Binderus
Binderus is a local-first note-taking app for Linux, macOS, and Windows.
What Binderus is
Binderus is a local-first note-taking app for Linux, macOS, and Windows. It edits plain Markdown files in a WYSIWYG editor with slash commands, tables, code blocks, LaTeX math, and Mermaid diagrams. You can organize notes in multiple vaults and use instant search, plugins, themes, wikilinks, and backlinks. Notes can remain ordinary Markdown files or be stored in an optional encrypted local database. That database uses AES-256 and derives its key from a passphrase with Argon2id; Binderus says a lost passphrase cannot be recovered. Images and attachments stay unencrypted on disk unless attachment encryption is enabled. The app has no proprietary sync server, but its documentation describes syncing vaults through services and tools such as iCloud Drive, Dropbox, OneDrive, Google Drive, Syncthing, or Git. Vaults must be in the operating system’s Documents directory for Binderus to access them. It works offline, is open source, and includes PDF, DOCX, and HTML export. The full desktop app is free forever, with no account required.
Good
- Free desktop app with every feature included.
- Works offline on Linux, macOS, and Windows.
- Markdown files remain usable in other text editors.
- Exports to PDF, DOCX, and HTML.
- Plugins show declared capabilities before installation.
Watch out
- Lost encryption passphrases cannot be recovered.
- Attachments remain unencrypted unless encryption is enabled.
- Vaults must be under the Documents directory.
- No proprietary sync server is provided.
Who it suits
Binderus suits people who want local Markdown notes, simple organization, and no proprietary format lock-in. It is also relevant to users who want offline access or optional local encryption.
Verdict
Binderus combines Markdown editing and organization with local storage and optional encryption. Its free plan and portable files suit people who prefer control over where notes are kept, though the Documents-folder requirement and attachment caveat matter.
Plans and prices
From Binderus's own pricing page, checked 4 Oct 2026.
| Plan | Price | What it gives you |
|---|---|---|
| Full app | Free | Every feature included · desktop app · Free forever; no account required |
The facts
Each one read from Binderus's own pages, with the date it was checked.
What it does
- AI integrations
- Its built-in AI Chat plugin supports OpenAI-compatible services including Ollama, LM Studio, OpenAI, DeepInfra, Groq, Together, and OpenRouter.checked 4 Oct 2026
- Editor
- The live Markdown editor includes slash commands, tables, code blocks, LaTeX math, and Mermaid diagrams.checked 4 Oct 2026
- Encryption
- The encrypted database uses AES-256 with a passphrase and derives its key with Argon2id; Binderus says a lost passphrase cannot be recovered.checked 4 Oct 2026
- Integrations
- The docs describe syncing vaults through iCloud Drive, Dropbox, OneDrive, Google Drive, Syncthing, or Git; Binderus has no proprietary sync server.checked 4 Oct 2026
- Intended audience
- The maker describes Binderus as a lightweight note app for people who want simple organization, local files, and no proprietary format lock-in.checked 4 Oct 2026
- Organization
- The app lists multi-vault support, instant search, plugins, themes, wikilinks, and backlinks.checked 4 Oct 2026
- Plaintext caveat
- Images and attachments remain unencrypted on disk unless attachment encryption is enabled.checked 4 Oct 2026
- Plugin security
- Plugins run with a curated API and have no raw filesystem access or unrestricted network fetch by default; declared capabilities are shown before installation.checked 4 Oct 2026
- Portability
- Markdown notes can be opened in other text editors, and Binderus can export to PDF, DOCX, or HTML.checked 4 Oct 2026
- Purpose
- Binderus is a local-first note-taking app with WYSIWYG editing of plain Markdown files.checked 4 Oct 2026
- Storage
- Notes can be stored as ordinary Markdown files or in an optional encrypted local database.checked 4 Oct 2026
- Support
- The docs direct users to the FAQ, Discord, or GitHub issues for help.checked 4 Oct 2026
- Sync limitation
- Vaults must be located under the operating system’s Documents directory for Binderus to read and write them.checked 4 Oct 2026
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