diff --git a/sources/lib/Controller/PommProfilerController.php b/sources/lib/Controller/PommProfilerController.php
index 5226dd8..6cf8b75 100644
--- a/sources/lib/Controller/PommProfilerController.php
+++ b/sources/lib/Controller/PommProfilerController.php
@@ -54,6 +54,25 @@ public function __construct(
      * @return Response
      */
     public function explainAction(Request $request, $token, $index_query)
+    {
+        return $this->explain($request, $token, $index_query, 'raw');
+    }
+
+    /**
+     * Controller to explain a SQL query as graph.
+     *
+     * @param $request
+     * @param string $token
+     * @param int $index_query
+     *
+     * @return Response
+     */
+    public function graphAction(Request $request, $token, $index_query)
+    {
+        return $this->explain($request, $token, $index_query, 'json');
+    }
+
+    public function explain(Request $request, $token, $index_query, $format)
     {
         $panel = 'pomm';
         $page  = 'home';
@@ -81,11 +100,24 @@ public function explainAction(Request $request, $token, $index_query)
 
         $query_data = $profile->getCollector($panel)->getQueries()[$index_query];
 
+        $explain = 'explain';
+
+        if ($format === 'json') {
+            $explain .= ' (COSTS, VERBOSE, FORMAT JSON)';
+        }
+
         $explain = $this->pomm[$query_data['session_stamp']]
             ->getClientUsingPooler('query_manager', null)
-            ->query(sprintf("explain %s", $query_data['sql']), $query_data['parameters']);
+            ->query(sprintf("%s %s", $explain, $query_data['sql']), $query_data['parameters']);
+
+        if ($format === 'json') {
+            $template = '@Pomm/Profiler/graph.html.twig';
+        }
+        else {
+            $template = '@Pomm/Profiler/explain.html.twig';
+        }
 
-        return new Response($this->twig->render('@Pomm/Profiler/explain.html.twig', array(
+        return new Response($this->twig->render($template, array(
             'token' => $token,
             'profile' => $profile,
             'collector' => $profile->getCollector($panel),
diff --git a/sources/lib/Twig/Extension.php b/sources/lib/Twig/Extension.php
new file mode 100644
index 0000000..84d476d
--- /dev/null
+++ b/sources/lib/Twig/Extension.php
@@ -0,0 +1,58 @@
+<?php
+
+namespace PommProject\SymfonyBridge\Twig;
+
+final class Extension extends \Twig\Extension\AbstractExtension
+{
+    public function getFunctions()
+    {
+        return array(
+            new \Twig\TwigFunction('color', array($this, 'color')),
+        );
+    }
+
+    /*
+     * https://stackoverflow.com/questions/2353211/hsl-to-rgb-color-conversion
+     */
+    public function color($percent)
+    {
+        $hue = (100 - $percent) * 1.2 / 360;
+        $rgb = $this->hslToRgb($hue, .9, .4);
+        return sprintf("rgb(%d, %d, %d)", $rgb[0], $rgb[1], $rgb[2]);
+    }
+
+    private function hslToRgb($h, $s, $l)
+    {
+        $r = $g = $b = $l;
+
+        if ($s !== 0) {
+            $q = $l < 0.5 ? $l * (1 + $s) : $l + $s - $l * $s;
+            $p = 2 * $l - $q;
+            $r = $this->hue2rgb($p, $q, $h + 1 / 3);
+            $g = $this->hue2rgb($p, $q, $h);
+            $b = $this->hue2rgb($p, $q, $h - 1 / 3);
+        }
+
+        return array($r * 255, $g * 255, $b * 255);
+    }
+
+    private function hue2rgb($p, $q, $t)
+    {
+        if ($t < 0) {
+            $t += 1;
+        }
+        if ($t > 1) {
+            $t -= 1;
+        }
+        if ($t < 1 / 6) {
+            return $p + ($q - $p) * 6 * $t;
+        }
+        if ($t < 1 / 2) {
+            return $q;
+        }
+        if ($t < 2 / 3) {
+            return $p + ($q - $p) * (2 / 3 - $t) * 6;
+        }
+        return $p;
+    }
+}
diff --git a/views/Profiler/db.html.twig b/views/Profiler/db.html.twig
index 2062159..24876b4 100644
--- a/views/Profiler/db.html.twig
+++ b/views/Profiler/db.html.twig
@@ -79,7 +79,15 @@
                                 <img alt="-" src="data:image/gif;base64,R0lGODlhEgASAMQSANft94TG57Hb8GS44ez1+mC24IvK6ePx+Wa44dXs92+942e54o3L6W2844/M6dnu+P/+/l614P///wAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAACH5BAEAABIALAAAAAASABIAQAVCoCQBTBOd6Kk4gJhGBCTPxysJb44K0qD/ER/wlxjmisZkMqBEBW5NHrMZmVKvv9hMVsO+hE0EoNAstEYGxG9heIhCADs=" style="display: none; width: 12px; height: 12px;" />
                                 <span style="vertical-align:top">Explain query</span>
                             </a>]
+
