diff --git a/bin/remarkable.js b/bin/remarkable.js
index b1899f2..d1202ca 100755
--- a/bin/remarkable.js
+++ b/bin/remarkable.js
@@ -12,7 +12,7 @@ var Remarkable = require('..');
 ////////////////////////////////////////////////////////////////////////////////
 
 var cli = new argparse.ArgumentParser({
-  prog: 'js-yaml',
+  prog: 'remarkable',
   version: require('../package.json').version,
   addHelp: true
 });
diff --git a/bin/specsplit.js b/bin/specsplit.js
new file mode 100755
index 0000000..a8af764
--- /dev/null
+++ b/bin/specsplit.js
@@ -0,0 +1,115 @@
+#!/usr/bin/env node
+/*eslint no-console:0*/
+
+// Fixtures generator from stmd specs. Split spec to working / not working
+// examples, or show total stat.
+
+'use strict';
+
+
+var fs        = require('fs');
+var util      = require('util');
+var argparse  = require('argparse');
+
+var Remarkable = require('..');
+
+
+var cli = new argparse.ArgumentParser({
+  prog: 'specsplit',
+  version: require('../package.json').version,
+  addHelp: true
+});
+
+cli.addArgument([ 'type' ], {
+  help: 'type of examples to filter',
+  nargs: '?',
+  choices: [ 'good', 'bad' ]
+});
+
+cli.addArgument([ 'spec' ], {
+  help: 'spec file to read'
+});
+
+var options = cli.parseArgs();
+
+////////////////////////////////////////////////////////////////////////////////
+
+function readFile(filename, encoding, callback) {
+  if (options.file === '-') {
+    // read from stdin
+
+    var chunks = [];
+
+    process.stdin.on('data', function(chunk) {
+      chunks.push(chunk);
+    });
+
+    process.stdin.on('end', function() {
+      return callback(null, Buffer.concat(chunks).toString(encoding));
+    });
+  } else {
+    fs.readFile(filename, encoding, callback);
+  }
+}
+
+
+////////////////////////////////////////////////////////////////////////////////
+
+readFile(options.spec, 'utf8', function (error, input) {
+  var good = [], bad = [],
+      markdown = new Remarkable({
+        xhtml: true,                  // write <hr /> instead of <hr> and so on
+        codeLangPrefix: 'language-'
+      });
+
+  if (error) {
+    if (error.code === 'ENOENT') {
+      process.stderr.write('File not found: ' + options.spec);
+      process.exit(2);
+    }
+
+    process.stderr.write(error.stack || error.message || String(error));
+    process.exit(1);
+  }
+
+  input = input.replace(/→/g, '\t');
+
+  input.replace(/^\.\n([\s\S]*?)^\.\n([\s\S]*?)^\.$/gm, function(__, md, html, offset, orig) {
+
+    var result = {
+      md: md,
+      html: html,
+      line: orig.slice(0, offset).split(/\r?\n/g).length,
+      err: ''
+    };
+
+    try {
+      if (markdown.render(md) === html) {
+        good.push(result);
+      } else {
+        result.err = markdown.render(md);
+        bad.push(result);
+      }
+    } catch (___) {
+      bad.push(result);
+    }
+  });
+
+  if (!options.type) {
+    console.log(util.format('passed samples: %s, failed samples: %s', good.length, bad.length));
+  } else {
+    var data = options.type === 'good' ? good : bad;
+
+    data.forEach(function (sample) {
+      console.log(util.format(
+        '~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\n' +
+        'src line: %s\n\n.\n%s.\n%s.\n',
+        sample.line, sample.md, sample.html));
+      if (sample.err) {
+        console.log(util.format('error:\n\n%s\n', sample.err));
+      }
+    });
+  }
+
+  process.exit(0);
+});