DROID (Digital Record Object Identification)

Jump to navigation Jump to search

DROID (Digital Record Object Identification) is a software tool developed to perform automated batch identification of file formats.
License:BSD License
Platforms:Java 6 Standard Edition
Input Formats:PREMIS (Preservation Metadata Implementation Strategies)
Function:File Format Identification,Metadata Extraction
Appears in COW:Creating a SIP from content downloaded from OneDrive (or other Cloud based source), Digital archiving workflow (high-level), LAC Pre-Ingest Workflow, Workflow for ingesting digitized books into a digital archive


DROID (Digital Record Object Identification) is a software tool developed to perform automated batch identification of file formats. DROID is designed to meet the fundamental requirement of any digital repository to be able to identify the precise format of all stored digital objects, and to link that identification to a central registry of technical information about that format and its dependencies.

DROID uses the PRONOM signature files to perform format identification. Like PRONOM, it was developed by the National Archives of the UK. Written in Java, XML.


The format information held in PRONOM is what powers DROID (Digital Record Object Identification). Both are maintained by the UK's National Archives.

DROID downloads the latest signature files from PRONOM, and those are used to drive the identification process. See the PRONOM release notes.

A number of other tools and registries have been based around the PRONOM data. These include:

Although the information and website are made freely available under the Open Government License, the underlying software engine that powers PRONOM is proprietary.

The PRONOM Web API[edit]

The website is oriented towards manual browsing, but note that each PRONOM registry entry as a permalink, like this:


and furthermore, by appending '.xml' to the URL for any entry, the data can be recovered as XML:


User Experiences[edit]

Development Activity[edit]

All development activity is visible on GitHub: http://github.com/digital-preservation/droid/commits

Release Feed[edit]

Below the last 3 release feeds:

2023-03-18 10:11:10
[tag:github.com,2008:Repository/4737996/6.6.1 6.6.1 Release]
by sparkhi
2023-03-13 15:55:16
[tag:github.com,2008:Repository/4737996/droid-6.6.1-rc2 droid-6.6.1-rc2]
by sparkhi
2023-03-09 14:49:36
[tag:github.com,2008:Repository/4737996/6.6.1-rc 6.6.1-rc]
by sparkhi

Activity Feed[edit]

Below the last 5 commits:

2023-04-12 13:37:40
[tag:github.com,2008:Grit::Commit/2f102c3caad9c2b84ab357579c8dc6eaa5d8ea07 build(deps): bump maven-compiler-plugin from 3.10.1 to 3.11.0 (#919)]
by dependabot https://github.com/dependabot
2023-04-11 08:58:42
[tag:github.com,2008:Grit::Commit/d9d16de11b30d312aae9f95a8b2c8dccbbdc7046 For GUI and profile, moved the header writing closer to data writing …]
by sparkhi https://github.com/sparkhi
2023-04-05 17:19:31
[tag:github.com,2008:Grit::Commit/b44b218804c7534387dfd862588ffbaacd4730cd build(deps): bump spring-core from 5.3.20 to 5.3.26 in /droid-parent …]
by dependabot https://github.com/dependabot
2023-03-24 10:00:39
[tag:github.com,2008:Grit::Commit/447f59c5748212024678ec867326acf25a906420 removed uploading to github as it does it for all combinations of OS …]
by sparkhi https://github.com/sparkhi
2023-03-21 11:36:33
[tag:github.com,2008:Grit::Commit/fa18ce7d3ce768ff5f97139fd926d63b57392641 build(deps): bump wiremock-jre8 from 2.33.2 to 2.35.0 (#830)]
by dependabot https://github.com/dependabot

About Formats[edit]

DROID do only read the format itself, not the spesification as such