+                                [<a href="{{ path('_pomm_profiler_graph', { 'token': token, "index_query": i}) }}" onclick="return explain(this);" style="text-decoration: none;" title="Explains the query as graph" data-target-id="graph-{{ i }}" >
+                                <img alt="+" src="data:image/gif;base64,R0lGODlhEgASAMQTANft99/v+Ga44bHb8ITG52S44dXs9+z1+uPx+YvK6WC24G+944/M6W28443L6dnu+Ge54v/+/l614P///wAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAACH5BAEAABMALAAAAAASABIAQAVS4DQBTiOd6LkwgJgeUSzHSDoNaZ4PU6FLgYBA5/vFID/DbylRGiNIZu74I0h1hNsVxbNuUV4d9SsZM2EzWe1qThVzwWFOAFCQFa1RQq6DJB4iIQA7" style="display: inline; width: 12px; height: 12px;" />
+                                <img alt="-" src="data:image/gif;base64,R0lGODlhEgASAMQSANft94TG57Hb8GS44ez1+mC24IvK6ePx+Wa44dXs92+942e54o3L6W2844/M6dnu+P/+/l614P///wAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAACH5BAEAABIALAAAAAASABIAQAVCoCQBTBOd6Kk4gJhGBCTPxysJb44K0qD/ER/wlxjmisZkMqBEBW5NHrMZmVKvv9hMVsO+hE0EoNAstEYGxG9heIhCADs=" style="display: none; width: 12px; height: 12px;" />
+                                <span style="vertical-align:top">Explain graph</span>
+                            </a>]
+
                                 <div id="explain-{{ i }}" class="loading"></div>
+                                <div id="graph-{{ i }}" class="loading"></div>
                             {% endif %}
                         </td>
                     </tr>
@@ -209,5 +217,165 @@
         code.explain{
             display: block;
         }
+
+        .explain {
+            line-height: 1.5;
+        }
+
+        table tbody .explain div {
+            margin: 0;
+        }
+
+        .explain a {
+            color: #007BFF;
+            text-decoration: none;
+            background-color: transparent;
+        }
+
+        .explain .progress {
+            background-color: #E9ECEF;
+            border-radius: .25rem;
+            font-size: .75rem;
+            height: 1rem;
+            overflow: hidden;
+        }
+
+        .explain .progress-bar {
+            color: black;
+        }
+
+        .explain .text-muted {
+            color: #6C757D !important;
+        }
+
+        .explain .close {
+            cursor: pointer;
+            color: #000;
+            text-shadow: 0 1px 0 #FFF;
+            opacity: .5;
+            font-size: 1.5rem;
+            font-weight: 700;
+            line-height: 1;
+            float: right;
+        }
+
+        .explain ul {
+            position: relative;
+            padding: 1em 0;
+            white-space: nowrap;
+            margin: 0 auto;
+            text-align: center;
+        }
+
+        .explain ul::after {
+            content: '';
+            display: table;
+            clear: both;
+        }
+
+        .explain ul::before {
+            content: '';
+            position: absolute;
+            top: 0;
+            left: 50%;
+            border-left: 1px solid #DEDEDE;
+            width: 0;
+            height: 1em;
+        }
+
+        .explain li {
+            display: inline-block;
+            vertical-align: top;
+            text-align: center;
+            list-style-type: none;
+            position: relative;
+            padding: 1em .5em 0 .5em;
+            margin: 0 -4px 0 -4px;
+        }
+
+        .explain li::before, .explain li::after {
+            content: '';
+            position: absolute;
+            top: 0;
+            right: 50%;
+            border-top: 1px solid #DEDEDE;
+            width: 50%;
+            height: 1em;
+        }
+
+        .explain li::after {
+            right: auto;
+            left: 50%;
+            border-left: 1px solid #DEDEDE;
+        }
+
+        .explain li:only-child::after, .explain li:only-child::before {
+            display: none;
+        }
+
+        .explain li:only-child {
+            padding-top: 0;
+        }
+
+        .explain li:first-child::before, .explain li:last-child::after {
+            border: 0 none;
+        }
+
+        .explain li:last-child::before {
+            border-right: 1px solid #DEDEDE;
+            border-radius: 0 5px 0 0;
+        }
+
+        .explain li:first-child::after {
+            border-radius: 5px 0 0 0;
+        }
+
+        .explain li .node {
+            border: 1px solid #DEDEDE;
+            padding: .5em .75em;
+            text-decoration: none;
+            display: inline-block;
+            border-radius: 5px;
+            color: #333;
+            position: relative;
+            top: 1px;
+            box-shadow: 1px 1px 3px 0px rgba(0, 0, 0, 0.1);
