Bonus codes 2025

Online casino bonus codes offer players even better - and often exclusive - deals. The bonus code acts like a key and reveals amazing deposit bonuses and free spins behind the locks. Check out this list to find all the best bonus codes!

List updated: 23.11.2025

What are online casino bonus codes?

Online casino bonus codes are simply predefined words or number codes that allow you to redeem casino bonuses or free spins. Although not all casinos use bonus codes anymore, they still come up regularly.

An online casino bonus code is often found in the terms and conditions of the offer, so we always recommend checking them. However, if you can't be bothered to wade through a sea of text - no worries. That's what we're here for. We continuously review various bonus offers and highlight on this page those bonuses that require a code to redeem.

But why do casinos still use bonus codes? There are several reasons for this. Firstly, some sites offer players ongoing reload bonuses, spins, and other offers - and thus it's easier to ensure that the player receives exactly the offer they want. For example, if you've redeemed the first part of a welcome package and with your second deposit you want to grab the weekly reload bonus instead of the second part of the new player offer, the bonus code will guide you in the right direction.

Secondly, online casinos give partners (like us) exclusive offers. These offers may be slightly larger deposit bonuses than usual, no deposit free spins, or better bonus terms. We'll tell you more about this a bit further down.

Often an exclusive offer behind it

We certainly do not want to hide the fact that we work in collaboration with online casinos. We carefully select the online casinos that we believe are good enough and reliable - and of course, offer quality bonuses to new customers. In some cases, we can even negotiate a special offer for our readers that can be redeemed purely through az-ar.com.

In this case, online casinos often give us a bonus code that activates the offer. Players must enter the predefined code during the deposit process, allowing the "secret" and better bonus to be redeemed.

Let's take an example. Casino A usually gives its customers a 100% bonus up to €100 and 20 free spins. If you redeem the offer normally, you receive exactly the bonus mentioned on the site. However, we have received an exclusive bonus: a 150% bonus up to €100 and 50 free spins with the code EXAMPLE. In this case, it is definitely worth entering the bonus code, as it unlocks a special offer. Easy, right?

This is by no means a new concept: for example, social media celebrities give their followers special offers and bonus codes for cheaper sports pants. The process works exactly the same way, but only in the world of casino bonuses.

From our experience, we can say that with bonus codes, it is possible to get either free spins without a deposit or either larger exclusive bonuses either percentage-wise or in terms of amount.

Looking for a bonus code - what do I do?

When searching for valid bonus codes for an online casino, you have a few different options. The easiest way is to check what bonus codes we have added to the list found on this page. We try to update the list as often as possible - whenever we come across either the casino's own bonus code or an exclusive offer that you can redeem only through this page.

Another option is to familiarize yourself with the available online casinos and search for information about the bonus terms. This option is the most labor-intensive, as it involves a lot of "unnecessary work." We recommend leaving this task to the professionals!

Players should never underestimate how important they are to casinos. The competition is so fierce that it is definitely a "buyer's" market. So if you have been playing at the same online casino for a long time, you can ask in the live chat for a bonus or bonus code created just for you. By asking, you never lose anything, and casinos often give bonuses to their loyal customers.

Instructions: use the online casino bonus code like this

Next, let's go through how to properly redeem casino bonus codes. The process is quite simple, but since repetition is the mother of learning, let's go through the procedure once more.

1. Select an online casino that uses bonus codes.
2. Create an account at the casino either during the account form or deposit process.
3. When you are ready to make a deposit, enter the code in the field next to the amount that is reserved specifically for the bonus code.
4. Once the code is entered and the deposit is made, the desired bonus will appear in your account.
5. Note! Sometimes, for example with no deposit free spins, you may need to provide the bonus code in the live chat to activate the offer in your account.

Bonus codes without a deposit

The absolute best benefit that online casino bonus codes bring is bonuses without a deposit. This offer is exactly what it sounds like: you receive either bonus money or free spins without depositing a single cent into the online casino.

The most common offers are either €5-20 in free play money bonuses or 10-50 free spins without a deposit. We could spend an eternity comparing these two bonuses, but to be honest, they are both very good. Every single time, when an online casino offers completely free bonuses, they should be taken advantage of - as you are playing with 100% of the casino's funds and not your own. With these offers, you can easily get to know the gaming casino and later decide whether you want to deposit your own money there.

In these offers, the bonus code works a bit differently. You do not enter it during the deposit process but rather when you are opening an account - since this bonus does not require a deposit! So when you are grabbing no deposit free spins or bonus money, just fill out the account form and provide the bonus code at the same time. If for some reason you cannot find a place to enter the code, open the live chat and inform them, and the offer will be activated.

Bonuses without a code

Online casinos no longer really need bonus codes, as many other options have been invented instead. If previously you selected your desired bonus from different options using the bonus code, the process is now usually much easier. For example, 7Signs Casino, which offers an impressive seven bonuses, already provides the option to choose your desired bonus from a list during registration. When you click on different icons, you get more detailed information about what each offer includes.

Exclusive campaigns may not necessarily require a bonus code either, as partners like us receive a special page where players are directed and from which the special offer can be found. To be honest, from a player's perspective, the other option is even better, as you do not have to remember a code separately or go back to check it.

In reload bonuses and other offers, there is often a dedicated "participate" button on the campaign page, and by clicking this, you can directly redeem the offer. Online casinos put a lot of effort into their offers, so they do not want to make it unnecessarily difficult to grab them.

And last but not least are the bonuses linked to the player's account. Many casinos have a separate page for bonuses under the "my account" section, where the offers that you can redeem at that moment are listed directly. Here you can find bonuses for new players as well as offers aimed at existing customers.

Bonus Codes: Terms and Conditions

Like all bonuses, bonuses redeemed with separate codes are subject to various rules and conditions. Almost all casino bonuses include wagering requirements that must be met before a withdrawal can be requested. Good wagering requirements are 10-25x, average are 30-50x, and really poor are over 50 times. This guideline is good to follow when considering whether the offer is worth redeeming.

Additionally, there is often a defined maximum bet to be used during wagering, which is often €5. When the amounts start to go below this, the wagering process becomes really challenging. We give points to those casinos that offer even a €10 maximum bet.

Win caps are almost a curse word for us, and we never want to see them in connection with traditional deposit bonuses. Some online casinos restrict the amount of potential winnings very harshly - and these casinos should definitely be avoided. The only exception is no deposit bonuses, as the player has not invested their own money in them.