Open-source alternatives to Microsoft OneNote
24 open-source projects that replace Microsoft OneNote, 6 of them for the whole job.
Open alternatives24
Notes, personal knowledge and team wikis. See the whole group
AppFlowy is a workspace for writing notes, documents and plans, with an optional AI assistant. It is for people who want a Notion-style tool that keeps their data under their own control, and it runs on desktop, phone and self-hosted servers.
AFFiNE is a workspace that combines documents, whiteboards and tables in one app, in the style of Notion. Your notes are stored on your own device by default, and you can host it yourself.
Joplin is a free note-taking and to-do app that keeps your notes on your own devices, so they work offline. It is for people who want to write, organise and search notes in Markdown and sync them across devices with end-to-end encryption.
SiYuan is a note-taking and knowledge management app that links notes together at the level of individual paragraphs and blocks. It is for people who want to organize personal notes privately, on desktop, phone, or their own server.
Logseq is a note-taking and knowledge management app where you write linked notes, tasks and PDF annotations. It is aimed at students, professionals and anyone who wants to organise ideas and notes.
Notesnook is a note-taking app that encrypts your notes on your device so only you can read them. It is for people who want private notes on computers, phones, and the web.
Memos is a simple note-taking app that keeps your everyday thoughts in a personal timeline, with tags to connect related notes. It is for people who want to run their own notes on their own server and choose what to keep private or share.
Trilium Notes is a free, open-source note-taking app that arranges notes in a deep tree, so you can build a large personal knowledge base. It is for people who want to keep lots of notes organised on their own computer, phone, browser, or their own server.
Docmost is a shared wiki and documentation tool where teams write, organize and edit pages together in real time. It is aimed at teams that want a place to keep notes and documentation, and it can be run on your own server.
BookStack is a platform for writing and organising documentation and wiki pages, with books, chapters and pages. It is aimed at teams and individuals who want a simple place to store information.
Xournal++ is a desktop app for taking handwritten notes with a pen or stylus, and it can also be used to mark up PDFs. It is for people who want to write, draw and annotate notes on a computer, with an Android version also available.
Zettlr is a desktop app for writing notes and publications in plain text, with citation and export support. It is aimed at students, researchers and writers who want to keep their notes on their own computer.
NoteGen is an app for collecting notes, links, images and recordings and organizing them into Markdown notes, with optional AI help. Your notes stay as plain files on your computer or phone.
HedgeDoc is a web app where several people can write and edit markdown notes together in real time. It is for people who want a self-hosted, shared place for notes and documents.
Yank Note is a desktop and web Markdown editor for writing notes and documents, with plain Markdown files saved on your own computer. It is aimed at programmers and people who want an extensible, VSCode-like note editor.
Standard Notes is a note-taking app where notes are encrypted so only you can read them, and they sync across your devices. It is aimed at people who want private notes and writing they can keep for years.
SilverBullet is a free notes app that runs in your web browser and stores your notes as plain Markdown pages on a server you control. It is aimed at tech-minded people who want to host their own notes and customize them with scripts.
MediaWiki is free wiki software that lets many people write and edit linked pages together, and it runs Wikipedia. It is for groups or sites that want to host their own collaborative wiki.
Notally is a simple notes app for Android phones that lets you write, colour, pin and label notes, add pictures and reminders, and export them. It is for people who want a light, private notes app that works without sync.
Quillpad is an Android app for taking markdown notes, keeping task lists, and setting reminders. It is for people who want a private, ad-free place to keep notes on their phone.
XWiki is a wiki platform for building shared websites where people write and link pages together. It is for teams and organizations that want to run their own collaborative knowledge base.
Notabase is a personal knowledge base where you write notes and link them together to browse and find connections between ideas. It is aimed at people who want a personal wiki for their own thinking and can be used in a browser or installed as a web app.
Nextcloud Notes is a simple app for writing notes, which are saved as files on a Nextcloud server. It suits people who run their own Nextcloud and want their notes stored there in Markdown format.
Folio is a self-hosted team wiki where every page is a Markdown file in a Git repository, edited together in the browser in real time. It is for teams replacing Notion or Confluence who want to run it themselves and keep their content as plain files.
Before you build
Planning something for an alternative to Microsoft OneNote? See what exists first, so you can reuse parts or explain what's different. Paste this into any AI assistant: