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How to Open a Door Lock Without a Key from the Outside

This article is a collaborative effort, crafted and edited by a team of dedicated professionals.

Contributors: Muhammad Baballe Ahmad, Mehmet Cavas, Sudhir Chitnis, and Zhen-ya Liu.

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How to Open a Door Lock Without a Key from the Outside- If you’re locked out of your house and don’t have a spare key, you may be able to pick the lock yourself.


Opening a door lock without a key can be daunting, but it doesn’t have to be. It’s possible to open a door lock without a key from the outside by using various methods and tools. This guide will explain the different techniques you need to know about so that you can make sure your security is not compromised in any way.
The methods and techniques enlisted in this guide range from using professional tools such as locksmith picks, bump keys and lockpicking tools, to using improvised items such as credit cards, screwdrivers, paper clips and more. These techniques should only be used if you are in an emergency situation or if gaining access to the premises is essential for safety or legal concerns.
It goes without saying that proper precaution should be taken when attempting to open a door without a key; these processes could damage the lock or even potentially harm yourself if not done properly. In addition, depending on where you are trying this method of unlocking a door may alsoc onstitute illegal activity. Make sure you are taking proper steps before attempting these procedures so that you do not find yourself in any kind of legal trouble.

Identify the Lock Type

Before attempting to open a door lock without a key, it is important to identify the type of lock used. There are several types of door locks that can be found on the exterior of a home, such as deadbolt locks, knob locks, lever locks , electronic locks, and more. Each type of lock has its own unique unlocking method. This section will discuss how to correctly identify the lock type in order to successfully open the door without a key.

Pin and Tumbler Locks

Pin and tumbler locks are one of the most common types of locks used for residential and commercial doors. These locks use a precisely designed set of pins that must be matched correctly in order for the lock to open. When a key is inserted into the lock, it pushes each of the pins upward to line up with the shear line inside. When all pins are aligned exactly, it allows the plug or cylinder to turn and open the lock. Pin and tumbler locks can be further subdivided based on how they enable that to happen – standard pin and tumbler, single-sided pin tumblers and double-sided pin tumblers.

Standard Pin & Tumbler
This type of lock is also known as traditional pin tumblers and uses two different sized springs – one behind each pin. This design forces all of the pins up along with their associated springs until they align with each other at a certain height on their own, no matter what sequence was used when locking them in place.

Single-Sided Pin Tumblers
The single-sided design has only one spring assigned per level instead of two, which makes them easier to pick than standard models. Most commercially available models use this model because it is more cost effective than other designs.

Double-Sided Pin Tumblers
This style utilizes two different types of pins -driver pins which have small spines attached along its length, resulting in enhanced security by making small spaces too tight or crowded for a thin wire pick tool or rake tool to pass through without becoming lodged inside them; while lower security master wafers serve as false drivers that can get caught up in an attempt at picking them with foolhardy methods like raking or using an unbent paperclip as a makeshift tension wrench.. By combining these two components into a single cylinder, double-sided models offer stronger protection than either type used independently; however they cannot be picked any easier than solitary driver pins due to their complex inner mechanism being subjected highly advanced techniques like impressioning or magnetic manipulation needed before they can open up against external force from any tools associated with attack methods used on singular wafer systems

Wafer Locks

Wafer locks are less common than pin tumbler or tubular locks, and they are found in RV doors or aluminium storefront doors. These locks have oblong-shaped wafers that line up when the door is closed, keeping it lock securely. If a wafer has been jumped too high, it could create an issue as the key would not be able to push down all of the springs. If you have one of these more uncommon types of lock on your door; there are several methods for unlocking without a key from the outside:

-Jaw spreader: This device is designed to have two prongs separated by a spacer inserted between the frame and latch of a wafer lock. Once inside, the spacer will move up, stretching open the wafers so that you can lift them up out of their slots to disengage them.
-Impact wrench or hammer: Another way to open these types of locks is by using either an impact wrench or hammer to break through the material holding all of the separate pieces together.
-Lock Pick Set: Depending on how experienced you are with lockpicking this can be done with standard tools such as small tension tools and rake picks in order to manipulate each individual piece until it moves while still maintaining enough pressure on all other pieces at once so they don’t slip back into their default positions before you are able to pull open the mechanism from outside; this method is usually used by locksmiths when encountering more stubborn doors only if other methods fail.

