What it does
Transcribes speech into time-aligned captions, lets you edit and style them over the playing video, and exports an MP4 with the captions burned into the frames.
What is CaptionFX
What is CaptionFX? An AI caption studio for video creators, in many languages.
CaptionFX is a web-based caption studio. You upload a video, it transcribes the speech into time-aligned captions, you correct and style them over the playing video, and it exports a new MP4 with the captions burned into the frames. It was previously called Klipo.
Short answer
CaptionFX is a web-based caption studio for video creators. It turns speech into editable, time-aligned captions, lets you fix and style every word over the playing video, and exports an MP4 with the captions burned in. It works in English, Hindi, Spanish and many other languages, with Hindi, Hinglish and Indic languages a particular strength, and does captions only.
Last updated
Who it is for
Creators, coaches, educators and podcasters who publish video, in English, Hindi, Spanish and many other languages.
What it is not
Not a scene editor and not a voice tool: no transitions, music, B-roll or auto-zoom, and no dubbing, text-to-speech or voice cloning.
How does CaptionFX work?
You upload an MP4, MOV or WebM. CaptionFX detects the spoken language, or uses the one you name, and transcribes the speech into words with timings. If you ask for another language, it translates the captions a segment at a time rather than word by word.
You then review the draft as editable text over the playing video: correct a word, retime a line, bleep or cut a word, and pick a caption style. Nothing is permanent until you export, and your original upload is never written over. Export renders the captions into the frames and gives you a new MP4.
What was Klipo?
CaptionFX was called Klipo until its rebrand. It is the same product under a new name and address, so older mentions of Klipo refer to CaptionFX. Support goes to captionfx.founder@gmail.com.
How accurate is CaptionFX?
Clean English audio — a decent microphone, one speaker, no music — reaches roughly 95% of words correct. Clean Hindi reaches roughly 85-90%. Code-mixed Hinglish is a reviewable draft rather than finished text. Published benchmarks use studio-quality audio, so a real recording will do somewhat worse, which is why the editor is part of the product rather than an extra.
What does CaptionFX cost?
There is no subscription. Your first eligible project, up to five minutes, exports as a clean MP4 with no watermark. After that you buy credits, and an export costs credits per minute of video. The pricing page works through real examples.
How it works
- Upload a videoMP4, MOV or WebM. Your first project can be captioned, edited and previewed before you pay anything.
- Choose the languageLet CaptionFX detect the spoken language or name it, then pick the caption output: the original language, Hinglish, or a translation.
- Review over the videoFix words, retime lines and bleep or cut single words while the video plays.
- Style the captionsStart from a preset, then adjust type, colour, outline, placement and pacing.
- ExportDownload a new MP4 with the captions burned into the frames.
Questions people ask
What is CaptionFX?
CaptionFX is a web-based caption studio for video creators. It transcribes speech into time-aligned captions, lets you edit and style every word over the playing video, and exports an MP4 with the captions burned in.
Is CaptionFX free?
Your first eligible project, up to five minutes, exports free with no watermark. After that CaptionFX sells one-off credit packs and has no subscription.
Is CaptionFX the same as Klipo?
Yes. Klipo was the earlier name of the same product. CaptionFX is the current name.
Does CaptionFX do dubbing or voice cloning?
No. CaptionFX does captions only. It does not dub, generate speech or clone voices, and it is not a general video editor.
Which languages does CaptionFX support?
It transcribes Hindi, English, Korean, Spanish, French, German, Japanese and Chinese, and translates captions into 12 Indian and 15 global languages. Hindi and Indic-language quality is a particular strength, not the limit.
Do I need to install anything?
No. CaptionFX runs in the browser. You upload a video, work on it online and download the finished MP4.