Listudy is a free and open source chess training site that uses spaced repetition to help users memorize openings, train tactics, and practice endgames against Stockfish. It also offers blind tactics, where the board shows a position from several moves earlier, and pieceless tactics, where an empty board is accompanied by a list of piece locations. The source code is available on GitHub.
A collection of apps that scan and analyze chess diagrams from websites, ebooks, images and videos. It includes a Browser Extension, a Mobile App, an eBook Reader and a Library for saving and organizing positions. The Browser Extension scans chess diagrams in a browser and can add a Videos section to Chess.com analysis in Chrome. The eBook Reader opens PDF chess books and processes diagrams for analysis.
AutoChords is a chord progression generator. Users choose a progression type and key, and the tool shows the main progression with its notes, alternative progressions derived from the circle of fifths, and all standard chords in the key. It includes a randomize option and an edit/export function.
Lightnote offers basic music theory lessons presented as interactive mini-lessons without complicated jargon or confusing notation. The lessons cover how sound works as a wave and harmony, and aim to help learners make their own music, chord progressions and melodies. The site states that no instruments are required.
Z-Tonnetz is a free browser-based beta visualization of a neo-Riemannian Tonnetz in 3D. It plays any MIDI file or a user's keyboard and shows chords, voice leading and key relationships in real time. The page notes that these are highly experimental features and some may not work as intended.
Midiano is an interactive piano-learning app that runs in a modern browser. It opens MIDI files and shows notes as falling bars over a piano with corresponding sheet music. Users can connect a MIDI keyboard for instant feedback, adjust song speed, loop sections and generate sheet music. It runs client-side and can be installed for offline use.
HamExam.org offers free practice exams and flash cards for the Technician, General, and Amateur Extra amateur radio question pools. The site was built in 2003 and requires no sign-up for practice; a free account adds question prioritization and progress tracking across sessions.
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A collection of apps that scan and analyze chess diagrams from websites, ebooks, images and videos. It includes a Browser Extension, a Mobile App, an eBook Reader and a Library for saving and organizing positions. The Browser Extension scans chess diagrams in a browser and can add a Videos section to Chess.com analysis in Chrome. The eBook Reader opens PDF chess books and processes diagrams for analysis.
AutoChords is a chord progression generator. Users choose a progression type and key, and the tool shows the main progression with its notes, alternative progressions derived from the circle of fifths, and all standard chords in the key. It includes a randomize option and an edit/export function.
Lightnote offers basic music theory lessons presented as interactive mini-lessons without complicated jargon or confusing notation. The lessons cover how sound works as a wave and harmony, and aim to help learners make their own music, chord progressions and melodies. The site states that no instruments are required.
Z-Tonnetz is a free browser-based beta visualization of a neo-Riemannian Tonnetz in 3D. It plays any MIDI file or a user's keyboard and shows chords, voice leading and key relationships in real time. The page notes that these are highly experimental features and some may not work as intended.
Midiano is an interactive piano-learning app that runs in a modern browser. It opens MIDI files and shows notes as falling bars over a piano with corresponding sheet music. Users can connect a MIDI keyboard for instant feedback, adjust song speed, loop sections and generate sheet music. It runs client-side and can be installed for offline use.
HamExam.org offers free practice exams and flash cards for the Technician, General, and Amateur Extra amateur radio question pools. The site was built in 2003 and requires no sign-up for practice; a free account adds question prioritization and progress tracking across sessions.
