No Login ➜ No Backend ➜ No tracking

TagFlow is an interesting and potentially useful piece of software that aims to provide you with an efficient solution to manage, sort, and ultimately organize your files with the help of tags. This is a diagram of the tag control flow between a portal and portlets. Chocolatey is software management automation for Windows that wraps installers, executables, zips, and scripts into compiled packages. Chocolatey integrates w/SCCM, Puppet, Chef, etc. Chocolatey is trusted by businesses to manage software deployments.

Open and Extensible

The source code of the TagSpaces core is open source, published under the AGPL license. The application is designed to be easily extended with different extensions for visualization of directory structures or for opening of different file types. Most of the these extensions are published under the MIT open source license.

Intuitive and ease to use

TagSpaces offers you a convenient user interface to your local files and folders on Windows, macOS, Linux and Android. It is implemented using modern web technologies like JavaScript and HTML5. Since version 3 the application provides a dark mode.


Privacy by design

Keep full control of your files! TagSpaces is running completely offline on your computer or smartphone and does not require internet connection or online registration. It is up to you to decide if and with which tools (e.g. Nextcloud, Dropbox, Syncthing) you can sync your tagged files across different computers.

Tag and annotate files and folders

  • Organize your photos, documents, music, recipes or invoices with tags in the same way on all platforms.
  • TagSpaces features basic file management operations, so it can be used as simple file manager.
  • You can assign custom color to every folder and tag, which makes the visual search an easy step.
  • You can add a custom thumbnail and text description to every file or folder.
  • In contrary to the most file tagging applications, TagSpaces does not persists the tags in a centralized way. As a consequence, the added meta information is not vendor locked.

Taking notes in plain files

  • TagSpaces products can be used as alternative for Evernote's note taking and web scrapping functionalities.
  • You can create and edit notes in plain text, markdown or HTML file formats.
  • You can create To-Do lists and organize them in a kind of offline personal wiki for tracking your projects, ideas or memories.

Digital Assets Management

  • Browse and preview your virtual library in one application.
  • Preview your digital photos and images, open PDF documents and collected web pages.
  • Listen your music and show your videos.
  • Organize your e-book library.
  • The list of the supported files formats is growing.

Use TagSpaces Pro as a front-end for AWS S3 buckets

  • Browse, preview, tag and search files located on AWS S3 compatible buckets.
  • Edit files located in the cloud, directly in TagSpaces, without downloading and re-uploading them.
  • Upload new files to the AWS S3 with simple drag and drop actions.
  • Create your own Dropbox or Evernote like services only by using AWS S3 for hosting your files.

Place every file or folder on a map

  • Place any file or folder on a map
  • Annotate maps with files
  • Save favorite places, privately
  • Plan trips and places to visit
  • Extract geo coordinates from EXIF data embedded in JPGs

Collect online content locally

Save web pages, web snippets, screenshot from web page or bookmark to them on your local hard drive as simple files for later use.
  • We are offering Chrome and Firefox browser extensions for web clipping.
  • Saving whole web pages or only part of them, allowing you to use the application similar to the many 'read in later' services.
  • Take a screenshot from the visible part of the webpage or create a bookmark to it. This, together with the tagging support allows you to use TagSpaces as a full fledged bookmark manager.

Key Features

Easy File & Folder Tagging

The application supports adding tags with drag and drop to files and folders, in a transparent, not vendor locking way.

Learn more about working with tags

Tag library with colored tags

You can organize your tags thematically in groups, for example the tag group 'family' can contain tags with the names of your family member, useful for photo tagging. In addition you can assign different color to your tags.

Learn more about the tag library

Desktop Search

The application support searching for files in your current location. It can be searched explicitly for a given tag or a combination of tags (all tags, any of the tags or excluding a specific tag).

Learn more about searching

User Interface Themes

Currently TagSpaces supports a light and a dark theme, which can be switched with one click.

Learn more about dark mode

File and Folder Management

TagSpaces features a set of basic file and folder management operations such as create, rename, move and delete.

Learn more about file management

Go further with extensions

The application can be extended with additional viewers and editors for different file types and perspectives for visualizing of folder structures.

