What Are AutoSubs and SubSlate by Tom Moroney?

AutoSubs and SubSlate are two creator-focused video tools built by Tom Moroney, a software engineer from Dublin. AutoSubs is an open-source, cross-platform desktop app that automatically generates subtitles for videos in any language; SubSlate is a newer video editor he is developing. Both sit outside his full-time work at Workday and reflect a consistent interest in tools that save creators time and make video more accessible.

AutoSubs

AutoSubs is the more established of the two. According to the site, it is:

• Open-source — the code is publicly available.
• Cross-platform — it runs as a desktop application rather than being tied to one operating system.
• Automatic — it generates subtitles for videos without manual transcription.
• Multilingual — it can produce subtitles in any language.

The stated purpose is practical: saving creators time and making videos more engaging and accessible to global audiences. The site describes it as helping "hundreds of thousands of creators," which indicates it is a widely used tool rather than a personal experiment.

Who it is for

AutoSubs targets people who publish video and need captions or subtitles but don't want to transcribe by hand. That includes:

• Creators publishing to platforms where captions improve reach or watch time.
• Anyone distributing video to audiences who speak a different language.
• People who need accessible versions of their videos.

What to expect

Because the site presents AutoSubs as an automatic subtitle generator, the workflow is broadly: bring in a video, let the tool produce subtitles, and get a subtitle output you can use with the video. The site does not document specific menu steps, supported input formats, or export options, so check the project itself for those details before relying on it for a particular format.

SubSlate

SubSlate is described as "a new kind of video editor" and is in development. That is the key condition: it is not presented as a finished, generally available product the way AutoSubs is.

If you are evaluating SubSlate, treat it as an upcoming tool rather than something to adopt for production work today. The site gives no release date, feature list, or platform details, so there is nothing concrete yet to compare against existing editors.

How the two relate

The through-line is creator tooling: AutoSubs solves a specific, time-consuming task (subtitling), while SubSlate aims at the broader editing workflow. Both are separate from Moroney's professional work on backend security and developer tooling at Workday.

Getting in touch or finding out more

The site lists a contact email, [email protected], for anyone who wants to reach out. For AutoSubs specifically, since it is open-source, the project's own repository is the place to confirm current features, supported platforms, and installation steps — the personal site only summarizes it.