Ashley

<p>Expanding Archives adds a widget that shows your old posts in an expandable/collapsible format. Each post is categorized under its year and month, so you can expand all the posts in a given month and year.</p>
<p>This plugin comes with very minimal CSS styling so you can easily customize it to match your design.</p>
<p>JavaScript is required. No IE support.</p>


Expanding Archives

This plugin adds a new widget where you can view your old posts by expanding certain years and months.

Matthew Petroff

<p>This plugin adds a widget to display archive links using purely CSS-based collapsing; no JavaScript is used.</p>
<h4>Options</h4>
<ul>
<li>Post counts can optionally be displayed next to the archive links</li>
<li>Choice of either +/- or arrows to indicate expansion</li>
<li>Option to never automatically expand list for current post / year</li>
<li>Choice between displaying archive links in reverse chronological order or chronological order</li>
<li>Decades can be collapsed</li>
</ul>
<h4>1.6 (2021-04-03)</h4>
<ul>
<li>Added support for collapsing decades (thanks to @PHil-PlainTech)</li>
</ul>
<h4>1.5 (2019-05-05)</h4>
<ul>
<li>Fix for warning message in logs</li>
</ul>
<h4>1.4 (2019-04-12)</h4>
<ul>
<li>Fixed bug for sites without posts</li>
</ul>
<h4>1.3 (2019-01-16)</h4>
<ul>
<li>Fixed deprecation warning in PHP 7.2</li>
</ul>
<h4>1.2 (2018-07-09)</h4>
<ul>
<li>Added option for never automatically expanding list for current post / year</li>
<li>Fixed issue with wrong year being expanded</li>
</ul>
<h4>1.1 (2015-02-09)</h4>
<ul>
<li>Improved theme support</li>
</ul>
<h4>1.0 (2014-12-30)</h4>
<ul>
<li>Initial release</li>
</ul>
<p><a href="https://github.com/mpetroff/collapsed-archives-wp" rel="nofollow ugc">Plugin website</a></p>


Collapsed Archives

Adds a widget to display archive links using purely CSS-based collapsing.

Expanding Archives vs Collapsed Archives