Add a filter bar to your photo gallery

You want to offer your visitors an user friendly interface to navigate through your photo gallery? With the Tag Groups plugin, you can add multiple filters to your Piwigo photo library.


This plugin is not available to customers who have subscribed to an “Individual” offer on

Reminder: how tags work with Piwigo

If your Piwigo photo library contains a lot of media, you’ve probably decided to organize them with tags, or keywords.

Tags allow you to qualify your photos according to your own classification criteria: this can be colors, image formats, places, themes or any other useful information to easily find photos that have something in common.

A photo can have an infinite number of tags, and you can combine tags to refine your search.

The tag search is available from the “Related tags” menu item of your photo library (that you can activate with the “Menu Tags” plugin), or from a tag cloud that can be displayed on a page of your gallery.

tag cloud piwigo

Example of tag cloud

Thus, the tags are complementary to the albums.

Let’s take the example of the photo library of the Archeological Museum Archéa.

The photos of this photo library are organized in albums: Exhibitions, Collections… Each album is also organized in sub-albums: in the Exhibitions album, there is one sub-album per exhibition.

But if you’re looking for photos that match a finer criterion, that’s where the tags will prove themselves useful. You can find in one click all the photos tagged “Middle-Ages”, “Necropolis”, or “Merovingians”, whatever their album.

What if I want all the pictures of Merovingian necropolises?

Don’t worry: I just have to combine the two tags “Necropolis”, and “Merovingian”, as you can see on the example below.

search multi tags piwigo

This operation is very simple and convenient, but the tags are all mixed together. 

For an even better organisation, and an easier search, a new plugin is available on your Piwigo photo library.

Set up a filtering search bar with The Tag Groups plugin

This plugin allows you to use tags to set up a filtering search bar on your photo gallery.

How does it work?

You now have the ability to regroup the tags by family, with the new notion of “tag group”. 

The tags “blue”, “pink”, “green” can be associated with a “color” group. To do this, simply add a prefix in the tag name. Thus, by naming a tag “color:blue”, you will have the tag “blue” belonging to the “color” group.

You can see below a page that lists the tags of a Piwigo gallery, grouped by tag group.

word cloud tags piwigo

If we go on with the Archéa Museum example, we could imagine that the tags “High Middle Ages”, “Classical Middle Ages”, “Gallo-Roman Antiquity” and “Merovingian” would be classified in the “Period” group.

And the tags “ceramics”, “ornaments”, “furniture”, “tools”, “religious practices” etc. could be classified in the “Objects” group.

We could thus set up in the gallery a search engine with filters by period, and by type of object, with drop-down lists as in the example below.

tag groups plugin piwigo
Photo library on which the Tag Groups plugin has been installed

On the above example, (click on the image to enlarge it if necessary), you can see that we first filtered the pictures to show only the “Tulip” type flowers.

You can then refine the selection by color with the “Color” filter. It lists all tags of type “Color”, but only those that are present on photos that also have the tag “Tulip” are clickable.

filter bar multi criteria piwigo

If I select the “Purple” color, the selection only shows me files with the “Tulip” tag AND the “Purple” tag.

filter bar multi criteria piwigo

If you wish to test by yourself, you can view a demo by clicking on this link.

We hope you like this new feature!  Would you like to implement it on your Piwigo gallery?

If so, you have two options :

  • If you host your Piwigo yourself, download the Tag Groups plugin
  • If you are a customer of a hosting offer with, please contact support. Indeed, you can’t (yet) activate the Tag Groups plugin yourself. Warning! This plugin is only available for customers who subscribed to an Enterprise offer.

Where are photos stored with Piwigo ?

Looking for an online solution to manage your photo library, someone recommended Piwigo, but you don’t really understand how it works, and where your photos will be hosted? Don’t worry, you will find everything you need to know in this blog post! or ?

Firstly, you will need to understand the difference between the two options available, this difference could be confusing for some :

  • On the one hand you can download the open source Piwigo software on;
  • Or on the other you can create an account on

1 – You host Piwigo by yourself

If you choose the first option, you will download files for free from, which you will have to install on a server. You will have to subscribe to an offer from a web hosting service and deploy your Piwigo yourself before you can upload your photos and organize them.

Manual installation of Piwigo

In this case, your photos will be stored on the server that hosts the application. Thus, if you install Piwigo on a shared hosting, at Gandi for example, your photos will be saved on the storage system associated with this hosting.

To find out more, check with your host to find out exactly where this storage system is located because it can be “remote”.

2 – You choose

If you choose the second option, and sign up with, your Piwigo library will be created directly on our platform.

