Democratizing microscopy by introducing innovative Open Source hard and software tools Science lives from the curiosity to get to the bottom of problems and from the subsequent discussion where scientists exchange knowledge and opinions to finally come up with new questions. However as a recent study showed the vast majority of the experiments conducted within publications can often only be replicated partially if at all which contributes to the rising disbelief from society into scientific practice [1]. The high level of exclusivity of scientific experiments is often due to a lack of available instruments and knowledge of their use as well as their high cost makes it impossible for many researchers to replicate their experiments. Particularly in high resolution microscopy which is an essential tool for many different scientific disciplines such as cell biology or biochemistry this is a problem to be solved if we aim for realistic interdisciplinary scientific exchange. With the ever growing open source optical toolbox UC2 ( You.See.Too. ) [2] we show that this is not only important but also possible. With UC2 we are trying to democratize optics and microscopy in particular. To achieve this UC2 relies on widely available components and 3D printed parts so that it can be easily built by anyone anywhere. Through online platforms such as GitHub [3] we enable anyone to use replicate and customize it for individual purposes open source licenses. Additionally we invite users from around the world to share their designs with the community in order to create an iterative and decentralized optimization loop. This way completely new collaborations can be created from the field of education to the realm of cutting edge biology. In the ongoing Corona pandemic we were able to show that state of the art microscopic imaging can be realized even where access to such equipment is very limited but no less urgently necessary. Also we were able to detect and even optically resolve the SARS CoV2 coronavirus in the high safety biological laboratory. The open source nature of UC2 allows connecting with other open projects to unite the expertise of scientists from around the world together with approaching the goal of making cutting edge tools available to all. Additionally scaling up the production of the UC2 components and organizing interdisciplinary workshops we hope to lower the entry barriers to get creative with optics and think science easily “out of the box”.