The 9 Best Knife Sharpeners to Keep Your Blades Razor Sharp

The Chef's Choice ProntoPro Knife Sharpener is our top choice.

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Knife Sharpeners
Photo: Amazon

Our pick for Best Sharpening Stone, the Sharp Pebble Premium Knife Sharpening Stone, is marked down at Amazon.

A knife sharpener is an easy and helpful tool to keep your knives sharp and in good condition. Though it may seem like a fussy step only necessary for professional chefs, sharp knives make such a difference in everything from dicing vegetables to more technical cuts, like filleting fish, and they help reduce accidents, which might happen when you're forced to hack away at things that should only require an easy slice.

Knife sharpeners come in a variety of prices and sizes, and which one you choose will largely depend on your budget, kitchen storage, and personal preferences. To find the best knife sharpener, we researched various options, considering their durability, grip, ease of use, and overall value. Keeping these criteria in mind, we found that the Chef's Choice ProntoPro Knife Sharpener is our top pick. Read on to discover the best knife sharpeners on the market.

Our Top Picks

Best Manual Sharpener: Chef's Choice ProntoPro Knife Sharpener

Chef's Choice Manual Knife Sharpener

We love the Chef's Choice ProntoPro Knife sharpener for its versatility and overall value. The three-stage sharpener has 100% diamond abrasives, which gradually hone blades before polishing edges to smooth sharpness. It works on both straight-edged and serrated blades and features precise bevel angle control that applies 15-degree edges for Asian-style knives and 20-degree edges for European- and American-style knives.

The professional-grade sharpener has a rubber grip on the handle, which makes it easy to hold while in use. It is easy to use, and it works quickly and effectively, making it well worth the investment. Its small size also allows you to store it easily in your kitchen, whether it be on the counter or inside a drawer or pantry.

  • Style: Manual
  • Abrasive Material: Diamond
  • Dimensions: 9.3 x 2 x 2 inches

Best Electric Sharpener: Work Sharp Knife Sharpener

Work Sharp Knife Sharpener

When I opened up the Work Sharp Knife Sharpener, I was slightly intimidated by how high-tech it looked. Thankfully, it's a breeze to use. You can run the machine at three settings controlled by a button: Shape, Sharpen, and Refine. The Shape setting nudges your knife's edge back to its proper angle, while Sharpen creates razor-thin edges, and the Refine smooths out any burrs. The brand also sells a ceramic honing rod, so you can keep your knives at their best in between sharpening sessions. Bonus: It works with all types of blades, including kitchen scissors, pocket knives, and even serrated knives.

I had some pretty dull knives, so I started with the Shape setting. A narrow belt started whirring quickly after I pressed the button, and I physically felt the spinning belt sand the blade down when I inserted my knife's edge into one of the slots. It was louder than I expected, but it made me feel like the device was actually doing something. After the cycle was done (the Work Sharp automatically turns off at the end of each cycle), I moved on to Sharpen, then Refine. I had to go through two rounds for one of my especially dull knives, but the entire process took less than five minutes total. Pretty speedy! And my knives were sharper than they'd been in years.

At $150, the Work Sharp isn't cheap. However, if you want an option that can handle a wide variety of blades and requires little to no effort on your part, it could be a good investment.

  • Style: Electric
  • Abrasive Material: Ceramic (120 grit)
  • Dimensions: 7.3 x 4.5 x 5.2 inches

Best Sharpening Stone: Sharp Pebble Premium Knife Sharpening Stone

Sharp Pebble Whetstone Knife Sharpener

The Sharp Pebble is a whetstone, which is a texture block for DIY sharpening. Most professional chefs say whetstones are the only way they sharpen their knives. Unlike electric and manual sharpeners, which have fixed blades to sharpen edges to a precise angle, whetstones allow a higher degree of freedom so you can hone blades to any angle with greater control.

One downside of using a whetstone, though, is that you have to practice a bit to know what you're doing. When I asked Rivera why he thought more home cooks didn't use whetstones, he summed it up in one word: "patience." The stone has to be soaked for roughly 10 minutes before use and periodically re-wet during the sharpening process. It also takes anywhere from five to 10 minutes per side, and even longer when you're first getting the hang of it.

If you do choose to try out a whetstone, however, you'll be rewarded with a super-sharp blade and the pride of knowing you executed it just like a chef. Whetstones are also more versatile than most other sharpeners. In addition to knives, you can sharpen scissors, gardening tools, and bigger blades like axes (you know, in case you have an axe on hand that needs sharpening).

The Sharp Pebble is one of Amazon's best-rated whetstones, with more than 1,300 five-star reviews. It's made from highly durable silicon carbide and designed with a 400-grit side for extensive grinding and a 1,000-grit side to smooth and polish the edge. It also comes with a slip-resistant rubber base to hold the stone while sharpening, as well as flattening stone to reshape and level the sharpener.

I tried out the Sharp Pebble, and while it certainly wasn't as easy an experience as some of the other sharpeners I tested, it was actually the most fun to use. I watched a few DIY knife sharpening videos online while I soaked my stone, then ran the blade of my knife up and down along the coarser stone for a few minutes, moving it around to concentrate on different areas. I then switched to the smoother stone to polish it. Overall, my knife wasn't as dramatically transformed as the others that I sharpened on the electric and even manual options. However, with practice, I think I could learn to sharpen my blades with the whetstone.

