  Motivation: Peptides have attracted the attention in this century due to
their remarkable therapeutic properties. Computational tools are being
developed to take advantage of existing information, encapsulating knowledge
and making it available in a simple way for general public use. However, these
are property-specific redundant data systems, and usually do not display the
data in a clear way. In some cases, information download is not even possible.
This data needs to be available in a simple form for drug design and other
biotechnological applications.
  Results: We developed Peptipedia, a user-friendly database and web
application to search, characterise and analyse peptide sequences. Our tool
integrates the information from thirty previously reported databases, making it
the largest repository of peptides with recorded activities so far. Besides, we
implemented a variety of services to increase our tool's usability. The
significant differences of our tools with other existing alternatives becomes a
substantial contribution to develop biotechnological and bioengineering
applications for peptides.
  Availability: Peptipedia is available for non-commercial use as an
open-access software, licensed under the GNU General Public License, version
GPL 3.0. The web platform is publicly available at pesb2.cl/peptipedia. Both
the source code and sample datasets are available in the GitHub repository
https://github.com/CristoferQ/PeptideDatabase.
  Contact: david.medina@cebib.cl, ana.sanchez@ing.uchile.cl
