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HTML 

              
                <!DOCTYPE html>
<!-- saved from url=(0046)http://emn178.github.io/online-tools/sha1.html -->
<html><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8">

  <meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1">
  <meta name="viewport" content="width=device-width">
  <meta name="description" content="SHA1 online hash function">
  <title>SHA1 Online
  </title>
  <body>
    <br>
    <div id="body">
      <div id="main">
        <div class="input">
          <input id="input" placeholder="Input"></input>
        </div>
      
      <!-- Needed for code -->
        <div class="submit" hidden="true">
          <input id="execute" type="button" value="Hash" class="btn btn-default">
          <label>
            <input id="auto-update" type="checkbox" value="1" checked="checked">Auto Update
          </label>
        </div>
      <!-- Needed for code -->
      
        <br>
        <div class="output">
          <input id="output" placeholder="Output"></input>
        </div>
      </div>
    </div>
  </body></html>
!

CSS 

              
                input{
  width:300px;
}
!

JS 

              
                ;(function($, window, document, undefined) {
  window.method = null;

  $(document).ready(function() {
    var input = $('#input');
    var output = $('#output');
    var checkbox = $('#auto-update');
    var dropzone = $('#droppable-zone');
    var option = $('[data-option]');

    var execute = function() {
      try {
        output.val(method(input.val(), option.val()));
      } catch(e) {
        output.val(e);
      }
    }

    function autoUpdate() {
      if(!checkbox[0].checked) {
        return;
      }
      execute();
    }

    if(checkbox.length > 0) {
      input.bind('input propertychange', autoUpdate);
      option.bind('input propertychange', autoUpdate);
      checkbox.click(autoUpdate);
    }

    if(dropzone.length > 0) {
      var dropzonetext = $('#droppable-zone-text');

      $(document.body).bind('dragover drop', function(e) {
        e.preventDefault();
        return false;
      });

      if(!window.FileReader) {
        dropzonetext.text('Your browser dose not support.');
        $('input').attr('disabled', true);
        return;
      }

      dropzone.bind('dragover', function() {
        dropzone.addClass('hover');
      });

      dropzone.bind('dragleave', function() {
        dropzone.removeClass('hover');
      });

      dropzone.bind('drop', function(e) {
        dropzone.removeClass('hover');
        file = e.originalEvent.dataTransfer.files[0];
        dropzonetext.text(file.name);
        autoUpdate();
      });

      input.bind('change', function() {
        file = input[0].files[0];
        dropzonetext.text(file.name);
        autoUpdate();
      });

      var file;
      execute = function() {
        reader = new FileReader();
        var value = option.val();
        if (method.update) {
          var batch = 1024 * 1024 * 2;
          var start = 0;
          var total = file.size;
          var current = method;
          reader.onload = function (event) {
            try {
              current = current.update(event.target.result, value);
              asyncUpdate();
            } catch(e) {
              output.val(e);
            }
          };
          var asyncUpdate = function () {
            if (start < total) {
              output.val('hashing...' + (start / total * 100).toFixed(2) + '%');
              var end = Math.min(start + batch, total);
              reader.readAsArrayBuffer(file.slice(start, end));
              start = end;
            } else {
              output.val(current.hex());
            }
          };
          asyncUpdate();
        } else {
          output.val('hashing...');
          reader.onload = function (event) {
            try {
              output.val(method(event.target.result, value));
            } catch (e) {
              output.val(e);
            }
          };
          reader.readAsArrayBuffer(file);
        }
      };
    }

    $('#execute').click(execute);

    var parts = location.pathname.split('/');
    $('a[href="' + parts[parts.length - 1] + '"]').addClass('active');
  });
})(jQuery, window, document);



