While the guitar tuner is likely the most unglamorous purchase for your instrument, it's probably the one you’ll use most. Before purchasing your tuner, it’s worth giving our buying guide a read, as there are many options from electric guitar tuners to acoustic. For live shows, you’ll probably need a pedal. For just tinkering in your room, a handheld or clip-on with a microphone should do.
This guide details our top tips for shopping for the best tuner, including our ten best choices in the UK from Amazon and Gear4music. From vibrant Snark options perfect for beginner guitarists to classic, hand-held Korg tuners built for the pros. Not only will this guide help you recognise which one is best suited to your needs, but you might also learn a thing or two to impress your muso pals!
Quick List - Top Guitar Tuners
TC Electronic
The Most Accurate Tuner Out There, With Multiple Modes and a Built-in Buffer
Planet Waves
One of the Smallest Clip on Tuners Available With an Impressive Accuracy and a Metronome
D'Addario
A Compact, Responsive and Accurate Tuner With a Universal Clip and Highly Sensitive Transducers
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Table of Contents
Invented in the mid-90s, clip-on tuners are probably among the most popular types available. They simply clip onto the headstock of your guitar and measure the pitch using a contact microphone that picks up the vibration from the wood.
These tuners are pretty straightforward, with only a few modes, making them ideal for someone who has never used a tuner before. They use a chromatic mode (the most common) and pick up the 12 notes of the chromatic scale in Western music. They also tend to have a guitar, bass or ukulele mode.
However, while they do work in a live setting, many guitarists prefer a more professional set-up that uses a pedal rather than a clip-on. They're also prone to running out of batteries now and then, but they are pretty cheap.
Pedal tuners work in a similar way to any other guitar pedal. Plug in, set up and stomp on the switch. From there, the tuner will cut your sound, and you’ll be free to tune without anybody hearing.
Many of these pedals are made using steel enclosures, so they can really take a pounding. These pedals also tend to have multiple modes, including chromatic, the strobe mode, which allows players to be accurate within +/- 0.1 cent, and the polyphonic mode, which enables you to strum all six strings at the same time!
The downside is that they’re a fair bit more expensive than the clip-on tuners, so you’ll want to make sure that you need this one before purchasing. They’ll also need powering, which means you’re going to need a 9 V battery or a 9 V DC connector, which, again, is going to cost a little more.
If you love tinkering with pedals, set yourself up with a pedalboard power supply!
Handheld tuners were a big advancement in guitar tech when they appeared on the scene in 1975 (the Korg W10 was the first). Although they weren’t entirely accurate, they were close enough that they completely blew up. They’re compact, relatively cheap and generally more convenient, like the clip-on.
The problem with the handheld compared to the clip-on is that they don’t read vibrations - instead, these tuners read the sound. This can make tuning tricky when you're in a loud place, as the tuner will also be picking up background noise.
Check out our list f the best guitar amps for home use!
Soundhole tuners are strictly for acoustic players. This style fits, well, in the soundhole of the guitar! Although, it’s worth mentioning that they’re incredibly inconspicuous and won’t affect the guitar's sound.
They’re also super convenient as they can be left on, whereas handheld or clip-on tuners are just one more accessory that you could forget. These are generally less common and low on tuning modes, but they’re competent, reasonably accurate and will get the job done.
With these, you'll be required to tune manually. However, there will be an automatic shutoff mode, which is ideal for those that are a little forgetful as they’ll save battery life. This automatic shutoff generally kicks in after around 10 minutes, although some are as quick at turning off after 5.
Automatic tuners are a new breed in the tuner world, as they’re more of a tool than a tuner. Instead of manually turning the machine heads on your instrument, you will let the tuner do it for you. All you need to do is select your pre-set, give the string a pluck as you usually would, and the gadget will do the rest.
As you’d imagine, these are not as common as the other tuners as they’re incredibly new. Therefore, they’re not only more difficult to find, but they’re also much more expensive. That said, they’re still compact and transportable and relatively accurate.
When it comes to the accuracy of a guitar tuner, there are a few things one should know. The unit of measurement for tuning is cents, and there are 100 cents in a semitone. So, if you play an A, then an A#, you have moved up a semitone, or 100 cents.
Now, since there are 100 cents in a semitone, you would have to be pretty drastically out of tune for it to be noticeable to a regular audience. However, some people have perfect pitch and may discern a player who is two or three semitones off. That said, most people will not be able to discern around 5 cents, so there’s a bit of leeway.
When it comes to tuner manufacturers, most companies provide the tuning accuracy in a margin error format, for example, +/- 1 cent. Therefore, the smaller the margin of error, the more accurate the tuner will be. It's recommended to look for margins with a minimum of +/- 1 cent, although you'll find many that are even lower!
Products | Image | Click to purchase | Key features | |
---|---|---|---|---|
1 | TC Electronic Polytune 3 | ![]() | The Most Accurate Tuner Out There, With Multiple Modes and a Built-in Buffer | |
2 | Planet Waves NS Micro Headstock Tuner | ![]() | One of the Smallest Clip on Tuners Available With an Impressive Accuracy and a Metronome | |
3 | Boss TU-3 | ![]() | A Trusted and Indestructible Option With Multiple Modes for All Kinds of Players | |
4 | D'Addario NS Micro Soundhole Tuner | ![]() | A Compact, Responsive and Accurate Tuner With a Universal Clip and Highly Sensitive Transducers | |
5 | Boss TU-02 | ![]() | A Robust Clip-on Tuner for Guitar, Bass or Ukulele Players Featuring Auto Shut-off and a Chromatic Mode | |
6 | Peterson StroboStomp HD Compact Strobe Pedal Tuner | ![]() | A Pitch Perfect Pedal With Extremely High Accuracy and Over 135 Tuning Presets | |
7 | Korg RP-C1 | ![]() | A Sensitive Soundhole Option With a Chromatic Mode Especially Made for Acoustic Players | |
8 | Korg GA-50 | ![]() | A Guitar and Bass Tuner With an Easy-To-Read Display From the Original Creators of the Handheld | |
9 | Snark ST-2 Clip-On Chromatic | ![]() | A Super Reliable and Highly Popular Tuner Featuring a Metronome and a 360-Degree Rotation Clip | |
10 | Roadie 3 Smart Automatic Guitar Tuner | ![]() | An Automatic Tuner With Over 100 Tunings That Does All the Work for You |
There's an incredible amount to love about this tuner, hence why it nicked our top spot. First and foremost, it's the most accurate on the market, coming in at +/- 0.02 cents - not that anyone will ever be able to tell, but it's nice to have peace of mind. Not only that, you have the most options in terms of mode with either strobe, chromatic or polyphonic.