Learn more about extensions

Our Products

Liteopen source,
suitable for novice users
freeDownloads for other platforms


  • Tag File and folder
  • Generate thumbnails for photos
  • Basic file management
  • Take notes as files
  • Preview and print files
  • Basic Search
  • Dark mode
  • Web Clipper
Compare all features
Prooptimized for advanced users
by offering additional features

30-Day Money Back GuaranteeDuring the subscription you will receive free update for the application. You can cancel anytime and still use the lastly obtained version for as long as you need.
All the benefits of Lite, plus:
  • Add description to files and folders
  • Add background color to folders
  • Connect AWS S3 buckets as locations
  • Generate persistent thumbnails
  • Monitor changes in your local files
  • Add geo-tags and place files on map
  • View your photo in a gallery mode
  • Advanced and full text search
Compare all features
Enterprisesuitable for medium-sized organizations, offering customizable web interface
price on requestLearn more
All the benefits of Pro Web, plus
  • On-premises wep application
  • PWA mobile app
  • White-label custom packages
  • Custom file viewers
  • Custom perspectives
  • Priority technical support
Compare all features

What people are saying

If you need an alternative to Evernote, check out tagspaces http://t.co/YUhRvssn4X (Open source, no cloud, dropbox/etc support)

— Jürgen Geuter (@tante) January 10, 2015

@tagspaces - finally, a simple elegant cross-platform file tagging solution.

— Jeff Beam (@threecleartones) 22. Oktober 2017

I'm switching from Evernote to @tagspaces + @ownCloud so my data is stored in my own machine.

— Nacho Amelivia (@namelivia) November 20, 2014

Since seeing the STACK of journals and binders I need to scan and thus discovering TagSpaces, I am reluctantly admitting that maybe digitizing all my notes for my book may not be the most horrible idea in the world. Very reluctantly.

— Vixoen 🦋 (@Vixoen) October 21, 2020

@tagspaces Thanks a lot for the development of tagspaces. I am really glad with this piece of software.

— Joep Hein (@joephein) December 11, 2016

Was really trying to find open way of 'doing' Evernote with filesystem. Almost thought of writing my own. Think I've found it: @tagspaces

— Trystan Negus (@trystann) February 2, 2015

Wow. Just found out about the TagSpaces. Very cool stuff - Evernote, bye-bye and thanks for your continued support on Linux/Chrome platforms

— Daniel Vladušič (@dvladar) January 9, 2015

Definitely. TagSpaces also supports storing metadata in per-directory hidden folders, which is probably the best way to go.

— ∰ Jesse (@holocronweaver) 27. August 2017

Help us change the way the world is organizing files. Spread the word!

Reviewed In


  • Ping Du, Akihiro Nakao, Satoshi Miki and Makoto Inoue, “Design and Implementation of 10Gbps Software PPPoE Router for IoT Smart Home Network”, IEICE Transactions, vol.E103-B, No.4, 2020.


  • Akihiro Nakao and Ping Du, “Toward In-Network Deep Machine Learning for Identifying Mobile Applications and Enabling Application Specific Network Slicing”, IEICE Transactions E101-B, No.7, pp.1536-1543, 2018.


  • Ibrahim AFOLABI, Adlen KSENTINI, Miloud BAGAA, Tarik TALEB, Marius CORICI and Akihiro NAKAO, “Towards 5G Network Slicing over Multiple-Domains, ” IEICE Special Issue on Network Softwarization, 2017.
  • Akihiro Nakao and Ping Du, “Application-Specific Slicing for MVNO and Traffic Characterization [Invited]”, IEEE/OSA Journal of Optical Communication and Networking, vol. 9, pp.A256-A262, 2017.
  • Akihiro Nakao, Ping Du, Yoshiaki Kiriha, Fabrizio Granelli, Anteneh Atumo Gebremariam, Tarik Taleb, Miloud Bagaa,”End-to-end Network Slicing for 5G Mobile Networks”, Special Issue of Network and Distributed Processing, Journal of Information Processing Vol. 25 (2017) pp. 153-163


  • Hamid Farhady, HyunYong Lee, Akihiro Nakao, “Software-Defined Networking: A Survey”, Elsevier Computer Networks, Vol.81, p79-95, February 2015.
  • Akihiro Nakao, Ping Du, Takamitsu Iwai. Application Specific Slicing for MVNO through Software-Defined Data Plane Enhancing SDN. IEICE Transactions Vol.98-B. No.11. pp2111-2120. November. 2015