/*
 * [js-sha1]{@link https://github.com/emn178/js-sha1}
 *
 * @version 0.6.0
 * @author Chen, Yi-Cyuan [emn178@gmail.com]
 * @copyright Chen, Yi-Cyuan 2014-2017
 * @license MIT
 */
!function(){"use strict";function t(t){t?(f[0]=f[16]=f[1]=f[2]=f[3]=f[4]=f[5]=f[6]=f[7]=f[8]=f[9]=f[10]=f[11]=f[12]=f[13]=f[14]=f[15]=0,this.blocks=f):this.blocks=[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],this.h0=1732584193,this.h1=4023233417,this.h2=2562383102,this.h3=271733878,this.h4=3285377520,this.block=this.start=this.bytes=this.hBytes=0,this.finalized=this.hashed=!1,this.first=!0}var h="object"==typeof window?window:{},s=!h.JS_SHA1_NO_NODE_JS&&"object"==typeof process&&process.versions&&process.versions.node;s&&(h=global);var i=!h.JS_SHA1_NO_COMMON_JS&&"object"==typeof module&&module.exports,e="function"==typeof define&&define.amd,r="0123456789abcdef".split(""),o=[-2147483648,8388608,32768,128],n=[24,16,8,0],a=["hex","array","digest","arrayBuffer"],f=[],u=function(h){return function(s){return new t(!0).update(s)[h]()}},c=function(){var h=u("hex");s&&(h=p(h)),h.create=function(){return new t},h.update=function(t){return h.create().update(t)};for(var i=0;i<a.length;++i){var e=a[i];h[e]=u(e)}return h},p=function(t){var h=eval("require('crypto')"),s=eval("require('buffer').Buffer"),i=function(i){if("string"==typeof i)return h.createHash("sha1").update(i,"utf8").digest("hex");if(i.constructor===ArrayBuffer)i=new Uint8Array(i);else if(void 0===i.length)return t(i);return h.createHash("sha1").update(new s(i)).digest("hex")};return i};t.prototype.update=function(t){if(!this.finalized){var s="string"!=typeof t;s&&t.constructor===h.ArrayBuffer&&(t=new Uint8Array(t));for(var i,e,r=0,o=t.length||0,a=this.blocks;r<o;){if(this.hashed&&(this.hashed=!1,a[0]=this.block,a[16]=a[1]=a[2]=a[3]=a[4]=a[5]=a[6]=a[7]=a[8]=a[9]=a[10]=a[11]=a[12]=a[13]=a[14]=a[15]=0),s)for(e=this.start;r<o&&e<64;++r)a[e>>2]|=t[r]<<n[3&e++];else for(e=this.start;r<o&&e<64;++r)(i=t.charCodeAt(r))<128?a[e>>2]|=i<<n[3&e++]:i<2048?(a[e>>2]|=(192|i>>6)<<n[3&e++],a[e>>2]|=(128|63&i)<<n[3&e++]):i<55296||i>=57344?(a[e>>2]|=(224|i>>12)<<n[3&e++],a[e>>2]|=(128|i>>6&63)<<n[3&e++],a[e>>2]|=(128|63&i)<<n[3&e++]):(i=65536+((1023&i)<<10|1023&t.charCodeAt(++r)),a[e>>2]|=(240|i>>18)<<n[3&e++],a[e>>2]|=(128|i>>12&63)<<n[3&e++],a[e>>2]|=(128|i>>6&63)<<n[3&e++],a[e>>2]|=(128|63&i)<<n[3&e++]);this.lastByteIndex=e,this.bytes+=e-this.start,e>=64?(this.block=a[16],this.start=e-64,this.hash(),this.hashed=!0):this.start=e}return this.bytes>4294967295&&(this.hBytes+=this.bytes/4294967296<<0,this.bytes=this.bytes%4294967296),this}},t.prototype.finalize=function(){if(!this.finalized){this.finalized=!0;var t=this.blocks,h=this.lastByteIndex;t[16]=this.block,t[h>>2]|=o[3&h],this.block=t[16],h>=56&&(this.hashed||this.hash(),t[0]=this.block,t[16]=t[1]=t[2]=t[3]=t[4]=t[5]=t[6]=t[7]=t[8]=t[9]=t[10]=t[11]=t[12]=t[13]=t[14]=t[15]=0),t[14]=this.hBytes<<3|this.bytes>>>29,t[15]=this.bytes<<3,this.hash()}},t.prototype.hash=function(){var