Lever Locks

The most common type of lock you’ll find in residential homes and businesses is the lever lock. Lever locks consist of a single latch mechanism, or lever, which must be moved upwards or downwards with a lifting force to open or close the lock. Lever locks are best used on interior doors that don’t require a high level of security, such as closets and bathrooms.

There are two main types of lever locks: the mono-stile and the multi-stile. The mono-stile is the simpler design, consisting of just one latch for the door handle that moves upwards to unlock the door when turned clockwise. The multi-stile is more complex and has two levers – one for pushing inwards and another for turning clockwise to unlock – as well as a double-sided keyhole underneath the handle.

Sometimes, lever locks will have additional safety mechanisms such as an anti-pick shield or raised pins that limit how far you can push inwards with your finger before it pops back out. These are designed to prevent opening via crowbar or other leverage tools like screwdrivers.

To open a lever lock without a key from outside the door, you’ll need something thin and strong enough to slide in between the slit in place between lever both levers simultaneously (multi-styles models) and push them both up at once until they click into place. This technique may require some trial and error if you’ve never done it before but with some practice, it should become easier over time!

Open the Lock Without a Key

Opening a door lock without a key from the outside can sometimes be a difficult and frustrating task. Luckily, there are several methods that you can use to open the door lock without a key. From DIY methods to professional tools, there are a variety of options you can use to safely get yourself access to the inside of the door. Let’s take a closer look at some of the ways to open a door lock without a key from the outside.

Pick the Lock

Pick the lock if you don’t have a key available. This is the quickest and most effective way to open a door lock from the outside without any special tools. While it is possible to pick a lock with hairpins or other items, it is not recommended for inexperienced individuals. It is best to purchase an inexpensive set of professional picks or purchase a pick gun from a locksmith. With practice, you should be able to open simple door locks once you understand the various techniques and have familiarity with your picks.

For more complex locks, like those found on automobile doors and deadbolt locks, this method may not work as well. In these cases, employing an experienced locksmith may be the safest solution.

Use a Bump Key

Have you ever been locked out of your house and don’t have a key to get back in? In this case, a bump key can come in handy. Bump keys are specially designed keys that allow you to open a door lock without the use of a conventional key. There are several types of bump keys available on the market, such as ones with grooves cut into them or ones with shape-shifting tips. To use a bump key, you insert it into the lock and “bump” it with your palm or another flat object. This causes pins inside the lock to temporarily move out of position allowing you to briefly turn the cylinder and open the door. It is important to remember that using this type of method can be risky because it can leave your lock susceptible to unauthorized access, and should only be used as a last resort!

Use a Slim Jim

A Slim Jim is an automotive lockout tool that can be used to open some types of locks without a key. It is also known as a long reach tool or jiggler key. To use a Slim Jim, slide the narrow end between the window and the weather stripping until it reaches the door latch. Once in place, move it up and down to lift the lock out of its mechanism.

When using a Slim Jim, make sure you find one designed for cars rather than houses – house versions won’t fit in automobile doors properly. Be gentle; you don’t want to damage your vehicle’s door or lock mechanism. Only use plastic tools and be mindful not to chip any paint off your vehicle as you insert the tool into the tight space between window and weather stripping. If you’re still having difficulty opening your door with a Slim Jim, try using an electric pick gun, an unlocking device that can be used to swiftly unlock doors without causing any damage to them.

Use a Credit Card

Using a credit card is one of the most well-known methods for unlocking a door without a key. To open the door, start by inserting your card – like a credit card or driver’s license – along the side of the doorknob closest to the hinges. Gently apply pressure with your card and try to push it inward towards the doorknob. If you feel resistance, try several other cards until you find one that will fit into the gap between the door and door frame.

Once your card has been inserted, use it to apply pressure directly on both sides of the latch and push inwards. You may need to experiment with different positions in order to unlock the door without damaging either your cards or your lock. If you feel yourself losing traction, take a few seconds to re-position and then press inward once more. You should be able to pop open or unlock most standard locks using this method as long as there is an adequate gap between the door and locking plate on either side.


While there are many other methods for opening a locked door from the outside, such as lock picking and bump keys, these methods can be difficult for those who are not experienced with them. It is also important to consider the risk that each of these methods poses to the security of your home.

To sum up, if you ever find yourself locked out of your house, it is best to first use a spare key or call a locksmith. If none of these options are available, there are various non-destructive ways you can open a door lock from outside, such as using a credit card, paper clip or shimtool. However, before attempting any of these methods it’s important to consider the security risk they may pose.

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