. Vibrotactile feedback is proven to have a beneficial impact on the user experience of interacting with computer systems by making the interaction more enjoyable and improving user performance. Since designing meaningful vibrotactile feedback represents a challenge requiring knowledge and experience in haptics and adjacent disciplines, many developers do not take advantage of it, either by not implementing or by implementing short and constant vibrations. I will present VIREO, a webbased tool for designing personalised vibrotactile patterns using a visual paradigm. VIREO enables flexible specification of vibrotactile patterns with model-based and free sketching, testing the vibrotactile patterns on the fly on wearable devices through a web browser and integrating them into all devices that support Vibration API or compatible APIs. I show the usefulness of VIREO by using it to augment a few demonstrative applications running on a broad range of devices, from smartphones and smartwatches to tabletops and smart environments. VIREO is freely available on the web for researchers and practitioners willing to explore vibrotactile feedback to achieve a better user experience for their applications. This work is part of a project that has received funding from the European Union’s Horizon 2020 research and innovation programme under the Marie Skłodowska-Curie grant agreement No. 860114.