Dull knives aren’t just annoying—they’re dangerous. If you’ve ever squashed a tomato instead of slicing it, you know the pain.
That’s where an electric knife sharpener comes in. These machines make sharpening foolproof, giving you razor-sharp edges in minutes.
We tested dozens and rounded up the 7 best electric knife sharpeners of 2025 to keep your blades cutting like butter.
All picks are available on Amazon U.S., so you can upgrade your kitchen tools ASAP.
SHARPAL 198H Electric Knife Sharpener
Tired of dull knives killing your cooking vibe?
The SHARPAL 198H Electric Knife Sharpener is here to save the day. It’s sleek, super easy to use, and gets your blades razor-sharp in seconds. No pro skills needed.
Why It’s a Total Game-Changer ✨
- 3-in-1 Slots → Sharpens everything from your Japanese chef’s knife to your trusty pocket knife.
- Perfect 20° Angle → Keeps blades strong, sharp, and long-lasting without you stressing about technique.
- One-Hand Friendly → Yep, you can literally sharpen with one hand while sipping your coffee.
- Quiet AF → Less than 65 dB noise… so no one’s giving you side-eye in the kitchen.
- Zero Overheating Drama → Built-in tech protects your blade from damage.
- Easy Cleanup → Magnetic receptacles catch the mess. Dump it out, done.
The Vibe: Think of it like upgrading from regular WiFi to fiber-optic speed. Once you try this sharpener, you’ll wonder how you ever put up with dull knives.
Sharpeak 198H-SPK Electric Knife Sharpener
Let’s be real: nothing kills the cooking mood faster than a dull knife.
Enter the Sharpeak 198H-SPK Electric Knife Sharpener — your all-in-one solution to keep every blade in your kitchen razor-sharp without the hassle.
Why This Sharpener Slaps 🚀
- 3-Stage Magic → Coarse diamond wheels restore, fine wheels sharpen, and ceramic slots polish your knife to perfection.
- Whisper-Quiet → Runs smooth without the annoying buzzing most sharpeners have.
- Diamond Power → Monocrystalline diamond wheels = pro-level sharpening that won’t wreck your knives.
- Dual-Shaft Tech → Keeps things balanced and efficient, so your blades stay sharper for longer.
- Overheat Protection → Smart design means no fried motors and no burnt-out knives.
- Super Easy → Standard 20° angle works for almost any knife — no brainwork needed.
Chef’sChoice Trizor XV EdgeSelect Professional Sharpener
- Stages: 3-stage sharpening
- Edge Angle: Converts to 15°
- Blades Supported: Straight and serrated
Why I like it: This sharpener transforms your old 20° knives into sharper 15° edges. It’s versatile, fast, and professional-grade—basically a chef’s secret weapon.
Best for: Serious home cooks who want pro-level sharpness.
Work Sharp Culinary E5 Kitchen Knife Sharpener
- Stages: Guided belt sharpening
- Settings: 3 pre-programmed options
- Extras: Comes with ceramic honing rod
Why I like it: Uses flexible belts for smoother edges and a quieter sharpening process. Sleek design looks great on countertops too.
Best for: Tech-savvy cooks who love precision and style.
Presto EverSharp Electric Knife Sharpener
- Stages: 2-stage sharpening
- Ease of Use: Automatic blade guides
- Budget-Friendly: Yes
Why I like it: Affordable and simple, this sharpener gets the job done. It’s user-friendly for beginners and perfect for quick tune-ups.
Best for: Budget-conscious cooks who want sharp knives without fuss.
Chef’sChoice 250 Diamond Hone Hybrid Sharpener
- Stages: 3 stages (electric + manual)
- Blades: Straight and serrated
- Durability: Diamond abrasives
Why I like it: Combines electric speed with manual precision. Ideal for those who want control without losing convenience.
Best for: Cooks who sharpen often but don’t want to overdo it.
Work Sharp Knife & Tool Sharpener Ken Onion Edition
- Stages: Adjustable belt sharpening
- Angle Range: 15°–30°
- Versatility: Also sharpens tools
Why I like it: Customizable sharpening angles let you tackle any blade, from pocket knives to cleavers. A powerhouse for knife geeks.
Best for: Enthusiasts who want full sharpening control.
Buying Guide – How to Pick the Right Electric Knife Sharpener
Stages
2-stage sharpeners are simple and budget-friendly, while 3-stage sharpeners give finer, pro-level edges.
Edge Angles
Most Western knives are 20°, while Japanese-style knives are 15°. Some sharpeners can convert between the two.
Versatility
If you own serrated knives or tools, make sure your sharpener supports them.
FAQs
Can electric sharpeners damage knives?
Not if used properly. Modern sharpeners use controlled abrasives to protect blades while sharpening.
How often should I sharpen knives?
Most home cooks should sharpen every 2–3 months and hone weekly for maintenance.
Do electric sharpeners work on serrated knives?
Yes, but only in specific stages designed for serrations. Check your model’s instructions.
The Bottom Line
The right sharpener keeps your knives safe, sharp, and stress-free. For the sharpest upgrade, go with the Chef’sChoice Trizor XV. Budget shoppers will love the Presto EverSharp, while knife geeks can have fun with the Work Sharp Ken Onion Edition. Whatever you choose, these sharpeners make dull knives a thing of the past.