Best Locking Climbing Carabiners of 2025

"I find these harnesses to be lightweight, strong, and versatile! Although I'm not a rock climber, I use them for roofing work. Unlike cumbersome five-point harnesses, Black Diamond harnesses allow me to kneel or sit comfortably while working, reducing muscle fatigue and taking weight off my back. My favorite carabiners are Black Diamond; they are low-dexterity friendly and well-designed."

"These climbing carabiners are super lightweight and perfect for clipping into harnesses. They don’t add extra weight to my gear, which is a big plus!"

"I've exclusively used these carabiners for tree climbing, and they are my go-to choice for all my bug-out bags. They are lightweight and feel high quality. The lock mechanism is satisfying and gives me confidence that it will stay secure."

"I use this for a quick disconnect on my coyote collarum canine trap. It makes removing the coyote stress-free for both of us. The threaded security coupler enhances the carabiner’s strength, ensuring it remains secure under stress. I can easily unscrew the collar with one hand while holding the catch pole with the other. I needed a high-quality product that can withstand dirt and weather, and I’m glad I chose this."

"I've been relying on Rhino Produxs Carabiner Clips for my outdoor activities, and they've quickly become essential to my gear collection. These clips are incredibly durable yet lightweight, with a 12kN weight capacity, making them perfect for everything from camping to securing my dog’s leash. The auto-locking feature is a great addition, ensuring my gear stays attached. I highly recommend them for anyone looking for reliable carabiners."

"I really appreciate the quality of this carabiner. It feels sturdy and heavy in my hand, unlike the cheap ones. I mainly use it for my keys, and the clip has been functioning perfectly. The screw-in lock hasn’t slipped at all. I also ended up with four carabiners instead of two, which was a nice surprise. Overall, I like them a lot and would buy them again if needed."

"I find these carabiners to be high quality and durable. They're very strong and easy to use. I often use them for canyoneering, and they always perform well."

"I purchased this carabiner with the intention of using it for my climbing harness on a trip. Although I didn't end up using it for that, I'm glad I kept it. It's heavy-duty and easy to lock/unlock. I'm currently using it to hold some gear in the garage and would definitely recommend this brand."

"I bought this Black Diamond carabiner for a unique proposal idea. We hike often, and I wanted something to help me feel secure on a terrifying trail. I proposed with this carabiner, which even has 'Black Diamond' stamped on it. He said yes, and I couldn't be happier! Five stars for how well it worked."

"I use these to secure my bags to the outside of my truck for work, and they do a phenomenal job. Very safe and secure."

"I've gone through countless cheap carabiners that break easily. I decided to invest in something locking and more sturdy. So far, these have held up for years without a scratch. If you're tired of losing keys and need something that lasts, this is a solid choice for keychains."

"I needed some additional carabiners for my safety ropes and harness. After searching on Amazon, I found FresKaro. They seem to be well made and sturdy. The auto-locking feature is a plus, and I would definitely recommend them!"

"I really like these carabiners! They're lightweight and quick to unlock or lock. I climb with them all the time. The only downside is that they aren't double-lock, so they might not be as secure. Great product for the price! I’ll definitely buy again."

"Initially, I was hesitant to order these due to concerns about their certification status. However, I found out that they are certified until 12/31/2023. They seem well-made with no visible defects. The gates open and close easily with one hand, which is a plus for me. I plan to use them in light rigging."

"These carabiners are exactly what I needed for my Snowmobile self-rescue kit. I appreciate the quality and certification, especially for the cost. Highly recommend!"

"As an outdoorsy guy, I really appreciate the heavy-duty construction of these carabiners. They can handle some serious weight, which is great for securing gear in the wilderness. While the auto-locking mechanism offers extra security, it can be a bit of a hassle if I'm trying to quickly attach or detach something."

"I regularly climb trees and use these carabiners all the time. They handle weight well, but I make it a point to check them regularly."

"I got these for various purposes beyond climbing. As a hiker and photographer, they come in handy for many reasons. They look great, and the opening and closing mechanics are smooth and satisfying to use."

"I was really impressed with the durability and weight capacity for such a great value. They lock tightly and look fantastic!"

"I've found these carabiners to be incredibly handy around the house. They have a solid locking mechanism and are very well made!"

"These carabiners are perfect for lowering my high-pressure hose down a trash chute. They handle the weight easily, and the locking mechanism provides extra security!"

"I love these carabiners. I always keep them handy for camping or kayaking because they work great for securing items or attaching to bullies. They’re heavyweight and can handle quite a bit—I've even used them to hold a hefty backpack to my hammock and to secure a kayak that flipped over while I was on the river. The locking system is reassuring; it doesn’t unlock unexpectedly. However, if you’re looking for something that releases quickly, you might want a different carabiner. Overall, I rate this carabiner 5/5 and would buy another if needed."

"This carabiner was exactly what I needed. It arrived on time, and the price was just right. I'm really pleased with my purchase."

"I've used mostly Petzl for biners for over 30 years, and I can confidently say that they are rock solid. This carabiner feels a bit larger and heavier, so I'm switching it to be my main carabiner in my setup. I will definitely order more!"

"I've been undecided about many things, but these are a go-to item for me. They're solid, dependable, and I trust them to perform when I'm hanging on a wall or bailing out of a stuck chairlift."

"I really love the color! While they’re not as large as some of the other carabiners I use, they still hold the weight well and are super light. The locking mechanism feels solid too."

"I haven't fallen out of the tree yet, so that must mean it's a five-star product for me!"

“I find this carabiner to be a great choice for my sailing needs. It's sturdy and feels nice and weighty, which is perfect for attaching several-pound backpacks. The locking mechanism works well, although I haven't tested it under extreme conditions.”

“Using this carabiner for my inverted row bar has been fantastic. It's super solid and definitely feels overkill for my needs, but safety is paramount. The positive locking and overall build quality impress me, even if the load limit is in kilonewtons.”

“As a professional in staging and live events, I rely on heavy-duty carabiners. This one is easy to use and incredibly strong. I think it's a great value and the size is just right for my work.”