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tus – resumable file uploads

People are sharing more and more photos and videos every day. Mobile networks remain fragile however. Platform APIs are also often a mess and every project builds its own file uploader. There are a thousand one-week projects that barely work, when all we need is one real project. One project done right.

We are the ones who are going to do this right. Our aim is to solve the problem of unreliable file uploads once and for all. tus is a new open protocol for resumable uploads built on HTTP. It offers simple, cheap and reusable stacks for clients and servers. It supports any language, any platform and any network.

It may seem to be an impossible dream. Perhaps that is because no-one has managed to solve it yet. Still, we are confident and we are going to give it our best shot. Join us on GitHub and help us make the world a better place. Say "No!" to lost cat videos! Say "Yes!" to tus!


Built as a layer on top of the popular HTTP protocol, tus can easily be integrated into applications using existing libraries, proxies and firewalls, and can be used directly from any website.


tus is ready for use in production. It has undergone numerous rounds of improvements and received valuable feedback from people working at Vimeo, Google and multiple other well-known companies.

Open source

tus is brought to you by the people behind Transloadit logo Transloadit but the source code to all of our implementations, this website and even the protocol itself is accessible to everyone under MIT license, directly from our GitHub organization.

Minimalistic design…

The specification only requires a very small set of features to be implemented by clients and servers. tus embraces simplicity, fast development and iteration speed for everyone.

…yet still extensible

tus nevertheless features a sizable list of extensions that introduce additional functionality, such as parallel uploading or checksums and expiration. All of these may be implemented according to your preferences.


We believe in an open and accessible evolution of this protocol. At any stage since the beginning of tus, feedback has been appreciated and integrated. We look forward to your contributions as well.

Say Hello 👋

We are still actively improving the protocol and all of its implementations. We welcome your involvement and are happy to answer any question!

Official implementations

Additionally, there are many other projects built and maintained by our community.

Blog posts

Who is using tus?

Do you also (plan to) use tus? Add your company

tus on GitHub

  1. Avatar of Acconut

    Acconut pushed 1 commit to tus/tus.io

  2. Avatar of Acconut

    Acconut closed pull request Bump tar from 6.1.14 to 6.2.1 for tus/tus.io

  3. Avatar of dependabot

    dependabot opened pull request Bump tar from 6.1.14 to 6.2.1 for tus/tus.io

  4. Avatar of dependabot

    dependabot created a new branch in tus/tus.io: dependabot/npm_and_yarn/tar-6.2.1

  5. Avatar of SOVLOOKUP

    SOVLOOKUP is now watching tus/tus-node-server

  6. Avatar of russoj88

    russoj88 is now watching tus/tusd

  7. Avatar of menuRivera

    menuRivera is now watching tus/tus-js-client

  8. Avatar of CoYdisk

    CoYdisk is now watching tus/tusd

  9. Avatar of CoYdisk

    CoYdisk is now watching tus/tus-resumable-upload-protocol

  10. Avatar of bfrederix

    bfrederix commented on using tusd handler with gorilla mux causing "NetworkControlError" warnings in tus/tusd

  11. Avatar of amiremohamadi

    amiremohamadi opened pull request plugin: Fix json log format for tus/tusd

  12. Avatar of amiremohamadi

    amiremohamadi forked tus/tusd

  13. Avatar of Yobol

    Yobol is now watching tus/tus-js-client

  14. Avatar of Acconut

    Acconut commented on NetworkControlError/NetworkTimeoutError "feature not supported" in logs in tus/tusd

  15. Avatar of znipps

    znipps is now watching tus/tusd

  16. Avatar of bfrederix

    bfrederix opened issue NetworkControlError/NetworkTimeoutError "feature not supported" in logs on on tus/tusd

  17. Avatar of namandureja

    namandureja opened issue Given nginx configuration slows down uploads over https on on tus/tusd

  18. Avatar of alirezaafkar

    alirezaafkar is now watching tus/tus-android-client

  19. Avatar of YebinLeee

    YebinLeee is now watching tus/tus-node-server

  20. Avatar of YebinLeee

    YebinLeee is now watching tus/tus-resumable-upload-protocol

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