List of research software currently developed and maintained by Bernhard Rieder, researcher with the Digital Methods Initiative.

Over the last years, I have been working on quite a number of research tools, mainly for the data driven analysis of social media platforms. My main goal is to gain a deeper understanding of the logics embedded in these platforms and their APIs, but I think that writing research tools is an excellent way to pursue this kind of exploration. Nothing beats first hand experience.

Depending on availability, I am interested in participating in research software development on a freelance basis. If you are looking for consulting and/or programming capacity in the area of data analysis, web APIs, (interactive) visualization or data mining (machine learning, clustering, etc.), drop me a line at

Check out other tools developed by the Digital Methods Initiative here.

These tools are “as is” software, no support is provided. But most tools have basic descriptions or FAQ sections. There are also a number of instruction videos on my YouTube channel. Most of the code is available on github.

High quality bug reports are much appreciated. Please send bug reports to I do not reply to inquiries on other channels. If you are interested in acquiring technical support, please also contact

I develop and maintain these tools in my spare time. There are costs for hardware and hosting. If these tools are useful for you, please consider to

Data Extraction


The Digital Methods Initiative Twitter Capture and Analysis Toolset - developed with Erik Borra and Emile den Tex - provides various ways to retrieve and collect tweets from Twitter and provides a number of modules to analyze tweet collections. Requires server installation.

source code


A tool that extracts data from different sections of the Facebook platform – in particular groups and pages – for research purposes since 2010; due to API and ToS changes, the feature set has changed over the years.

launch tool intro video


A simple tool that gets posts tagged with a specific term and creates tabular statistics and co-tag networks.

launch tool source code

Visual Tagnet Explorer

A simple tool that gets media from Instagram tagged with a specific term or posted around a specific location and creates tabular statistics and co-tag networks. Since Instagram has changed its API regulations, it requires dark magic to make it work.

launch tool source code intro video

YouTube Data Tools

A collection of simple tools for extracting data from the YouTube platform via the YouTube API v3.

launch tool source code intro video



A tool for analyzing textual data stored in timestamped lines of text (e.g. files from Netvizz, DMI-TCAT, etc.). Provides fast text searching and some statistical and visual text analysis. Work in progress. Requires server installation.

source code


A visualization tool for analyzing changes in ordered lists (e.g. rankings) over time.

launch tool source code


Calculates cosine similarity between lists of quantified variables (i.e. feature vectors) and outputs a similarity network.

launch tool source code

Tag Cloud HTML Generator

Input tags and values in wordle format to produce a HTML tag cloud or tag list.

launch tool



A simple PHP script for using Google's Vision API. Takes a comma- or tab-separated file containing a column with image URLs as input, sends images to the Vision API and puts the detected annotations back into the list.

source code


A series of PHP scripts to scrape and analyze pipermail list archives.

source code

Reddit Tools

This is a collection of PHP command line scripts to grab data from Reddit and transform it into CSV files.

source code


Spotify Artist Network

Creates networks of related artists, based on data from Spotify.

launch tool