# `upper`
The `upper` filter converts a value to uppercase:
<table class="highlighttable"><tr><td class="linenos"><div class="linenodiv"><pre>1
2
3</pre></div></td><td class="code"><div class="highlight"><pre>{{ 'welcome'|upper }}
{# outputs 'WELCOME' #}
</pre></div></td></tr></table>
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