Sign up form on
Sign up form on

In this case, your library will be hosted on dedicated servers (which means that they are not shared with other sites). Piwigo rents these servers from OVH, a french host. Our servers are located in France at the Roubaix, Strasbourg and Gravelines data centers. Your data is stored on the hard drives of these servers, i.e. exactly where the Piwigo app runs.

To answer the question many users might ask, especially public administrations, we do not use the services of Amazon (AWS), Google (Cloud Platform) or Microsoft (Azure). We do not use them for two main reasons:

  • Firstly, we do not want to entrust them with our customers’ data;
  • Secondly, these services are very expensive, which would in all logic increase the price of our offers.

What guarantees for you data safety ?

If you choose to host your Piwigo yourself, it is up to you to make sure that your hosting provider has done what it takes to ensure that your data is safe. You are also solely responsible for backing up your data and files.

But if you choose one of our offers on, we take care of everything: let’s see how we ensure that your data will not be lost.’s technical infrastructure is based on coupled servers. Each “main” server is duplicated by a “secondary” server that serves as backup system.

A account is hosted on a main server (photos and database). Every night, each main server is synchronized to its secondary server. And every night, we make a copy of each database, and we keep at least the last 30 days. This allows us to restore your photo library in case of handling errors. To make it simple, we can restore an album that you deleted by mistake.

backup server
Every night, each main server is synchronized to its secondary server.

In addition to night-time synchronization, we have set up a backup system with finer granularity. Every 15 minutes, a script checks if there have been any changes on your Piwigo: add/edit/delete photo/album/tag/user/comment.

If any change is detected, your account is automatically synchronized on the secondary server. All these mechanics allow us, in the worst case scenario, to lose only the last 15 minutes of activity.

What if I want to switch hosting ?

One of’s promises is to fight against “customer lockdown”.

We definitely don’t want to put a brake on you the day you want to switch to another hosting, or even to your own infrastructure. If you host your data on, you can download your database and files at any time. You can move your Piwigo on to your own server if you wish, keeping your photo library exactly the same.

You will not lose the many hours spent organizing your content, visit history or user comments. All these operations are documented, just follow the guide!

But you can also decide to move your Piwigo from your server to We regularly carry out this operation for our customers. We take care of everything: data transfer, database import, Piwigo updates and extensions. This transaction is not billed as we consider it to be part of the services associated with the offer.

To sum things up :

Piwigo offers two different ways to use its photo library management software and therefore, two different ways to store your files:

  • On the server of your choice if you choose the free download on
  • On our dedicated servers if you choose one of our offers.

Both solutions are used by thousands of individuals and professionals, and might fit your needs. It is up to you to decide which one is best for you! technical infrastructure

Today we publish a new page on presentation website: Infrastructure. You will learn where and how your photos are hosted. You will also learn which measures we have implemented to make a safe place for your photos. technical infrastructure, where and how are your photos stored? technical infrastructure, where and how are your photos stored?

Special thanks to Tadjio for correcting the page.

Feel free to ask questions if you want to learn more about our infrastructure.

Robots and visit history

Piwigo 2.6 has introduced a geolocation feature for your visitors. Now you know where your visitors come from and you may have discovered that you often receive visits from Redmond (Washington, USA)  and Mountain View (California, USA). Don’t panic, this is not an attack: they are just robots of Bing (Microsoft search engine) and Google.

Visit history, Bing is visiting your Piwigo (Redmond, USA)

Visit history, Bing is visiting your Piwigo (Redmond, USA)

Their visits are useful because they make you “findable” in search engines. But maybe you don’t want to see all this noise in your visit history. Activate the new plugin No Stats for Robots if you want to see only real human visitors. Of course, this plugin won’t stop search engines, it just avoid registering their visits.

Import from Flickr to Piwigo

Plugin Flickr2Piwigo lets you import your albums (sets) and photos from Flickr, directly into your Piwigo gallery. Here is the procedure to follow.

1) activate plugin Flickr2Piwigo

2) open page [Administration > menu Plugins > sub-menu Flickr2Piwigo > tab Configuration]. We’re going to follow the steps described on this page.

3) click on the link and login to your Flickr account

4) from the Flickr2Piwigo configuration page, click on the “API keys page” link, click on the “Get another key” button, and click on the “Apply for a non-commercial key” button

5) describe your application (name, description, checkboxes) and submit

Create an app in Flickr

Create an app in Flickr

6) get your Key and Secret and copy them into Flickr2Piwigo configuration page

Get your app keys on Flickr

Get your app keys on Flickr…

... and copy Key/Secret on Piwigo

… and copy Key/Secret on Piwigo

7) on the Flickr page, click on the “Edit auth flow for this app” link and copy your Callback URL, provided on Flickr2Piwigo configuration page.

