DDI Tools
There are many tools available to help you work with DDI, from authoring and editing to data transformations and conversions. They've been developed independently by a variety of organizations within the global DDI community: Commercial, governmental, and academic.
How to Submit a Tool
If you have a tool that you would like to share on the DDI Alliance website, please read more about our submission process.
Find a Tool
You can browse the full list of tools below or filter the list according to your needs using the fields below. There are three main categories of tools: Software, software components, and stylesheets.
Name |
Version(s) supported | Availability | Description | Purpose |
|---|---|---|---|---|
| Archivist | 3.2 | In production |
Archivist is a modern web-based questionnaire editor that is capable of importing and exporting... |
Questionnaire editor |
| CED2AR | 2.5 | In production |
CED2AR (pronounced as cedar), or the Comprehensive Extensible Data Documentation and Access... |
Editor, Index/Search, Store |
| Colectica Designer | 1.x, 2.0, 2.1, 2.5, 3.1, 3.2, 3.3 | In production |
Colectica Designer is a visual DDI metadata editor and survey questionnaire designer. It... |
Conversion among DDI, DDI from software, Editor, Index/Search, Questionnaire design |
| Colectica for Excel | 3.1, 3.2, 3.3 | In production |
Colectica for Microsoft Excel is a free tool to document your spreadsheet data using the open... |
DDI from software, Editor, Transformation |
| Colectica Portal | 3.1, 3.2, 3.3 | In production |
Colectica Portal is a web application, powered by Colectica Repository, which enables data and... |
Index/Search, Store |
| Colectica Questionnaires | 3.2, 3.3 | In production |
Colectica Questionnaires is a survey specification creator. Surveys designed with Colectica... |
Questionnaire designer |
| Colectica Repository | 3.1, 3.2, 3.3 | In production |
Colectica Repository is a centralized storage system for managing DDI data resources, enabling... |
Index/Search, Store |
| Colectica Resolver | 3.1, 3.2, 3.3 | Unknown |
Colectica DDI Resolver is a DNS-based resolution service for DDI3 agency identifiers and related... |
Resolution service |
| Colectica Resolver Library | 3.1, 3.2, 3.3 | Unknown |
The Colectica DDI Resolver Library makes it easy to integrate DNS-based data resolution... |
Resolution service |
| DBKfree | 1.x, 2.0, 2.1 | No longer available |
The Data Catalogue (DBK) of the GESIS Data Archive holds study descriptions of all archived... |
Editor, Index/Search, Store |
| DDI 3.0 Core | 3.0 | Unknown |
Recommended elements, formerly DDI Lite |
Conversion among DDI |
| DDI 3.0 Editor-Lite | 3.0 | No longer developed, but still available |
An authoring tool produced by ICPSR that supports the production of DDI 3.0 Instances. It... |
Editor |
| DDI Data Description Statistics Protection Software | 2.0, 2.1, 2.5 | Beta release |
It is a tool which enables easy anonymization processes of DDI standard univariate statistics.... |
DDI aggregated data protection |
| DDI DExT | 2.1, 3.0 | No longer developed, but still available |
Tool to import data and DDI metadata from SPSS files with conversion to ASCII and re-export... |
Editor |
| DDI Index | 2.1 | Unknown |
DDI Index is a Java/Javascript application that provides indexing and searching of XML files... |
Index/Search |
| DDI to DDL | 2.1 | Unknown |
SDA provides an online DDI to DDL Conversion Service. You can upload DDI files from your... |
Crosswalks |
| DDI to HTML Stylesheet | 2.0 | No longer developed, but still available |
A tool to transform and format content of DDI documents as HTML pages. ... |
Transformation |
| DDI Tools Made Available by the SDA Project | 2.1 | In production |
An online analysis system that provides tools to create DDI 2. |
Collection of tools |
| DDI Validator | 2.0, 2.1, 3.1 | Beta release |
Online schema validation of DDI-Lifecycle and DDI-Codebook (2.1) and 2.5 later on. |
Transformation |
| DDI-XSLT | 2.1, 3.1 | Alpha release |
A collection of xslt-stylesheets for DDI for transformation the metadata to other formats.... |
Crosswalks, Transformation |
| DdiEditor | 3.1 | In production |
The DdiEditor is the key tool in a framework of data processing tools and processes composing... |
Editor |
| DDIProfileXSLT | 3.1, 3.2 | In production |
DDI31GenerateProfile.xslt and DDI32GenerateProfile.xslt create a DDI Profile template on the... |
Creates and renders DDI Profiles |
| EpiData Software | 3.1 | In production |
EpiData is a software package which allows data definitions, data documentation , data... |
Editor |
| Mapper | 3.2 | In production |
Mapper is a web-app that provides a user interface to the complex task of connecting ... |
Connecting questions and variables, Applying controlled vocabulary |
| Microdata Cataloging Tool (NADA) | 1.x, 2.0, 2.1, 2.5 | In production |
NADA is a web-based cataloging system that serves as a portal for researchers to browse, search... |
Web-based cataloging system |
| queXML | 2.1 | Unknown |
queXML is a simple XML schema for designing questionnaires. Included are stylesheets to... |
Questionnaire design |
| SledgeHammer | 1.x, 2.0, 2.1, 2.5, 3.1, 3.2 | No longer available |
Turn your data into open data! SledgeHammer is a powerful tool that facilitates the... |
Conversion among DDI, DDI from software, Transformation, Summary Statistics, Open Data Packaging |
| The Questionnaire Design and Development Tool – QDDT v1.0 | 3.2 | In production |
The... |
Questionnaire designer |
| XCONVERT | 2.1 | Unknown |
A tool to convert SAS, SPSS, and Stata data definitions to DDI. The XCONVERT documentation also... |
DDI from software |
| XML Beans for DDI 1/2.x | 1.x, 2.0 | No longer developed, but still available |
Apache XMLBeans packages for DDI 1.0, 1.1, 1.2, 1.2.1, 1.2.2, 1.3, 2.0 and 2.1. XMLBeans is a... |
DDI from software |
| XML Beans for DDI 3.0 | 3.0 | No longer developed, but still available |
Apache XMLBeans packages for DDI 3.0. XMLBeans is a technology for accessing XML by binding it... |
DDI from software |