t,h,s=this.h0,i=this.h1,e=this.h2,r=this.h3,o=this.h4,n=this.blocks;for(t=16;t<80;++t)h=n[t-3]^n[t-8]^n[t-14]^n[t-16],n[t]=h<<1|h>>>31;for(t=0;t<20;t+=5)s=(h=(i=(h=(e=(h=(r=(h=(o=(h=s<<5|s>>>27)+(i&e|~i&r)+o+1518500249+n[t]<<0)<<5|o>>>27)+(s&(i=i<<30|i>>>2)|~s&e)+r+1518500249+n[t+1]<<0)<<5|r>>>27)+(o&(s=s<<30|s>>>2)|~o&i)+e+1518500249+n[t+2]<<0)<<5|e>>>27)+(r&(o=o<<30|o>>>2)|~r&s)+i+1518500249+n[t+3]<<0)<<5|i>>>27)+(e&(r=r<<30|r>>>2)|~e&o)+s+1518500249+n[t+4]<<0,e=e<<30|e>>>2;for(;t<40;t+=5)s=(h=(i=(h=(e=(h=(r=(h=(o=(h=s<<5|s>>>27)+(i^e^r)+o+1859775393+n[t]<<0)<<5|o>>>27)+(s^(i=i<<30|i>>>2)^e)+r+1859775393+n[t+1]<<0)<<5|r>>>27)+(o^(s=s<<30|s>>>2)^i)+e+1859775393+n[t+2]<<0)<<5|e>>>27)+(r^(o=o<<30|o>>>2)^s)+i+1859775393+n[t+3]<<0)<<5|i>>>27)+(e^(r=r<<30|r>>>2)^o)+s+1859775393+n[t+4]<<0,e=e<<30|e>>>2;for(;t<60;t+=5)s=(h=(i=(h=(e=(h=(r=(h=(o=(h=s<<5|s>>>27)+(i&e|i&r|e&r)+o-1894007588+n[t]<<0)<<5|o>>>27)+(s&(i=i<<30|i>>>2)|s&e|i&e)+r-1894007588+n[t+1]<<0)<<5|r>>>27)+(o&(s=s<<30|s>>>2)|o&i|s&i)+e-1894007588+n[t+2]<<0)<<5|e>>>27)+(r&(o=o<<30|o>>>2)|r&s|o&s)+i-1894007588+n[t+3]<<0)<<5|i>>>27)+(e&(r=r<<30|r>>>2)|e&o|r&o)+s-1894007588+n[t+4]<<0,e=e<<30|e>>>2;for(;t<80;t+=5)s=(h=(i=(h=(e=(h=(r=(h=(o=(h=s<<5|s>>>27)+(i^e^r)+o-899497514+n[t]<<0)<<5|o>>>27)+(s^(i=i<<30|i>>>2)^e)+r-899497514+n[t+1]<<0)<<5|r>>>27)+(o^(s=s<<30|s>>>2)^i)+e-899497514+n[t+2]<<0)<<5|e>>>27)+(r^(o=o<<30|o>>>2)^s)+i-899497514+n[t+3]<<0)<<5|i>>>27)+(e^(r=r<<30|r>>>2)^o)+s-899497514+n[t+4]<<0,e=e<<30|e>>>2;this.h0=this.h0+s<<0,this.h1=this.h1+i<<0,this.h2=this.h2+e<<0,this.h3=this.h3+r<<0,this.h4=this.h4+o<<0},t.prototype.hex=function(){this.finalize();var t=this.h0,h=this.h1,s=this.h2,i=this.h3,e=this.h4;return r[t>>28&15]+r[t>>24&15]+r[t>>20&15]+r[t>>16&15]+r[t>>12&15]+r[t>>8&15]+r[t>>4&15]+r[15&t]+r[h>>28&15]+r[h>>24&15]+r[h>>20&15]+r[h>>16&15]+r[h>>12&15]+r[h>>8&15]+r[h>>4&15]+r[15&h]+r[s>>28&15]+r[s>>24&15]+r[s>>20&15]+r[s>>16&15]+r[s>>12&15]+r[s>>8&15]+r[s>>4&15]+r[15&s]+r[i>>28&15]+r[i>>24&15]+r[i>>20&15]+r[i>>16&15]+r[i>>12&15]+r[i>>8&15]+r[i>>4&15]+r[15&i]+r[e>>28&15]+r[e>>24&15]+r[e>>20&15]+r[e>>16&15]+r[e>>12&15]+r[e>>8&15]+r[e>>4&15]+r[15&e]},t.prototype.toString=t.prototype.hex,t.prototype.digest=function(){this.finalize();var t=this.h0,h=this.h1,s=this.h2,i=this.h3,e=this.h4;return[t>>24&255,t>>16&255,t>>8&255,255&t,h>>24&255,h>>16&255,h>>8&255,255&h,s>>24&255,s>>16&255,s>>8&255,255&s,i>>24&255,i>>16&255,i>>8&255,255&i,e>>24&255,e>>16&255,e>>8&255,255&e]},t.prototype.array=t.prototype.digest,t.prototype.arrayBuffer=function(){this.finalize();var t=new ArrayBuffer(20),h=new DataView(t);return h.setUint32(0,this.h0),h.setUint32(4,this.h1),h.setUint32(8,this.h2),h.setUint32(12,this.h3),h.setUint32(16,this.h4),t};var y=c();i?module.exports=y:(h.sha1=y,e&&define(function(){return y}))}();

method = sha1;
!
999px

Console