Siegfried

A PRONOM based, command line, file format identification tool using Aho Corasick matching and no buffer limits.
Homepage:	http://www.itforarchivists.com/siegfried
License:	Apache License 2.0
Function:	File Format Identification

Description

Siegried is a file format identification tool that, like DROID and Fido, is based on PRONOM. However, it uses a different pattern matching algorithm that offers different strengths and weaknesses to those other PRONOM based tools. A detailed description of the tool and why it was created can be found in this blog post. Besides, there is a more detailed description in terms of functionality on the Github Page of Siegfried.

Siegfried was first publicly released the 28th february 2014 in version 0.1.

User Experiences

• ZBW:
  • The command line tool is very easy to handle.
    The default output is yaml. This can be changed to csv or json.
    • Usual command: sf file.ext (will output in yaml)
    • Change output to csv: sf -csv file.ext
    • Change output to json: sf -json file.ext
  • It is also possible to save the output in an external file:
    • sf file.ext >output.yml
    • sf -csv file.ext >output.csv
    • sf -json file.ext >output.json

Development Activity

All development activity is visible on GitHub: http://github.com/richardlehane/siegfried/commits

Release Feed

Below the last 3 release feeds:

2026-07-12 09:11:43

[tag:github.com,2008:Repository/17277958/v1.11.6 Version 1.11.6]

by github-actions[bot]

2026-07-11 03:31:39

[tag:github.com,2008:Repository/17277958/v1.11.5 Version 1.11.5]

by richardlehane

2026-07-11 03:12:36

[tag:github.com,2008:Repository/17277958/v1.11.5b v1.11.5b]

by richardlehane

Activity Feed

Below the last 5 commits:

2026-09-08 09:36:43

[tag:github.com,2008:Grit::Commit/728cd4012b2da10d4455112eb285f3b450d56188 update PRONOM URL]

by richardlehane https://github.com/richardlehane

2026-07-26 08:22:11

[tag:github.com,2008:Grit::Commit/acc133a326807bceac4a47accc15fcb7d831f254 remove bench workflow]

by richardlehane https://github.com/richardlehane

2026-07-12 09:06:24

[tag:github.com,2008:Grit::Commit/f1ee502e0774dcf3b191b2c552333a32fc98fdd9 updates go toolchain]

by richardlehane https://github.com/richardlehane

2026-07-12 08:58:30

[tag:github.com,2008:Grit::Commit/e6c807f8ef6b1e89485a34e268ff313bf5af9875 Merge pull request #290 from sevein/dev/update-release-pipeline]

by richardlehane https://github.com/richardlehane

2026-07-12 06:02:32

[tag:github.com,2008:Grit::Commit/754c70be40abfef705fea22604ebb406ca50af71 Separate Go minimum and release versions]

by sevein https://github.com/sevein