If that wasn't enough, the built-in bonafide buffer ensures a true bypass signal, so you never have to worry about a change to your tone when it's plugged in. However, you can opt for a buffered bypass should you want that little extra boost. All of this comes in at an extremely reasonable price - especially considering how much you're going to use it.
Often, the biggest downside to the clip-on tuner is that they're chunky and can completely mess up your look. Whether we like to admit it or not, guitar players are vain! So, this nifty little guy from Planet Waves tries to avoid that pitfall by being one of, if not the, smallest clip-on tuner on the market.
That said, you don't have to worry about losing functionality because of its size. The accuracy is an incredibly impressive +/- 0.3 cents, it's chromatic, and there's even a metronome slipped in for good measure. So, you get all the features at half the size.
Boss are the originators of the compact guitar pedal, and their tuner line has been an industry standard for as long as we can remember. The TU-3 is trusted by many guitar players, from the local pub's cover acts to the band's who headline Wembley Arena.
They have a highly impressive +/- 0.1 cent accuracy and chromatic and strobe modes, depending on which you'd prefer. The prominent standout feature for many Boss enthusiasts, though, is that they're practically indestructible. So, if you buy one, you've almost certainly got a tuner for life.
While many of the soundhole tuners are small, this offering from D'Addario is by far the smallest and least intrusive of the lot. The device is mounted by a non-marking (important) universal clip that many people even looking for it wouldn't see. The chromatic base also gives you the option of tuning however you'd like.
However, our favourite aspect is how they've managed to get such a bright and articulate display that makes for effortless viewing. Moreover, the tuner features highly sensitive transducers that provide a fast and accurate response.
Boss is known for setting the bar with many equipment accessories, and their take on the clip-on tuner is one of the best out there. Although marketed as a guitar tuner, it also works with bass and ukuleles and has a chromatic mode should you wish to start experimenting with alternate tunings.
The enclosure itself is robust and sturdy, as with everything boss makes, so you can be sure that if you throw it in your gig bag, you don't have to worry about being too delicate. Moreover, the tuner has an auto-shutoff, which kicks in after five minutes of inactivity.
As we mentioned in the buying guide, the strobe setting is the most accurate of all types. This mode is usually found on a pedal style tuner, however, Peterson has built this pedal around that style of tuning instead of just including it. Therefore, if perfect pitch is your goal, then you'll find this a treat!
Furthermore, the device also includes over 135 tuning presets. To be frank, we didn't even know there were that many, but what's not to like about having them available? Of course, the strobe style can be tricky, so it's probably left to the more advanced musicians.
Here we have another soundhole tuner. As you can see, the designs are tiny, but that tends to be what acoustic players love about them as they don't ugly up their guitars. The contours are crafted to fit a variety of different guitar holes, so you shouldn't have to worry about it being suitable for your axe. Plus, the tuner is chromatic, so alternative tunings are still available.
The device is known to be quite sensitive, which means that you don't have to play too loud for it to pick up the resonance, which is especially useful when gigging. However, the battery life isn't the best, meaning you'll want to load up on some spares.
Korg was the first to market with the compact handheld tuner and have established itself as the industry standard ever since. Here, we have one of their latest versions, the GA-50. It has only two modes - bass and guitar, but there's an extra sound out setting that helps when you replace strings.
The new display is bigger and easier to read than ever before, plus due to the lack of bright colours like many other tuners, the batteries tend to last that bit longer. The downside to that, of course, is that it's challenging to use in the dark.
It's practically a given that most guitarists in the world have gone through at least a dozen of these. The Snark ST-2 is a super reliable tuner with a built-in metronome. The display is fantastic, with vibrant LED lights that ensure you can see everything, even if you're tuning up on a dimly lit open mic night stage.
The clip itself has a 360-degree rotation, which is handy considering guitars come with a wide array of different headstocks. The downside is that the batteries will only give you a couple of months at a time if you play regularly, so you could find yourself needing to change them a little too frequently.
The Roadie 3 isn't exactly something you'd find lying around band rooms or bedroom studios. However, all that could be about to change! These automatic tuners use sensors to pick up the vibrations of the wood, much like a clip-on tuner. The big difference is that this one does the tuning for you.
If that isn't enough, there are over 100+ different tunings for guitar, bass, ukulele, 12-string, banjo and mandolin. Sure, it's on the expensive side, and we imagine that's what's holding it back from becoming more popular. But, if you have the cash to spare, why not give it a shot.
How to tune your guitar will depend on the type of tuner you're using, but here's a general guide to give you the gist.
Written and researched by Lewis Clark
No. 1: TC Electronic|Polytune 3
No. 2: Planet Waves|NS Micro Headstock Tuner
No. 3: Boss|TU-3
No. 4: D'Addario|NS Micro Soundhole Tuner
No. 5: Boss|TU-02
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