  • Hamid Farhady, Akihiro Nakao, “TagFlow: Efficient Flow classification in SDN”, IEICE Transaction on Communications, Vol.E97-B, No.11, 2014.
  • Hamid Farhady, Akihiro Nakao, “Tag-based Classification for Software- Defined Networking”, The International Journal of Grid and High Performance Computing (IJGHPC), Vol. 7, No. 1, p1-14, 2014.
  • Liang Li, Hamid Farhady, Ping Du, Akihiro Nakao, “Ouroboros: Enabling Protocol Independent Forwarding on Network Processor”, IEICE Transaction on Communications, Vol.E97-B, No.11, 2014.
  • HyunYong Lee and Akihiro Nakao, “Improving Bloom Filter Forwarding Architectures,” IEEE Communications Letters, vol. 18, no.10, pp.1715-1718, Oct. 2014., Vol. 25 (2017) pp. 153-163


  • HyunYong Lee and Akihiro Nakao, “User-assisted In-network Caching in Information-centric Networking,” Elsevier Computer Networks, vol.57, no. 16, pp.3142-3153, Nov. 2013.
  • HyunYong Lee and Akihiro Nakao, “An Approach for Utilizing User Resources in Information-centric Network,” IEICE Transactions on Communications, vol.E96-B, vol.1, pp.48-55, Jan. 2013.
  • HyunYong Lee and Akihiro Nakao, “ISP-driven Delay Insertion for P2P Traffic Localization,” IEICE Transactions on Communications, vol.E96-B, vol.1, pp.40-47, Jan. 2013.

Timing is everything. 2012

  • HyunYong Lee and Akihiro Nakao, “User-assisted Content Distribution in Information-Centric Network,” IEICE Transactions on Communications, vol.E95-B, no.12, pp.3873-3874, Dec. 2012.
  • HyunYong Lee and Akihiro Nakao, “A Feasibility Study of P2P Traffic Localization through Network Delay Insertion,” IEICE Transactions on Communications, vol.E95-B, no.11, pp.3464-3471, Nov. 2012.
  • H. Nakazawa, M. Yoshida, S. Ohzahata, A. Nakao, K. Kawashima, “A Study of File Distribution Control by Search Network Control for Winny Network, ” IEICE TRANSACTIONS on Communications, 2012. (Recommended Paper)
  • HyunYong Lee, Masahiro Yoshida, and Akihiro Nakao, “Caching-based Multi-swarm Collaboration for Improving Content Availability in BitTorrent,” IEICE Transactions on Information and Systems, vol.E95-D, no.5, pp.1446-1453, May. 2012.


  • Ping Du and Akihiro Nakao, “Rethinking Business Model in Cloud Computing: Concept and Example”, IEICE Transactions 94-D, vol. 12, pp.2119-2128, December. 2011.
  • M. Yoshida, S. Ohzahata, K. Kawashima, A. Nakao, “A Content Poisoning Method for Controlling File Distribution in the Share Network, ” IEICE TRANSACTIONS on Communications, vol. J94-B, no. 5, pp. 686–697, 2011. (Recommended Paper)
  • HyunYong Lee, Masahiro Yoshida, and Akihiro Nakao “Understanding of Network Operator-friendly P2P Traffic Control Techniques,” IEICE Transactions on Information and Systems, Vol.E94-D,No.12,pp.2460-2467,Dec. 2011.

Teg Flow Growth Rate Ingan Composition

  • HyunYong Lee, Akihiro Nakao, and JongWon Kim, “BiCo: Network operator-friendly P2P traffic control through bilateral cooperation between network operator and peers”, Elsevier Computer Networks, vol.55, issue 9, pp.2023-2034, 2011.


