Timeliner– create timelines and timemaps using Google Spreadsheets (this tool is also available under the name TimeMapper – it is somewhat unclear as to the difference between Timeliner and TimeMapper)
Timeline.js – an open-source tool that enables you to build visually-rich interactive timelines (hosted version)
Timeline.js (JavaScript framework hosted on GitHub)
Recline.js – A simple but powerful library for building data applications in pure Javascript and HTML.
Viewshare – a free platform for generating and customizing views (interactive maps, timelines, facets, tag clouds) that allow users to experience digital collections
Timetoast – create timelines and share them on the web
Timemap – Javascript library to help use online maps, including Google, OpenLayers, and Bing, with a SIMILE timeline. The library allows you to load one or more datasets in JSON, KML, or GeoRSS onto both a map and a timeline simultaneously.
MyHistro – Hosted tool to create timelines (requires signup for a free account)
Geospatial Visualization
GeoCommons – A public community and set of tools to access, visualize and analyze data with compelling map visualizations.
Kartograph – A simple and lightweight framework for creating beautiful, interactive vector maps
Leaflet – A lightweight JavaScript library for making tile-based interactive maps for desktop and mobile browsers.
Mapbox – A web platform for hosting custom designed map tiles and a set of open source tools to produce them.
Modest Maps – a small, extensible, and free library for designers and developers who want to use interactive maps in their own projects.
Viewshare – a free platform for generating and customizing views (interactive maps, timelines, facets, tag clouds) that allow users to experience digital collections
Google Fusion Tables – A web application that makes it easy to host, manage, collaborate on, visualize, and publish data tables
WorldMap – low barrier open source platform to explore, visualize, edit, collaborate with, and publish geospatial information.
Ushahidi – online platform to collect and display information geospatially
Timemap.js – Javascript library to help use online maps, including Google, OpenLayers, and Bing, with a SIMILE timeline. The library allows you to load one or more datasets in JSON, KML, or GeoRSS onto both a map and a timeline simultaneously.
Viewshare – a free platform for generating and customizing views (interactive maps, timelines, facets, tag clouds) that allow users to experience digital collections
Google Fusion Tables – A web application that makes it easy to host, manage, collaborate on, visualize, and publish data tables
Highcharts – charting library written in pure HTML5/JavaScript, offering intuitive, interactive charts to your web site or web application
DataWrangler – interactive tool for data cleaning and transformation
OpenRefine – desktop tool for cleaning and transforming data
Miso Dataset – JavaScript client-side data transformation and management library. Dataset makes managing client-side data easy by handling loading, parsing, sorting, querying & manipulating data from all sorts of sources.
Mr. Data Converter – web application that converts Excel data into one of several web-friendly formats, including HTML, JSON and XML
Data Science Toolkit – Variety of data tools including street addresses to coordinates, file to text, coordinates to political areas, geographic names (countries, city, region) to coordinates, IP address to coordinates, HTML to text, text to people, etc.
JSONView – a Firefox extension that helps you view JSON documents in the browser.
dataset-tracking – plugin for the Mantis (http://www.mantisbt.org/) issue-tracker designed to support work-flows around “data publication” in research settings. The plugin enables editors to use Mantis’s issue-tracking features to coordinate work on cleaning datasets, aligning datasets to appropriate standards, and documenting datasets for publication.
csvkit – a suite of powertools for working with Comma-separated values (CSV) files (command-line based)
DataUp – An open source tool helping researchers document, manage, and archive their tabular data, DataUp operates within the scientist’s workflow and integrates with Microsoft® Excel.
GeoJSONLint – site to validate and view your GeoJSON
X-Ray Googles – browser tool to inspect and manipulate the code behind any web page
Mozilla Thimble – tool to write and edit HTML and CSS right in your browser. Instantly preview your work. Then host and share your finished pages with a single click.
Sneakpeekit – free PDF sketch sheets and grid templates for various settings
iconmonstr – free simple icons for your next project
Entypo Pictogram Suite – a set of 250+ carefully crafted pictograms. The package contains an icon font — OpenType, TrueType and @font-face — EPS, PDF and PSD files. All released for free under the license CC BY-SA 3.0.
Divshot – Bootstrap-based mockup interface builder for Web apps
Gemicon – handcrafted icon set (600 icons in sizes 16, 32, 64px)