DAnIEL (Describing, Analyzing and Integrating fungal Ecology to effectively study the systems of Life) is a web server to analyze fungal communities using the genome marker ITS (Internal transcribed spacer). One can upload one's nucleotide sequences and supplement them with existing projects. Afterward, plots displaying the fungal abundance and diversity of the samples are automatically generated and can be interactively customized. Correlation networks and Machine Learning complete the analysis. Taxa found significant are annotated with a manually curated database to support the biological interpretation.