+        }
+
+        .explain th, .explain td {
+            padding: .75rem;
+            border-top: 1px solid #E0E0E0;
+        }
+
+        .explain td:last-child {
+            white-space: normal;
+        }
+
+        .explain .rows {
+            font-size: .75rem;
+            text-align: left;
+        }
+
+        .explain .detail {
+            display: none;
+            text-align: left;
+        }
+
+        .explain .detail:target {
+            z-index: 2;
+            display: block;
+            position: fixed;
+            top: 0;
+            left: 0;
+            width: 100%;
+            height: 100%;
+            background-color: rgba(0, 0, 0, .5);
+        }
+
+        .explain .detail div {
+            width: 450px;
+            margin: 1em auto 0 auto;
+            background-color: white;
+        }
     </style>
 {% endblock %}
diff --git a/views/Profiler/graph.html.twig b/views/Profiler/graph.html.twig
new file mode 100644
index 0000000..dd5dfde
--- /dev/null
+++ b/views/Profiler/graph.html.twig
@@ -0,0 +1,97 @@
+{% macro progress(percent, title) %}
+    <div class="progress">
+        <div
+            class="progress-bar"
+            role="progressbar"
+            style="width: {{ percent }}%; background-color: {{ color(percent) }};"
+            ria-valuenow="{{ percent }}"
+            aria-valuemin="0"
+            aria-valuemax="100"
+        >{{ title }}</div>
+    </div>
+{% endmacro %}
+
+{% macro info(data) %}
+    <div class="info">
+        {% if data['Node Type'] == 'Sort' and data['Sort Key'] is defined %}
+            <span class="text-muted">by</span> {{ data['Sort Key'] | join(',') }}
+        {% elseif data['Node Type'] == 'Aggregate' and data['Group Key'] is defined %}
+            <span class="text-muted">by</span> {{ data['Group Key'] | join(',') }}
+        {% elseif data['Node Type'] == 'Seq Scan' or data['Node Type'] == 'Index Only Scan' %}
+            <span class="text-muted">on</span> {{ data['Schema'] }}.{{ data['Relation Name'] }}({{ data['Alias'] }})
+        {% elseif data['Node Type'] == 'Hash Join' %}
+            <div>
+                {% if data['Join Type'] is defined %}
+                    {{ data['Join Type'] }} <span class="text-muted">join</span>
+                {% endif %}
+            </div>
+            <div>
+                {% if data['Hash Cond'] is defined %}
+                    <span class="text-muted">on</span> {{ data['Hash Cond'] }}
+                {% endif %}
+            </div>
+        {% endif %}
+    </div>
+{% endmacro %}
+
+{% macro detail(data) %}
+    <div>
+        <a href="#" class="close">x</a>
+        <table class="table table-sm">
+            <tbody>
+                {% for key, value in data %}
+                    {% if key != 'Plans' %}
+                        <tr>
+                            <td>{{ key }}</td>
+                            {% if value is same as(true) %}
+                                <td>true</td>
+                            {% elseif value is same as(false) %}
+                                <td>false</td>
+                            {% else %}
+                                <td>{{ value | join(', ') }}</td>
+                            {% endif %}
+                        </tr>
+                    {% endif %}
+                {% endfor %}
+            </tbody>
+        </table>
+    </div>
+{% endmacro %}
+
+{% macro plan(root, data) %}
+    {% import _self as self %}
+
+    {% set id = random() %}
+    <li>
+        <div class="node">
+            <a href="#node-{{ id }}">{{ data['Node Type'] }}</a>
+            {% set percent = data['Total Cost'] / root['Total Cost'] * 100 %}
+
+            {{ self.info(data) }}
+            {{ self.progress(percent, "Score: " ~ data['Total Cost']) }}
+            <div class="rows">Rows: {{ data['Plan Rows'] }}</div>
+            <div class="detail" id="node-{{ id }}">
+                {{ self.detail(data) }}
+            </div>
+        </div>
+
+        {% if data['Plans'] is defined %}
+            <ul>
+                {% for plan in data['Plans'] %}
+                    {{ self.plan(root, plan) }}
+                {% endfor %}
+            </ul>
+        {% endif %}
+    </li>
+{% endmacro %}
+
+{% block content %}
+    {% import _self as self %}
+
+    <div class="explain">
+        <ul>
+            {% set plan = explain.get(0)['QUERY PLAN'] %}
+            {{ self.plan(plan[0]['Plan'], plan[0]['Plan']) }}
+        </ul>
+    </div>
+{% endblock %}