diff --git a/tools/compliance/cmd/htmlnotice.go b/tools/compliance/cmd/htmlnotice.go
new file mode 100644
index 0000000..cff1ff8
--- /dev/null
+++ b/tools/compliance/cmd/htmlnotice.go
@@ -0,0 +1,216 @@
+// Copyright 2021 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package main
+
+import (
+	"bytes"
+	"compliance"
+	"flag"
+	"fmt"
+	"html"
+	"io"
+	"io/fs"
+	"os"
+	"path/filepath"
+	"strings"
+)
+
+var (
+	outputFile  = flag.String("o", "-", "Where to write the NOTICE text file. (default stdout)")
+	includeTOC  = flag.Bool("toc", true, "Whether to include a table of contents.")
+	stripPrefix = flag.String("strip_prefix", "", "Prefix to remove from paths. i.e. path to root")
+	title       = flag.String("title", "", "The title of the notice file.")
+
+	failNoneRequested = fmt.Errorf("\nNo license metadata files requested")
+	failNoLicenses    = fmt.Errorf("No licenses found")
+)
+
+type context struct {
+	stdout      io.Writer
+	stderr      io.Writer
+	rootFS      fs.FS
+	includeTOC  bool
+	stripPrefix string
+	title       string
+}
+
+func init() {
+	flag.Usage = func() {
+		fmt.Fprintf(os.Stderr, `Usage: %s {options} file.meta_lic {file.meta_lic...}
+
+Outputs an html NOTICE.html file.
+
+Options:
+`, filepath.Base(os.Args[0]))
+		flag.PrintDefaults()
+	}
+}
+
+func main() {
+	flag.Parse()
+
+	// Must specify at least one root target.
+	if flag.NArg() == 0 {
+		flag.Usage()
+		os.Exit(2)
+	}
+
+	if len(*outputFile) == 0 {
+		flag.Usage()
+		fmt.Fprintf(os.Stderr, "must specify file for -o; use - for stdout\n")
+		os.Exit(2)
+	} else {
+		dir, err := filepath.Abs(filepath.Dir(*outputFile))
+		if err != nil {
+			fmt.Fprintf(os.Stderr, "cannot determine path to %q: %w\n", *outputFile, err)
+			os.Exit(1)
+		}
+		fi, err := os.Stat(dir)
+		if err != nil {
+			fmt.Fprintf(os.Stderr, "cannot read directory %q of %q: %w\n", dir, *outputFile, err)
+			os.Exit(1)
+		}
+		if !fi.IsDir() {
+			fmt.Fprintf(os.Stderr, "parent %q of %q is not a directory\n", dir, *outputFile)
+			os.Exit(1)
+		}
+	}
+
+	var ofile io.Writer
+	ofile = os.Stdout
+	if *outputFile != "-" {
+		ofile = &bytes.Buffer{}
+	}
+
+	ctx := &context{ofile, os.Stderr, os.DirFS("."), *includeTOC, *stripPrefix, *title}
+
+	err := htmlNotice(ctx, flag.Args()...)
+	if err != nil {
+		if err == failNoneRequested {
+			flag.Usage()
+		}
+		fmt.Fprintf(os.Stderr, "%s\n", err.Error())
+		os.Exit(1)
+	}
+	if *outputFile != "-" {
+		err := os.WriteFile(*outputFile, ofile.(*bytes.Buffer).Bytes(), 0666)
+		if err != nil {
+			fmt.Fprintf(os.Stderr, "could not write output to %q: %w\n", *outputFile, err)
+			os.Exit(1)
+		}
+	}
+	os.Exit(0)
+}
+
+// htmlNotice implements the htmlnotice utility.
+func htmlNotice(ctx *context, files ...string) error {
+	// Must be at least one root file.
+	if len(files) < 1 {
+		return failNoneRequested
+	}
+
+	// Read the license graph from the license metadata files (*.meta_lic).
+	licenseGraph, err := compliance.ReadLicenseGraph(ctx.rootFS, ctx.stderr, files)
+	if err != nil {
+		return fmt.Errorf("Unable to read license metadata file(s) %q: %v\n", files, err)
+	}
+	if licenseGraph == nil {
+		return failNoLicenses
+	}
+
+	// rs contains all notice resolutions.