  • Style: Manual
  • Abrasive Material: Silicon carbide (400 and 1,000 grit)
  • Dimensions: 7.3 x 2.3 x 1 inches

Best Entry-Level Electric Sharpener: Presto EverSharp Electric Knife Sharpener

Presto 8800 Knife Sharpener

Even if you're a knife-sharpening newbie, the Presto Ever Sharp Electric Knife Sharpener will get your blades in top shape. It has a two-stage system that quickly sharpens any non-serrated edge and is designed with a guide to position your knife at the perfect sharpening angle without guesswork. First, the wheels grind an angled edge into the blade, then the edge is honed and polished smooth. The Presto also uses sapphirite sharpening wheels, which is the same super-hard material used in professional shops.

I actually got a Presto sharpener to test out myself and was pleased with the results. Using it is simple: Plug in the machine, insert your knife into one of the grooves on the first side, slide it through 10 times for a few seconds each, then repeat on the other side to sharpen both sides of the blade. After that, repeat on the other side to smooth the blade.

The machine can get a bit loud, but my knife's edge was noticeably sharper by the time I finished the process, which only took around 30 seconds. In addition to my chef's knife, I sharpened a few of my paring knives and also had excellent results. The Presto sharpener also has a pretty sweet price point for such a high-quality experience.

  • Style: Electric
  • Abrasive Material: Sapphirite
  • Dimensions: 9.9 x 7.2 x 4.8 inches

Best Entry-Level Manual Sharpener: PriorityChef Knife Sharpener

PriorityChef Knife Sharpener

At under $20, the PriorityChef Knife Sharpener is practically a steal for anyone looking to try sharpening knives, themselves. Its straightforward two-stage sharpening system first grinds straight-edged blades into the right shape with a diamond-coated coarse wheel, then polishes them to a razor edge with a ceramic fine wheel. Pass knives through each opening about 10 times, and your edges will have new life in mere minutes. It even works on serrated knives! Just make sure to only run them through the ceramic opening.

  • Style: Manual
  • Abrasive Material: Diamond
  • Dimensions: 7.5 x 2.5 x 2.5 inches

Best Budget-Friendly Sharpener: KitchenIQ Edge Grip Knife Sharpener

Kitchen IQ Knife Sharpener

It may be low in price and small in stature, but the KitchenIQ Edge Grip Knife Sharpener can still deliver a pretty sharp edge to your dullest blades. The device comes with two sharpening options: The coarse setting has carbide blades, which quickly set a knife's edge, and the fine setting consists of ceramic rods to hone just-sharpened blades or provide quick touch-ups to keep your knife at its best between sharpenings. It also features a non-slip base for stability and easy control, while its tiny size (it fits in your palm!) makes it ideal for small kitchens.

  • Style: Electric
  • Abrasive Material: Carbide and ceramic
  • Dimensions: 7.5 x 2.5 x 2.5 inches

Best for Quick Fixes: Accusharp Knife Sharpener

Accusharp Knife Sharpener

If you're looking for a knife sharpener to give your blades a super quick makeover, the Accusharp is worth checking out. This little device wraps around your hand (don't worry, there's a plastic guard to protect your fingers), then you drag your knives through the angled tungsten sharpening blades 10 times. It's low maintenance, fits easily in a kitchen drawer, and is incredibly simple to use.

Nonetheless, the Accusharp is one of the most polarizing knife sharpening options out there. Some say that the super-affordable device is a budget-friendly miracle for saving dull knives. Others argue it's too aggressive and destroys blades without properly sharpening them. The truth lies somewhere in the middle.

I tried out the Accusharp on my big kitchen cleaver, which I picked up for cheap years ago and often use to hack through stubborn vegetables. After just a few swipes, the blade was noticeably sharper and made slicing through a butternut squash much less of an arm workout. However, since the sharpener only has one angle, I'm hesitant to use it on some of my fancier knives, especially the Japanese ones, which have more of a slanted blade angle.

Regardless, for a quick sharpening fix, the Accusharp is tough to beat. Plus it stows away easily in my kitchen drawer, which is nice when counter space is at a premium.

  • Style: Manual
  • Abrasive Material: Carbide
  • Dimensions: 9 x 4 x 1 inches

Best Keeper-Upper: Cooks Standard Professional Ceramic Rod

Ceramic Rod Knife Sharpener

A honing rod is not a standalone knife sharpener. Instead, the long rod, which typically comes in metal, diamond carbon steel, or ceramic, keeps knives in shipshape in between more intensive sharpening sessions. It takes a few practices to get the hang of the honing motion, in which you run the blade of the knife alongside the rod at an angle. However, once you fall into a rhythm, it's an oddly satisfying ritual. Hone your knives once every week or so to make sure they stay at their sharpest, as well as to extend the amount of time between sharpenings.

I like ceramic honing steels because they're harder than their metal counterparts but softer than diamond carbon steel. That means they work on harder knives, like Japanese ones, but are also gentle enough to give your blade a super fine edge.

  • Style: Manual
  • Abrasive Material: Ceramic or diamond carbon steel
  • Dimensions: 9 x 4 x 1 inches

Best for Ceramic Knives: Shenzhen Knives Electric Diamond Knife Sharpener

Knife Sharpener Tool
Courtesy of Amazon

If you've noticed that your ceramic knives haven't been getting the TLC they need from your standard sharpener, investing in an electric grinding stone, like this one from Shenzhen Knives, will restore and maintain their original sharpness. Perfect for stainless steel knives as well, this professional-grade sharpener ensures that your blade always comes in contact with the sharpening wheel regardless of its size and handle. Plus, its two-stage design sharpens and hones the knife's blade as opposed to solely sharpening it, creating that same fine, smooth edge that it had when you first bought it.

  • Style: Electric
  • Abrasive Material: Diamond (600 and 800 grit)
  • Dimensions: 9 x 4 x 1 inches
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