Northwestern University Knight Lab is a community of designers, developers, students, and educators working on experiments designed to push journalism into new spaces. Out of this collaboration have come a suite of tools for creating highly interactive, beautiful representations of data. The suite includes JuxtaposeJS, a tool for juxtaposing changes in two images over time, SoundciteJS, in which audio can be embedded into a paragraph of text, StorymapJS, a clean, annotated map interface for storytelling, and TimelineJS, a timeline creator which beautifully integrates audio-visual data into its interactive format.
MyHistro is an online platform to create and share web-based platforms. It integrates time and geo-data, so that you can show both when and where key events that occurred.
Canva is a very simple, free to use, online infographic creation platform. It has a drag and drop interface and a range of templates that you can adapt. You can upload your own images and choose from a large number of pre-configured layouts.