Hi, my name is Leandro Vieira Steffen
I use design, communication and technology
to create unique and memorable
user experiences.
Visualization for a data compilation and analysis on the usage of masks by students during the global pandemic in the years 2021 and 2022.
Interactive timelines and maps to visualize time periods and subjects, from geological eras to historical periods and contemporary events. It's a completely re-designed and rewritten version of Gaze Of Time.
Coming soon...
Import data from Wikimedia, Wikipedia and Wikidata and export as JSON files. This is designed to be used in conjunction with an upcoming Timeline and World map visualization app.
A fully on-line custom world-map maker. Editor to generate world chart maps. 87 projections to choose from, various datasets and custom options.
Interactive timelines using more than 50.000 data items from Wikipedia and Wikidata.
Web portal with songbooks and educational games for kids and teachers.
Supported by several governmental institutions.
Web app to extract fragments from a text, such as emails, phone numbers, and custom regular expressions.
World map to visualize most of the language families as they are spoken today.
Presentation for a talk about SASS, the most popular and arguably powerful CSS preprocessor. The presentation itself was made with SASS, back in 2015 or so.
Visualization of Romance languages (languages that come from Latin) and their relationships.
jQuery plugin to detect if we are within a given time range (and possibly display a "We are open" sign).
jQuery plugin to autocomplete text fields synchronously and asynchronously.