8) back to Piwigo, go to the “Import” tab of Flickr2Piwigo and click on the “Login” button

Flickr2Piwigo login

Flickr2Piwigo login

9) Import your photos. You can select photos with a specific batch manager or you can import your whole Flickr structure.

Flickr2Piwigo select photos and start import

Flickr2Piwigo select photos and start import

New plugin Birthdate

Plugin Birthdate gives people age on each photo. Since Piwigo knows the date of the photo and if you tag the photo with people name, Piwigo only needs to know the people birthdate to display their age on photo. Plugin Birthdate let you define the birthdate of any tag.

Plugin Birthdate: first step is to add birthdates

Plugin Birthdate: add a birthdate

Plugin Birthdate: on administration side you can see the list of defined birthdates

Plugin Birthdate: on administration side you can see the list of defined birthdates

Plugin Birthdate: on the page of the photo, next to each tag Piwigo displays the age

Plugin Birthdate: on the page of the photo, next to each tag Piwigo displays the age

Depending on the age, Piwigo will display seconds or minutes or hours… or years. If you have a family photo gallery, you will certainly appreciate to immediately know the age of kids on each photo!

Protect your photos against copy

One of the most frequently asked questions on support is “how do I forbid copy on my photos ?”. Here is how Piwigo can help you.

Before listing tips and tricks it is important to understand that no protection against copy is 100% reliable, be it on Piwigo or anywhere else: as soon as a photo is visible on the web, it can be copied, one way or another. It is just “more or less” easy, depending on computer skills of the thief. If anyone says otherwise there is a good chance he is either naive or incompetent or simply a liar.

Which technical protections are available in Piwigo?

  1. plugin rightClick prevents from  right click on photos. Please note that it has no impact on administrator users.
  2. on screen [Administration > menu Users > sub-menu Manage], say “no” on option “high definition enabled” for all users
  3. on screen [Administration > menu Configuration > sub-menu Options > tab Display > section Photo Page], deactivate icon “Download this file”
  4. on screen [Administration > menu Configuration > sub-menu Options > tab Watermark], add your own watermark.

Piwigo 2.4 introduced the "watermark" feature. All your photos are automatically watermarked.

Piwigo 2.4 introduced the “watermark” feature. All your photos are automatically watermarked.

These are only “technical” protections, with a limited efficiency. In addition we recommend to highlight that “All rights reserved. Do not reproduce in whole or in part without prior written permission.”, for example. You can choose to display this message in several locations. For example:

  • in page banner
  • in a PWG Stuffs block, anywhere on the page
  • in a personalized menu with plugin Advanced Menu Manager
  • in page footer with plugin Perso Footer

Create a custom footer on all your pages with Piwigo plugin Perso Footer

Create a custom footer on all your pages with Piwigo plugin Perso Footer


Transfer your Piwigo Gallery to

This question is frequently asked on support: is it possible to transfer an existing Piwigo photo gallery to The answer is “yes”. We have done it several times from various hosting providers.

Our goal is not to host all Piwigo galleries on, because we believe that the Web is and must remain “decentralized” but for some users, is cheaper than their current hosting provider or simply offers a better quality of service while maintaining the same high level of freedom.

Before we proceed, you have to be aware that Piwigo on is slightly different than Piwigo downloaded on A few features are missing:

  1. you can’t install any theme/plugin. There is a list of available extensions. We have tested and validated them all. If you want an extension that is not currently available, ask us and we will see what we can do.
  2. no FTP access. You can’t add photos with the synchronization method. If you already use the web form or pLoader to upload photos, you won’t feel the difference. If you current photos have been added with synchronization, we will manage the conversion into “virtual” albums.

Here is what we propose: test Piwigo on with these differences in mind and if fits your need then pay your 1-year subscription and we will manage the move to, with no additional fee. You will keep all your photos and related info such as user comments, descriptions and so on.

Custom Page Footer

Until now, to add a personal message in the footer, we recommended to use the plugin LMT (license manager on your photos) because it features such an option. This plugin is very powerful and complete, so it might seem excessive for such a simple need. Now and for this specific purpose, we recommend instead plugin Perso Footer, whose sole mission is to add a message in the footer.

Custom Footer on your Piwigo photo gallery

Custom Footer on your Piwigo photo gallery

Perso Footer is compatible with all themes. The most frequent message we encounter looks like “Photos are copyrighted, ask before any use” but this is free text, you decide what you write.

Simple task = simple use: once plugin Perso Footer is activated on screen [Administration > Plugins > Manage], submit your text on screen [Administration > Plugins > Perso Footer] and you’re done.