  • Yuichiro Hei, Akihiro Nakao, Tomohiko Ogishi, Toru Hasegawa, Shu Yamamoto, “AS Alliance for Resilient Communication over the Internet”, IEICE TRANSACTIONS on Communications, vol.E93-B, no. 10, pp. 2706-2714, 2009.
  • Yufeng Wang, Akihiro Nakao, “Poisonedwater: An improved approach for accurate reputation ranking in P2P networks”, Future Generation Computer Systems, vol. 26, issue 8, pp. 1317-1326, 2009.
Tagflow review
  • John Russell Lane, Akihiro Nakao, “On Best-Effort Packet Reordering for Mitigating the Effects of Out-of-Order Delivery on Unmodified TCP”, IEICE TRANSACTIONS on Communications, vol.E93-B, pp. 1095-1103, 2009.
  • Ping Du, Akihiro Nakao, “OverCourt: DDoS mitigation through credit-based traffic segregation and path migration”, Computer Communications, vol. 33, pp. 2164-2175, 2009.
  • Yufeng Wang, Akihiro Nakao, Athanasion V. Vasilakos, Jianhua Ma, “P2P soft security: On evolutionary dynamics of P2P incentive mechanism”, Computer Communications, Special Issue of Computer Communications on Information and Future Communication Security, vol. 34, issue 3, pp. 241-249, 2009.
  • Yufeng Wang, Akihiro Nakao and Jianhua Ma, “A Simple Public-Goods Game Based Incentive Mechanism for Resource Provision in P2P Networks”, UBIQUITOUS INTELLIGENCE AND COMPUTING Lecture Notes in Computer Science, vol. 6406, pp. 352-365, 2009.


  • M. Yoshida, S. Ohzahata, A. Nakao, K. Kawashima, “An Index Poisoning Method for Controlling File Distribution in Winny Network, ” Trans. IPS Japan, vol. 50, no. 8, pp. 2008-2022, 2009.
  • Yufeng Wang, Akihiro Nakao, Athanasios V. Vasilakos, “DoubleFace: robust reputation ranking based on link analysis in P2P networks”, Journal of Cybernetics and Systems, vol. 41, issue 2, pp. 167 – 189, 2009.
  • Yufeng Wang, Akihiro Nakao, “On Cooperative and Efficient Overlay Network Evolution based on Group Selection Pattern”, IEEE Transactions on Systems, Man, and Cybernetics-Part B, vol. 40, no. 3, pp. 493 – 504, 2009.
  • Yufeng Wang, Akihiro Nakao, “Socially-inspired search and ranking in mobile social networking: concepts and challenges”, Journal of Frontiers of Computer Science in China, vol. 3, no. 4, pp. 435-444, 2009.
  • Kurt Tutschku, Akihiro Nakao, “Towards the Engineering of Dependable P2P-Based Network Control — The Case of Timely Routing Control Messages”, IEICE TRANSACTIONS on Communications, vol. E92-B, no. 1, pp. 17-25, 2009.

Tag Flow Layout Android

  • Yufeng Wang, Akihiro Nakao, Jianhua Ma, “SDEC: A P2P Semantic Distance Embedding Based on Virtual Coordinate System”, UBIQUITOUS INTELLIGENCE AND COMPUTING Lecture Notes in Computer Science, vol. 5585, pp. 208-220, 2009.
  • Yufeng Wang, Akihiro Nakao, Jianhua Ma, “SDIPR: A Generic P2P Semantic Distance Inference Approach Based on sPring Relaxation System”, Journal of Internet Technology, vol. 11, no. 2, 2009.
  • Yufeng Wang, Akihiro Nakao, Jianhua Ma, “HopRec: Hop-Based Recommendation Ability Enhanced Reputation Ranking in P2P Networks”, IEICE Transactions on Information and Systems, vol. E93.D, issue 3, pp. 438-447, 2009.
  • Kurt Tutschku, Akihiro Nakao,”Towards the Engineering of Dependable P2P-based Network Control – The Case of Timely Routing Control Messages”, IEICE Transactions, Vol.E92-B,No.01,pp.-, (January 2009)

Tag Flower


  • Akihiro Nakao, Kengo Sasaki, Shu Yamamoto, “A Remedy for Network Operators against Increasing P2P Traffic: Enabling Packet Cache for P2P Applications”, IEICE Transactions on Communications 2008 E91-B(12):3810-3820; doi:10.1093/ietcom/e91-b.12.3810 (2008)

Tag Flowers Instagram

  • Akihiro Nakao, Larry Peterson and Andy Bavier “Constructing End-to-End Paths for Playing Media Objects.” IEEE Computer Networks 38(3)373–389,2002.