diff --git a/favicon-src.svg b/favicon-src.svg
new file mode 100644
index 0000000..afef0fe
--- /dev/null
+++ b/favicon-src.svg
@@ -0,0 +1,99 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<!-- Created with Inkscape (http://www.inkscape.org/) -->
+
+<svg
+   width="192"
+   height="192"
+   viewBox="0 0 50.799999 50.8"
+   version="1.1"
+   id="svg1"
+   inkscape:version="1.3 (0e150ed6c4, 2023-07-21)"
+   sodipodi:docname="favicon.svg"
+   inkscape:export-filename="favicon-2.png"
+   inkscape:export-xdpi="96"
+   inkscape:export-ydpi="96"
+   xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape"
+   xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
+   xmlns="http://www.w3.org/2000/svg"
+   xmlns:svg="http://www.w3.org/2000/svg">
+  <sodipodi:namedview
+     id="namedview1"
+     pagecolor="#ffffff"
+     bordercolor="#000000"
+     borderopacity="0.25"
+     inkscape:showpageshadow="2"
+     inkscape:pageopacity="0.0"
+     inkscape:pagecheckerboard="0"
+     inkscape:deskcolor="#d1d1d1"
+     inkscape:document-units="px"
+     inkscape:zoom="5.1635163"
+     inkscape:cx="98.963569"
+     inkscape:cy="99.060402"
+     inkscape:window-width="2058"
+     inkscape:window-height="1469"
+     inkscape:window-x="610"
+     inkscape:window-y="320"
+     inkscape:window-maximized="0"
+     inkscape:current-layer="g2" />
+  <defs
+     id="defs1">
+    <rect
+       x="-2.8229867"
+       y="7.5329568"
+       width="191.88329"
+       height="136.71218"
+       id="rect2" />
+    <rect
+       x="-2.8229866"
+       y="7.5329566"
+       width="191.88329"
+       height="136.71217"
+       id="rect2-0" />
+  </defs>
+  <g
+     inkscape:label="Layer 1"
+     inkscape:groupmode="layer"
+     id="layer1">
+    <rect
+       style="fill:#000000;stroke-width:0.252748"
+       id="rect1"
+       width="50.799999"
+       height="50.799999"
+       x="0"
+       y="0" />
+    <g
+       id="g2"
+       transform="translate(0,0.23697939)">
+      <g
+         id="g4"
+         transform="translate(0,-0.304314)">
+        <text
+           xml:space="preserve"
+           transform="matrix(0.26458333,0,0,0.26458333,0.72191975,-3.1336521)"
+           id="text1"
+           style="font-style:normal;font-variant:normal;font-weight:normal;font-stretch:normal;font-size:106.667px;font-family:'DejaVu Sans';-inkscape-font-specification:'DejaVu Sans';letter-spacing:10px;white-space:pre;shape-inside:url(#rect2);shape-padding:0.244802;display:inline;fill:#000000"
+           x="69.453331"
+           y="0"><tspan
+             x="8.4313917"
+             y="102.15264"
+             id="tspan5"><tspan
+               style="font-weight:bold;-inkscape-font-specification:'DejaVu Sans, Bold';text-align:center;text-anchor:middle;fill:#58a6ff"
+               id="tspan1">AS</tspan></tspan></text>
+        <text
+           xml:space="preserve"
+           transform="matrix(0.26458333,0,0,0.26458333,2.8069955,20.958796)"
+           id="text1-1"
+           style="font-style:normal;font-variant:normal;font-weight:normal;font-stretch:normal;font-size:106.667px;font-family:'DejaVu Sans';-inkscape-font-specification:'DejaVu Sans';letter-spacing:10px;white-space:pre;shape-inside:url(#rect2-0);shape-padding:0.244802;display:inline;fill:#000000"
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+           y="0"><tspan
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+             id="tspan8"><tspan
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+               id="tspan6">N</tspan><tspan
+               style="font-weight:bold;font-family:Sans;-inkscape-font-specification:'Sans, Bold';fill:#fffe58"
+               id="tspan7">1</tspan></tspan></text>
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+  </g>
+</svg>
diff --git a/favicon.svg b/favicon.svg
new file mode 100644
index 0000000..86b4e77
--- /dev/null
+++ b/favicon.svg
@@ -0,0 +1,2 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<svg width="192" height="192" version="1.1" viewBox="0 0 50.8 50.8" xmlns="http://www.w3.org/2000/svg"><rect width="50.8" height="50.8" stroke-width=".25275"/><g transform="translate(0 .23698)"><g transform="translate(0 -.30431)"><path transform="matrix(.26458 0 0 .26458 .72192 -3.1337)" d="m65.411 87.986h-31.354l-4.9479 14.167h-20.156l28.802-77.761h23.906l28.802 77.761h-20.156zm-26.354-14.427h21.302l-10.625-30.938zm125.83-46.719v16.458q-6.4063-2.8646-12.5-4.3229t-11.51-1.4583q-7.1875 0-10.625 1.9792t-3.4375 6.1459q0 3.125 2.2917 4.8958 2.3438 1.7188 8.4375 2.9688l8.5417 1.7188q12.969 2.6042 18.438 7.9167 5.4688 5.3125 5.4688 15.104 0 12.865-7.6563 19.167-7.6042 6.25-23.281 6.25-7.3958 0-14.844-1.4062-7.4479-1.4063-14.896-4.1667v-16.927q7.4479 3.9583 14.375 5.9896 6.9792 1.9792 13.438 1.9792 6.5625 0 10.052-2.1875t3.4896-6.25q0-3.6458-2.3958-5.625-2.3438-1.9792-9.4271-3.5417l-7.7604-1.7188q-11.667-2.5-17.083-7.9688-5.3646-5.4688-5.3646-14.74 0-11.615 7.5-17.865 7.5-6.25 21.563-6.25 6.4063 0 13.177 0.98959 6.7708 0.9375 14.01 2.8646z" fill="#58a6ff" aria-label="AS"/><g transform="matrix(.26458 0 0 .26458 2.807 20.959)" style="white-space:pre" aria-label="N1"><path d="m7.2136 24.392h22.396l28.281 53.334v-53.334h19.01v77.761h-22.396l-28.281-53.334v53.334h-19.01z" fill="#58a6ff"/><path d="m109.19 88.298h17.708v-50.261l-18.177 3.75v-13.646l18.073-3.75h19.063v63.906h17.708v13.854h-54.375z" fill="#fffe58"/></g></g></g></svg>
diff --git a/index.html b/index.html
index f3a19b2..cff1a8d 100644
--- a/index.html
+++ b/index.html
@@ -5,6 +5,7 @@
   <meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1">
   <title>ASN.1 JavaScript decoder</title>
   <link rel="stylesheet" href="index.css" type="text/css" id="theme-base">
+  <link rel="icon" type="image/png" sizes="192x192" href="favicon.svg">
 </head>
 <body>
   <header>