Accurate AI Video Translator for Every Language

Look for an app that needs no installation, lets you edit subtitles against the video, offers AI voices, exports standard SRT or VTT files and lets others review in the same place.

Smartcat suits teams translating video regularly. For a single personal clip, a simpler captioning tool may be enough.

Smartcat has no free-forever plan. The free trial gives you 15,000 Smartwords for 15 days, with no credit card and nothing to install.

Sign up in the browser, upload a short video and take it all the way to a translated, downloadable file before you decide.

• Sign in to Smartcat in your browser.
• Upload the video and confirm the source language.
• Choose the target languages.
• Review the AI subtitles in the online Subtitle Editor.
• Add an AI voice if you need one, then download the result.

In 2026, 92% of words translated by Smartcat AI for paying customers were accepted without a single human edit.

The app shows every cue next to the video, so the remaining fixes, usually names, acronyms or lines that read too fast, are quick to spot and correct before download.

Smartcat is SOC 2 Type II compliant. Files are encrypted in transit and at rest, workspaces are isolated from other accounts, and role-based access controls who opens each project.

On written request, your content is deleted or returned within 30 days.

Desktop video software with manual subtitling, or an agency that returns files by email. Both take longer and keep work on one machine or in someone's inbox.

One limit of a web app: files must be uploaded, up to 6 GB each, and WebM is not supported, so convert or split very large files first.

No. Smartcat runs in a web browser. Uploading, transcription, the Subtitle Editor, AI voices and downloads all happen online.

You only download the finished files: a video, a video with subtitles, or SRT and VTT subtitle files. That also means no version mismatch between teammates, because everyone works in the same app.

Yes. Projects and files live in your Smartcat account and Drive, not on the computer you started on.

Sign in from any computer with a browser and open the same project, with your subtitle edits, dubbed versions and exports intact. Nothing needs to be copied between machines.

Yes. Invite colleagues, agencies or Marketplace linguists by email or link, and assign them review tasks in the same project.

Plans include unlimited users, and admins control roles, so reviewers see the files they need and nothing else. Feedback lands on the exact cue, not in an email thread.

Yes. Voice previews in the Subtitle Editor do not consume Smartwords. Play a line in different voices, pick the one that fits, and only then generate the dub.

Generating the full dub is metered at 10 Smartwords per source word.

Yes, as long as the file is in a supported format. Phone recordings are usually MOV, MP4 or 3GP, all of which Smartcat accepts.

Upload the file like any other video. The 6 GB per-file limit applies, so very long 4K recordings may need splitting.

Click Download and choose Video, Video with subtitles or Subtitles, then the language version.

A clean video plus an SRT or VTT file keeps captions switchable on YouTube, Vimeo or Wistia; the burned-in version suits platforms that ignore caption files.

It works with the video file, not a link. Upload the file you published, translate it, then add the SRT or VTT output to YouTube as a caption track.

For a dubbed version, download the translated video and publish it as its own upload, or on a channel for that language.