File Tagging Tools

Obsidian is a note-taking app that lets you create a personal knowledge graph with ease. It is designed for non-linear thinking and allows you to easily link your notes together wiki-style.

On-premises file sync, universal access, integrated collaboration, real-time communication with privacy and data control focus.

Open source note-taking app with Markdown support, to-do integration, and synchronization with cloud services like Dropbox and OneDrive.

Put your files into your Dropbox on one computer, and they'll be instantly available on any of your other computers that also have Dropbox installed. Because copies of your files are stored on Dropbox's secure servers, you can also access them from any computer or mobile...

Store bookmarks with related content, organize thematically with real-time collaboration and privacy focus, offering web clipper and cloud sync.

Advanced audio player supporting MP3, FLAC, and more. Features gapless playback, customizable UI, audio CD ripping, ReplayGain, and plugin support.

Local-first, privacy-focused notebook supporting Markdown and Org mode, offline use, encrypted backup, extensible with plugins, and more.

Organizes notes, tasks, and projects offline using Markdown, P2P syncing, and encrypted storage, complemented by dynamic collections on all devices.

An end-to-end encrypted note-taking by Proton. Offline access, unlimited sync across devices, tagging, passcode and biometric security, plus advanced premium privacy features.

Zotero is a free, easy-to-use tool to help you collect, organize, share research and cite your research sources directly in your favourite word processor, with 300 MB free online storage.

Open-source, end-to-end encrypted backup and sharing for photos and videos, with multi-platform sync, original quality, privacy controls, and collaborative albums.

Easily back up, organize, and manage your photos on your own server. Immich helps you browse, search and organize your photos and videos with ease, without sacrificing your privacy.

Comprehensive writing tool for notes, citations, and drafting with privacy-first features and multi-language support, perfect for diverse writing tasks.

Cross-platform free audio player and library organizer supporting local and internet radio playback, smart playlists, projectM visualizations, tagging, and transcoding.

Filen is a cutting-edge cloud storage provider that offers client-side, end-to-end, zero-knowledge encryption. Headquartered and operated entirely in Germany, Filen is at the forefront of combining comprehensive features with uncompromising privacy and security.

Modern Windows file manager with tabbed browsing, dual-pane view, column navigation, integrated archive tools, file tagging, QuickLook support, and appearance customization.

Multifunctional cross-device tool captures ideas, lists, voice/photo notes. Features color coding, geo-fencing, checklists, and cloud sync.

Comprehensive photo management software for viewing, batch converting, editing and resizing images and creating thumbnail sheets.

Open-source, cross-platform explorer with a distributed filesystem in Rust, organizing files securely across cloud and local storage on multiple devices.

Open source non-destructive RAW photo editor and image database with lighttable and darkroom views, real-time editing, HDR and scientific image support.

Advanced digital photo management software with features to organize, tag, compare, and process photo collections, supporting multiple formats including RAW.

Picard is the next generation MusicBrainz tagging application. This new tagging concept is album oriented, as opposed to track/file oriented like the ClassicTagger was. Picard is written in Python, which is a cross-platform language, and makes use of cross-platform libraries -...

Manages and organizes music libraries, playlists, and folders, supports podcasts and web radio, advanced tagging, CD ripping, device sync, and multiple audio formats.

Usability-focused file manager with tabbed browsing, dual panes, remote protocol support, archive browsing, integrated renaming, and file type previews.

Edit and organize audio metadata easily with comprehensive support for batch editing and various audio formats. Available free for Windows; macOS version costs $20.