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Work · alternatives · 2026

24 alternatives to Flat – Music notation software: Web-based and Real-time collaboration

Flat is intuitive music notation software for Mac, Windows, web, iOS & Android. Compose, collaborate, play & print sheet music from any device.

Flat is music notation software available on web, desktop, and mobile devices that lets users compose, edit, and print sheet music. It features real-time collaboration tools, allowing multiple users to work on scores… Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Flat – Music notation software: Web-based and Real-time collaboration launched in 2016; newer entries below may have overtaken it.

  1. 1
    Flat▲134

    Collaborate in real time on your sheet music

    2015 · flat.io · its alternatives →

  2. 2
    LightNote▲242

    An interactive site to learn the basics of music theory 🎶

    2016 · lightnote.co · its alternatives →

  3. 3NI
  4. 4

    Libre music sequencer for desktop and mobile platforms - helio-fm/helio-sequencer

    2017 · github.com · its alternatives →

  5. 5

    Online music editor with real-time collaboration

    2021 · composing.studio · its alternatives →

  6. 6
    cubic.fm▲375

    Save any music you run across, stream all on the same player

    2015 · its alternatives →

  7. 7

    I launched NumPad v1 on here a few years ago, and back then it wasn't much more than a thin CodeMirror wrapper around the calculator engine I'd written. Now I've rewritten it as a PWA that supports multiple documents, persists them to IndexedDB, and has a syncing service for paying customers. Syncing is handled by Automerge[1] under the hood, which should make it relatively easy to get document sharing working too. [1] https://automerge.org/

    2022 · numpad.io · its alternatives →

  8. 8

    A human-writable text format for musical notes, timing, and expression. - Daninet/mtxt

    Nov 2025 · github.com · its alternatives →

  9. 9
    Flat▲8

    Create, collaborate and discover sheet music

    2015 · flat.io · its alternatives →

  10. 10

    Hello HN, this has been my personal project for quite some time now. It has been a slowly evolving project over the years and its core function is for users to expose themselves to progressively more difficult lessons of music notes. NOTE: It is free and there are no ads. There is an in app purchase but most of the app doesn't require it.

    2025 · apps.apple.com · its alternatives →

  11. 11HS

    Hacklily is an online LilyPond-based sheet-music editor and publishing tool.

    2018 · hacklily.org · its alternatives →

  12. 12

    The collaborative note-taking app

    2020 · supernotes.app · its alternatives →

  13. 13

    9d ago · music.xy.dev · its alternatives →

  14. 14

    Collaborative music composition for everyone. Contribute to ekzhang/composing.studio development by creating an account on GitHub.

    2021 · github.com · its alternatives →

  15. 15

    The Ultimate Sheet Music Library Solution

    Mar 2026 · musiclib.net · its alternatives →

  16. 16

    Native (Mac & iOS) note-taking based on local Markdown files

    2020 · noteplan.co · its alternatives →

  17. 17SA

    As an enthusiast of Indian classical music, I needed to write music notations in the traditional typeset format. When I didn't find any existing editors, I developed a Swara Notebook, a mobile focused web app to write North Indian Classical (Hindustani) music notations. The notes (called Sargam, similar to Solfege) can be written in English, Devnagri and Bangla scripts. The transcribed song can be played back in 6 different rhythmic cycles (Taal) to the accompaniment of the Tabla(a type of drum) or a metronome. Here's an example of a transcribed song…

    2023 · swaranotebook.com · its alternatives →

  18. 18HA
  19. 19

    The Steinway & Sons Global Website

    2010 · etudeapp.com · its alternatives →

  20. 20

    Welcome to the Collate Blog! As our first blog post, let’s kick things off with the...

    2017 · collatenotes.com · its alternatives →

  21. 21

    Convert PDF files to annotated sheet music

    2024 · melodyscribe.com · its alternatives →

  22. 22

    PlayScore 2 takes traditional music scanning to the next level. Using the latest techniques in Optical Music Recognition (OCR for music).

    2019 · playscore.co · its alternatives →

  23. 23
    Jammin▲253

    Collaborative music software in your browser

    2024 · jamminstudio.co · its alternatives →

  24. 24

    I always found sheet music way too hard to read - and I literally spent a year at a company building a sheet music rendering engine. I wanted an app that would display music like the tutorials on YouTube, but not be focused on upselling lessons etc. like most current apps, and also would let me import my own files This works on MIDI files. If it’s a valid midi it probably plays. Since releasing, I did add a subscription for classical music - on a theory that most normal users don’t know what a midi file is. It changed about a month ago from an up front price to in app purchases and/or a…

    2023 · jacobdoescode.com · its alternatives →

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Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →