            BSD-2-Clause license, MIT license, Boost Software License 1.0
+ *
+ *
+ * BSD-2-Clause license:
+ *
+ * Copyright (C) 2023 Adam Lugowski
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
+ * THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ *
+ *
+ * MIT License:
+ *
+ * Copyright (c) 2023 Adam Lugowski
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ *
+ *
+ *
+ * Boost Software License 1.0:
+ *
+ * Permission is hereby granted, free of charge, to any person or organization
+ * obtaining a copy of the software and accompanying documentation covered by
+ * this license (the "Software") to use, reproduce, display, distribute, execute,
+ * and transmit the Software, and to prepare derivative works of the Software,
+ * and to permit third-parties to whom the Software is furnished to do so,
+ * all subject to the following:
+ *
+ * The copyright notices in the Software and this entire statement, including
+ * the above license grant, this restriction and the following disclaimer, must
+ * be included in all copies of the Software, in whole or in part, and all
+ * derivative works of the Software, unless such copies or derivative works
+ * are solely in the form of machine-executable object code generated by a
+ * source language processor.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
+ * SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
+ * FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
diff --git a/tools/create_amalgamates.sh b/tools/create_amalgamates.sh
new file mode 100755
index 0000000..58d9ca3
--- /dev/null
+++ b/tools/create_amalgamates.sh
@@ -0,0 +1,7 @@
+#!/usr/bin/env bash
+
+python amalgamate.py ../include/poolstl/poolstl.hpp --header amalgamate_header.hpp -o poolstl.hpp
+
+# create a version that excludes the thread pool
+python amalgamate.py ../include/poolstl/poolstl.hpp --header amalgamate_header.hpp -o poolstl_nopool.hpp -e ../include/poolstl/internal/task_thread_pool.hpp
+