Upload Unzipper
Extracts uploaded zip archives and associates all files with the current post.
Consider an alternative
Upload Unzipper shows warning signs in 2026 — compare the alternatives below before installing. It runs on 20+ sites and was last updated 19 years ago, and scores 24/100 on our health check.
- Small user base (20+ active installs)
- Very few reviews so far
- No update in 18 years
- Only tested up to WordPress 2.2 (latest is 7.1)
How does it stack up?
Side-by-side on installs, updates, ratings & support
Daily downloads
Download spikes usually follow a new release — each site that auto-updates counts as a download.
Rankings
Where Upload Unzipper stands todayWordPress.org search rankings
Live position in the plugin search, top 100| Keyword | Position |
|---|---|
| batch | >100 |
| unzip | >100 |
| upload | >100 |
| zip | >100 |
Version adoption
Share of active sites per release.
About Upload Unzipper
From the official readme · v1.0Description
Upload Unziper let’s you upload zip-archives and have them extracted, each file properly attached to the current post.
It’s built upon and meant to replace James Revillini’s now-broken just-unzip, and expands on the original plugin in the following ways:
- runs all files through WP’s sanitize filter to ensure valid filenames
- does not attach duplicates
- does not replace files with the same name
- correctly deals with nestled directories
- uses the latest WP core functionality and the latest PclZip version
- and – perhaps most importantly – it works! 😉
In short – it’s a nice way to do batch uploading. I highly recommend you combine it with an inline image viewer and a plugin to better organize your uploads.
TODO (help needed)
This plugin could do with a few options. As it is, it’ll always unzip archives and then delete them – which might not always be desired.
There are options for this already used in the plugin so it shouldn’t be a problem, but I just loath front-end development. Placing a few tickboxes in the ‘upload’-iframe would do the trick. If you’ve got a few minutes to throw something together, please email me or post a comment to this plugin.
Options I’d like exposed:
- delete zip when done (default: true)
- unzip and attach (default: true)
- attach zip to post (default: false)Copyright (C) 2007 Ulf Benjaminsson (ulf at ulfben dot com).
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
Installation
- Extract the
wp-upload-unzipperfolder and transfer it to the/wp-content/plugins/directory - Activate the plugin through the ‘Plugins’ menu in WordPress
- Upload some zips. 🙂
For developers
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Best Upload Unzipper alternatives
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FAQ
Upload Unzipper: quick answers
Straight answers, pulled from live WordPress.org data.
Live data from WordPress.org · checked Sep 27, 2026
Is Upload Unzipper free?
Yes. Upload Unzipper is free to download and use from the official WordPress.org plugin directory.
Is Upload Unzipper safe to use in 2026?
Upload Unzipper shows warning signs in 2026 — compare the alternatives below before installing. It runs on 20+ sites and was last updated 19 years ago, and scores 24/100 on our health check.
How many websites use Upload Unzipper?
Upload Unzipper is active on 20+ WordPress websites and has been downloaded 5,570 times since it launched in September 2007. It was downloaded 86 times in the last 30 days.
Does Upload Unzipper work with WordPress 7.1?
Upload Unzipper is officially tested up to WordPress 2.2.3, while the latest release is 7.1.2. It may still work, but try it on a staging site first.
When was Upload Unzipper last updated?
The latest version, 1.0, was released on December 4, 2007 (19 years ago).
Who makes Upload Unzipper?
Upload Unzipper is developed and maintained by ulfben.
What are the best alternatives to Upload Unzipper?
The most popular alternatives to Upload Unzipper are PW WooCommerce Bulk Edit (20K+ installs), Bulk menu creator (1K+ installs) and Seraphinite Post .DOCX Sour… (800+ installs).
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