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Online Tuner

Tune your instrument with precision

Online Guitar Tuner with Alternative Tunings

Our free online chromatic tuner is the perfect tool to tune your guitar, bass or ukulele with professional precision. Compatible with popular and specialized alternative tunings.

🎸 Available Guitar Tunings

  • Drop D (D-A-D-G-B-E) - The most popular alternative tuning for rock and metal
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    Lowering only the 6th string to D gives heavier lows and easier one-finger power chord shapes. It became especially widespread in 90s grunge and alternative metal.

  • DADGAD - Perfect for Celtic and folk music
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    It naturally creates open drones and suspended harmony, ideal for acoustic fingerstyle. It is often linked to Davey Graham, who helped popularize it in British folk guitar.

  • Open D and Open C - Ideal for slide guitar and blues
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    With open tunings, strumming unfretted strings already produces a full chord, which makes slide phrasing much more direct. They are staples in blues, roots rock, and modern folk.

  • Open E - The favorite for traditional blues
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    Its brighter high-tension response works great for expressive electric slide work. Historic players such as Duane Allman used it in several iconic recordings.

  • Half-step down (Eb) - Used by Jimi Hendrix and Slash
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    Dropping every string by a semitone softens string tension, helps bends feel easier, and adds a darker color. It remains a classic choice in hard rock studio and live setups.

  • Double Drop D - Powerful for power chords
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    Both E strings are lowered to D, opening up low drones and bright melodic shapes at the same time. It is very useful for acoustic arrangements and suspended chord voicings.

🎸 Bass Tuner with Multiple Configurations

  • 4, 5 and 6-string bass - All standard configurations
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    The 4-string format is still the foundation in most genres, while 5 and 6 strings extend low and high range for modern arrangements, fusion, and session work.

  • Drop D, Drop C, Drop B, Drop A - For heavy and modern styles
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    Lower drop tunings add weight and align the bass with down-tuned guitars in modern metal and djent. They also change playing feel and right-hand articulation.

  • Fifths tuning (CGDA) - Advanced alternative technique
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    Organizing strings in fifths, like cello-family instruments, gives wide melodic reach per string. It is powerful but requires relearning common fingering patterns.

  • Tenor bass and Piccolo bass - Specialized configurations
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    These higher-register setups are great for melodic lines and arrangement layers close to baritone guitar territory. They are often used in studio creativity and niche repertoires.

🎸 Ukulele Tunings

  • Standard reentrant (GCEA) - The classic Hawaiian tuning
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    Its high 4th string creates the bright, jumpy character most people associate with ukulele. This setup played a key role in taking the instrument from Hawaii to global popular music.

  • Low G linear - Extended range for more versatility
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    Replacing the high G with a low G gives a linear string order that supports bass motion and fuller solo arrangements. It is a common upgrade for contemporary players.

  • Baritone (DGBE) - Deeper and lower sound
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    Sharing tuning with the top four guitar strings, baritone ukulele feels familiar to guitarists. Its warmer, lower voice works well in accompaniment and singer-songwriter settings.

  • D tuning - Popular in traditional music
    + Read more

    Common in some vintage and traditional contexts, D tuning increases overall tension and brightness compared with C tuning. Many classic methods and older instruments reference this setup.

✨ Tuner Features

  • Automatic detection of the string you're playing
  • Precise visual indicator with tolerance margin
  • Works with your device's microphone
  • Free, no installation or registration required
  • Compatible with mobile phones, tablets and computers

Whether you're a beginner or professional musician, our online tuner for alternative tunings will help you achieve the perfect sound for any musical style: rock, metal, jazz, blues, folk, Celtic music or modern experimentation.