No signup. No tracking. Everything runs in your browser.
FretLogic is a collection of free music tools that all run in your browser. Tuner, metronome, chord charts, scales, ear training. No accounts, no installs, nothing tracking you in the background. Open a tab and go.
Learn music theory the fun way. Answer questions, earn loot, buy weapons and armor, and build your own village — all while mastering notes, chords, scales, and keys.
Uses your mic to detect pitch in real time. Standard tuning, drop D, open G, plus a bunch of other presets. Or just play a reference tone and tune by ear.
Set your BPM, pick a time signature, hit play. Built on Web Audio so the timing does not drift like some browser metronomes do. Tap tempo, subdivisions, visual beat dots.
Tap along to any song and it figures out the tempo. Rolling average, confidence indicator, auto-reset between songs. Useful when you need to match a backing track or set up your click.
108 chord diagrams across every key. Open chords, barre shapes, 7ths, sus, dim, aug. Click any chord to hear it. Filter by quality or search for what you need.
Choose a root note, choose a scale, and the whole fretboard lights up with every position. Pentatonic, blues, major, minor, modes. Hit play to hear the scale. Guitar and bass.
Pick a key, click diatonic chords to build a progression, and hear the whole thing played back. Comes with presets for the pop standard, jazz turnarounds, 12-bar blues, and more.
A note lights up on the neck. Name it before time runs out. Three difficulty levels, string filters, and streak tracking. The fastest way to stop guessing where notes are.
Two notes play, you identify the interval. Ascending, descending, or random. Easy mode starts with four intervals, hard mode throws all thirteen at you. Tracks your accuracy over time.
Split your session into timed blocks with audio alerts between segments. Load a preset template or build your own routine from scratch. Saves everything locally so your plan is ready tomorrow.
Add songs, track keys and BPMs, drag them into order. Make separate sets for each part of the night. Print it or copy as text when you're done.
Enter the chords from a song and it tells you the key. Ranks results by match percentage so you can see which key fits best, plus flags any borrowed chords.
Paste lyrics with [bracket] chords, shift everything up or down by semitones. Jump directly to a target key. Also shows capo suggestions for easier fingering.
Convert between note names and Hz frequencies in either direction. Full reference table from C0 to B8. Adjustable A4 reference (440, 432, 442, whatever you want). Audio playback built in.
Visual beat display plus audio playback for any time signature. Common presets (4/4, 3/4, 6/8) and odd meters like 5/4 and 7/8. Includes a beat duration calculator.
A practical, no-nonsense guide to finally making scales stick — even if you've tried and failed before.
We compare native tuning apps to browser-based tuners on accuracy, latency, and convenience.
The essential progressions that show up in thousands of songs across every genre.