Free tool: Captions and audio

AI voiceover generator

Paste a script, pick a voice and download a natural-sounding voiceover as WAV, generated on your device with an open-weight text-to-speech model.

Runs entirely in your browser. Your file is never uploaded: the open-source model is downloaded once to your device and does the work locally. No signup needed.

70/1000

How to use it

  1. 1Paste your script (up to 1,000 characters).
  2. 2Choose a voice and press Generate. The first run downloads the voice model.
  3. 3Play it back and download the WAV file.

About this ai voiceover generator

Faceless videos, product demos and explainers all need a clean voiceover. This tool uses a compact open-weight speech model with 82 million parameters, released under the Apache 2.0 license, running locally in your browser. There is no character quota and no watermark.

Pick from American and British English voices, paste up to 1,000 characters at a time and download the WAV file to drop into Premiere, DaVinci Resolve or any mobile editor. Short sentences and punctuation give the most natural pacing.

The first run downloads the model (about 90 MB) and caches it. Generation speed depends on your device; WebGPU-capable browsers such as recent Chrome and Edge are fastest.

Frequently asked questions

Can I use the voiceover commercially?
The model weights are released under Apache 2.0, which permits commercial use. Make sure the script itself is yours to use.
Is there a character limit?
Each generation takes up to 1,000 characters so it stays fast in the browser. For longer scripts, generate paragraph by paragraph.
Which languages are supported?
This tool offers American and British English voices, which are the model's strongest.
Can Menivor add the voiceover to a finished video?
Yes. Menivor writes the script, voices it, adds footage and burns in word-by-word captions, then gives you a ready-to-post MP4.

More free tools

TikTok script generatorTurn a topic into a short-form video script with a hook, three to five beats with on-screen visual ideas, and a call to action, sized to 15, 30 or 60 seconds.Subtitle generatorDrop in a video or audio clipTikTok hook generatorDescribe your video in one line

Guides and video makers

Faceless video generatorHow to make a faceless TikTok accountAI explainer video generator

See all free video tools.

Skip the busywork: get finished videos

Paste a link or type a topic. Menivor writes the hook and script, records the voiceover, adds footage and word-by-word captions, and renders ready-to-post vertical videos in 1080 x 1920.

See pricing