+	rs := compliance.ResolveNotices(licenseGraph)
+
+	ni, err := compliance.IndexLicenseTexts(ctx.rootFS, licenseGraph, rs)
+	if err != nil {
+		return fmt.Errorf("Unable to read license text file(s) for %q: %v\n", files, err)
+	}
+
+	fmt.Fprintln(ctx.stdout, "<!DOCTYPE html>")
+	fmt.Fprintln(ctx.stdout, "<html><head>\n")
+	fmt.Fprintln(ctx.stdout, "<style type=\"text/css\">")
+	fmt.Fprintln(ctx.stdout, "body { padding: 2px; margin: 0; }")
+	fmt.Fprintln(ctx.stdout, "ul { list-style-type: none; margin: 0; padding: 0; }")
+	fmt.Fprintln(ctx.stdout, "li { padding-left: 1em; }")
+	fmt.Fprintln(ctx.stdout, ".file-list { margin-left: 1em; }")
+	fmt.Fprintln(ctx.stdout, "</style>\n")
+	if 0 < len(ctx.title) {
+		fmt.Fprintf(ctx.stdout, "<title>%s</title>\n", html.EscapeString(ctx.title))
+	}
+	fmt.Fprintln(ctx.stdout, "</head>")
+	fmt.Fprintln(ctx.stdout, "<body>")
+
+	if 0 < len(ctx.title) {
+		fmt.Fprintf(ctx.stdout, "  <h1>%s</h1>\n", html.EscapeString(ctx.title))
+	}
+	ids := make(map[string]string)
+	if ctx.includeTOC {
+		fmt.Fprintln(ctx.stdout, "  <ul class=\"toc\">")
+		i := 0
+		for installPath := range ni.InstallPaths() {
+			id := fmt.Sprintf("id%d", i)
+			i++
+			ids[installPath] = id
+			var p string
+			if 0 < len(ctx.stripPrefix) && strings.HasPrefix(installPath, ctx.stripPrefix) {
+				p = installPath[len(ctx.stripPrefix):]
+				if 0 == len(p) {
+					if 0 < len(ctx.title) {
+						p = ctx.title
+					} else {
+						p = "root"
+					}
+				}
+			} else {
+				p = installPath
+			}
+			fmt.Fprintf(ctx.stdout, "    <li id=\"%s\"><strong>%s</strong>\n      <ul>\n", id, html.EscapeString(p))
+			for _, h := range ni.InstallHashes(installPath) {
+				libs := ni.InstallHashLibs(installPath, h)
+				fmt.Fprintf(ctx.stdout, "        <li><a href=\"#%s\">%s</a>\n", h.String(), html.EscapeString(strings.Join(libs, ", ")))
+			}
+			fmt.Fprintln(ctx.stdout, "      </ul>")
+		}
+		fmt.Fprintln(ctx.stdout, "  </ul><!-- toc -->")
+	}
+	for h := range ni.Hashes() {
+		fmt.Fprintln(ctx.stdout, "  <hr>")
+		for _, libName := range ni.HashLibs(h) {
+			fmt.Fprintf(ctx.stdout, "  <strong>%s</strong> used by:\n    <ul class=\"file-list\">\n", html.EscapeString(libName))
+			for _, installPath := range ni.HashLibInstalls(h, libName) {
+				if id, ok := ids[installPath]; ok {
+					if 0 < len(ctx.stripPrefix) && strings.HasPrefix(installPath, ctx.stripPrefix) {
+						fmt.Fprintf(ctx.stdout, "      <li><a href=\"#%s\">%s</a>\n", id, html.EscapeString(installPath[len(ctx.stripPrefix):]))
+					} else {
+						fmt.Fprintf(ctx.stdout, "      <li><a href=\"#%s\">%s</a>\n", id, html.EscapeString(installPath))
+					}
+				} else {
+					if 0 < len(ctx.stripPrefix) && strings.HasPrefix(installPath, ctx.stripPrefix) {
+						fmt.Fprintf(ctx.stdout, "      <li>%s\n", html.EscapeString(installPath[len(ctx.stripPrefix):]))
+					} else {
+						fmt.Fprintf(ctx.stdout, "      <li>%s\n", html.EscapeString(installPath))
+					}
+				}
+			}
+			fmt.Fprintf(ctx.stdout, "    </ul>\n")
+		}
+		fmt.Fprintf(ctx.stdout, "  </ul>\n  <a id=\"%s\"/><pre class=\"license-text\">", h.String())
+		fmt.Fprintln(ctx.stdout, html.EscapeString(string(ni.HashText(h))))
+		fmt.Fprintln(ctx.stdout, "  </pre><!-- license-text -->")
+	}
+	fmt.Fprintln(ctx.stdout, "</body></html>")
+
+	return nil
+}