Best String Trimmer

String trimmers are essential to keep your lawn looking its best. They can trim hard-to-reach edges your lawn mower can't touch and clean up unruly fence lines. Some even convert to edgers. We combine the results of comparison tests by experts and hundreds of owner reviews to find out which string trimmers are the toughest, the easiest to use and the best value.
Ego ST1501-S Review
Best Reviewed

Best cordless grass trimmer

Ego ST1501-S

The Ego ST1501-S gets top ratings for smooth trimming and easy handling from pros and consumers alike. It's one of the more powerful cordless models available, with the ability to handle tall grass and weeds that rivals that of lightweight gas models. Starting is easy, and the weed whacker is generally described as easy to use. Expect about a half hour of run time before a recharge is needed.

Black & Decker GH3000 Review
Best Reviewed

Best electric string trimmer

Black & Decker GH3000

The corded electric Black & Decker GH3000 string trimmer offers great value and good performance. There's only one cutting line, but that doesn't stop it from being a competent performer with all types of cutting tasks. Pluses include a swiveling head and a wheeled edge guide, which makes use as an edger both easier and more convenient. Weighing in at less than 7 pounds, this curved shaft edger is easy to handle.

Echo SRM-225 Review
Best Reviewed

Best gas string trimmer

Echo SRM-225

Experts say the heavy-duty Echo SRM-225 gas-powered string trimmer is a cut above the rest, reliably mowing down even the toughest grasses and weeds. Durability impresses, as does the five-year warranty for residential use. Cutting power is described as "nearly explosive" in one expert review. Users are similarly impressed. At 12 pounds, it's on the hefty side, but handling and ergonomics are generally well liked.

A top string trimmer is the secret to a perfectly manicured lawn.

String trimmers leave a crisp edge along the driveway, cut grass growing beyond your lawnmower's reach and tidy up growth along fence lines. Also called grass trimmers, weed whackers, lawn trimmers and weed eaters -- the last a brand name that has become a generic term, much like Kleenex for tissues and Xerox for copy machines -- the setup is the same: A power source rapidly turns a cutting head, using tough, nylon line to shear grass and weeds.

People generally mow first, then trim, so be sure to read our reports on lawn mowers or, if you have lots of property to look after, lawn tractors to round out your lawn-care needs.

Grass trimmers pack lots of power. Roy Berendsohn of Popular Mechanics notes that "the speed measured at the string's tip can run about 28,000 feet per minute," or strong enough to strip bark, mar a wood deck and fling debris up to 50 feet away. This makes safety equipment a must. Always wear safety goggles to protect your eyes and ear protection if the noise of the trimmer is above 85 decibels; keep the head of the tool angled away from your body. Long pants, sturdy shoes and a good pair of gloves are also recommended to protect against flying debris.

Consider your property when selecting a string trimmer. A smaller weed whacker is enough to manage trimming around flowerbeds and a walkway. Berendsohn recommends heavy-duty weed eaters for the "rural homeowner with a long driveway, orchards, fence rows and outbuildings to keep neat." Durable machines like this are typically heavier and more expensive.

Ergonomics are important, too. A balanced trimmer will hang at the right angle for easy maneuvering, whether you're trimming flat or turning it to edge. Most trimmers automatically advance the trim line, although some require you to tap the trim head on the ground to do so; reviewers say either type is acceptable as long as it works smoothly. Reloading new trim line into the spool should also be uncomplicated.

String trimmers come in three main varieties:

Cordless weed whackers give you the mobility of gas models (discussed below), but without needing to deal with gasoline and its downsides -- fumes, higher maintenance, and harder starting. However, they are best for smaller properties as they will only go as long as the battery will last before needing a recharge -- though keeping a charged spare battery on hand is a popular workaround for that.

Corded electric string trimmers are the lightest and least expensive type. They have the power to deal with even tall grass, but their range is limited as they must always be tethered to an AC outlet. Still, if your property is on the smaller side, they are a reasonable alternative to a cordless model.

Gas string trimmers are best for those with large properties, and for gardening and landscaping professionals. They are heavy, harder to handle than electric models, and require more maintenance. However, if you need to clear a fence line, or have lots of tall grass and weeds that need trimming, a gas string trimmer is the way to go.

Finding the best weed eaters

To find the best string trimmers, editors looked to experts at, Popular Mechanics, and elsewhere to see which weed whackers excelled in hands on testing. To see how well string trimmers performed in real-world conditions, and often over the long haul, we turned to user reviews. Sites such as,, and were most helpful for that. Considering factors such as performance, safety, ease of use and more, the results of our research are our picks for the best string trimmers for anyone from a casual gardener to landscaping pro.