diff --git a/tools/mario.png b/tools/mario.png
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index ba5cff9..0000000
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diff --git a/tools/sprite2code.html b/tools/sprite2code.html
deleted file mode 100644
index 84c7055..0000000
--- a/tools/sprite2code.html
+++ /dev/null
@@ -1,128 +0,0 @@
-<script src='jquery.min.js'></script>
-<style type="text/css">
-body, html {
-    background: #eee;
-    color: black;
-    font-family: monospace;
-    font-size: 11px;
-    text-align: center;
-}
-h2 {
-    font-size: 16px;
-}
-h3 {
-    font-size: 13px;
-}
-#main {
-    background: white;
-    margin: auto;
-    max-width: 520px;
-    text-align: left;
-    padding: 60px 40px;
-}
-#out {
-    font-size: 10px;
-    max-width: 100%;
-    overflow: auto;
-}
-li {
-    margin-bottom: 10px;
-}
-</style>
-<script>
-var sprites_image;
-
-function generate() {
-    if (!sprites_image) {
-        alert("source image not valid");
-        return;
-    }
-    var canvas=document.createElement('canvas');
-    canvas.width=sprites_image.width;
-    canvas.height=sprites_image.height;
-    var ctx=canvas.getContext('2d');
-    ctx.drawImage(sprites_image, 0, 0);
-    var cdata = ctx.getImageData(0, 0, sprites_image.width, sprites_image.height);
-    var data=cdata.data;
-
-    var ostring="";
-    var icount=0, isize=0;
-
-    for (var y = 0; y < cdata.height; y++) {
-        for (var s=0; s<64; s++) {
-            ostring+="//SPRITE "+s+" y="+y+" programcounter="+isize+"\n";
-
-            for (var lx=0; lx<6; lx++) {
-                var x=lx+s*6;
-                var idx = (x + y * cdata.width) * 4;
-                var r = data[idx + 0];
-                var g = data[idx + 1];
-                var b = data[idx + 2];
-                var a = data[idx + 3];
-                var packed;
-                if (a<128) {
-                    packed=0xff;
-                } else {
-                    packed = (parseInt(r*(4/256))<<6) |
-                             (parseInt(g*(4/256))<<4) |
-                             (parseInt(b*(4/256))<<2);
-                }
-                ostring+="\tldi r16, "+packed+";\n\tout VIDEOPORT, r16;\n";
-                isize+=4;
-                icount+=2;
-            }
-            ostring+="\tjmp next_block;\n";
-            isize+=4;
-            icount++;
-        }
-    }
-    var header="//font generated from SPRITE2CODE - by Sandro Maffiodo\n//code size="+isize+" instr count="+icount+"\n";
-    $('#out').text(header+ostring);
-}
-function boot() {
-    $('#f').on('change', function(ev) {
-        var f = ev.target.files[0];
-        var fr = new FileReader();
-        fr.onload = function(ev2) {
-            console.dir(ev2);
-            sprites_image=new Image;
-            sprites_image.src=ev2.target.result;
-            $('#preview').attr('src', ev2.target.result);
-            $('#previewbox').show();
-        };
-        fr.readAsDataURL(f);
-    });
-}
-$(document).ready(boot);
-</script>
-<body>
-    <div id='main'>
-        <h2><b>2BITFONT</b></h2>
-        by Sandro Maffiodo
-
-        <h3>WHAT IS:</h3>
-        SPRITES2CODE is a simple web tool to generate sprites code for AVR/Arduino. <br>
-        <br>
-        <center><!--<img width="100%" src='2bitfont.png'/>--></center>
-        <br>
-        TODO...
-        
-        <h3>RULES:</h3>
-        <ul>
-            <li>TODO...</li>
-        </ul>
-        
-        <h3>INPUT:</h3>
-        source image: <input id="f" type="file" /><br>
-        <div id='previewbox' style='display: none'>
-            <br>
-            <img id='preview' style='max-width: 100%'/>
-        </div>
-        <br>
-        
-        <h3>OUTPUT:</h3>
-        <button onclick='generate()'>GENERATE</button>
-        <pre id='out'></pre>
-    </div>
-</body>
-
diff --git a/tools/ufont3.png b/tools/ufont3.png
deleted file mode 100644
index 21b3110..0000000
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