Online Auto Subtitle Generator

Generate auto-captioning, and translated subtitles for videos and audios with one click. Translate your subtitles to 70+ languages easily and accurately.

Make videos more accessible for everyone

Research shows that videos with captions on online platforms get significantly more engagement than videos without subtitles. The Hei subtitle generator is the #1 tool for generating original subtitles for your videos as well as translating the original subtitles to other 70+ languages. We support a number of video formats and sizes, for free!
No more wasting time creating manual subtitles for videos and audios!

How to add subtitles to a video online

Upload your video

Upload a video directly to Hei from your computer or paste a link to your video.

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hei.io on iPad
French subtitle
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Select the languages

Choose the original language of the video and the language that you want to translate the video into.

Edit and Export

After the video is processed, go to "Edit your video" and edit the text, and timing of your subtitles. You can choose to display original subtitles, translated subtitles, or both! Then simply click "Sync" and "Download video to have your finalized work!

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captioning generator

Generate subtitles fast and accurately

With our leading AI technology in speech, we will help you generate subtitles for videos within minutes. The subtitles are accurately generated and the translation can be accurate up to 95%.

Get Started

Easy-to-edit subtitles

With Hei subtitle feature, you can easily edit the timing of the subtitles. Change wordings and translated text. The subtitles will be automatically updated. The Download to have the finalized work for your videos.

See our pricing

What's different about Hei

Easy to use

Super easy to create and edit videos. Easily paste the online link of videos to repurpose the content from the internet.

Fast and accurate

It takes minutes to generate subtitles for videos. You don't have to manually add the timing for subtitles.

Online

Hei is cloud-based, which means you can easily get access to the videos wherever you are. You and your team can also easily collaborate by sharing the cloud-based account.

All-in-one Video Editor tool

Simple & Powerful Video Editing

The easiest, most powerful subtitle and voice-over video editor.
Loved and trusted by content creators and video agencies of 100+ brands to reach and engage with audiences better.

hei.io on iPad