What is Captioner used for?

Captioner is a browser-based subtitle generator and editor that transcribes video, translates the subtitles and exports files or video with captions added. It is a good fit for subtitling YouTube videos, translating video subtitles for new markets and aligning a prepared script to footage.

Yes. Captioner has a free plan.

Is Captioner open source?

No. Captioner is proprietary (closed-source) software and can't be self-hosted. In the Localization category, open-source options include LibreTranslate, Weblate and Lingo.dev.

What are some alternatives to Captioner?

Captioner competes with Rask AI, HeyGen and ElevenLabs.

Captioner: features, pricing and alternatives

About Captioner

Captioner is a web application for adding subtitles to videos. Users upload a video, the service transcribes it using a Whisper-based speech model with extra processing for precise timestamps, and the result opens in a browser editor where lines, timing and wording can be corrected before export.

The editor supports word-level timestamps, importing an existing transcript and aligning it to the video, and translating subtitles into other languages with a single action. Output can be an SRT or VTT file, for instance for YouTube, or a video with closed or open captions added. The site lists support for videos up to two hours long and for more than 98 languages.

Captioner is a hosted commercial service built by and for content creators, with no self-hosted option. Visitors can sign up and add subtitles to videos for free, and pricing for larger volumes is published on its pricing page. The site also offers documentation and a blog.

Key features

Whisper-based transcription tuned for video
Browser editor for subtitle correction
Word-level timestamps for fine control
Import and align existing transcripts
One-click subtitle translation
Export SRT, VTT or captioned video

Good fit for

→Subtitling YouTube videos
→Translating video subtitles for new markets
→Aligning a prepared script to footage

Tags: subtitles; video-translation; transcription; whisper; srt; captions; localization; saas

Captioner: questions and answers

What is Captioner used for?: Captioner is a browser-based subtitle generator and editor that transcribes video, translates the subtitles and exports files or video with captions added. It is a good fit for subtitling YouTube videos, translating video subtitles for new markets and aligning a prepared script to footage.
Is Captioner free?: Yes. Captioner has a free plan.
Is Captioner open source?: No. Captioner is proprietary (closed-source) software and can't be self-hosted. In the Localization category, open-source options include LibreTranslate, Weblate and Lingo.dev.
What are some alternatives to Captioner?: Captioner competes with Rask AI, HeyGen and ElevenLabs.