Free tool

Turn audio into a video you can post

Add your audio and an image, pick a style and a shape, then download an MP4.

Free, no sign upNo watermarkNothing is uploadedWaveform included

Picture

Shape

Add audio to start.

In short

What this tool does

The converter is free and runs in your browser: MP3, WAV or M4A up to 250 MB and 10 minutes becomes an MP4 with a still image or waveform, no sign up, no watermark, and the audio is not uploaded. To make a face speak the audio instead, Percify animates one photo with lip sync at 2 credits a second (a 30 second clip is 60 credits).

Next step

Want a face speaking instead of a waveform?

One photo and this same audio file become a lip synced talking video.

Make it talk

  • One photo of the host

    A sharp, front facing photo. Yours, or one you have the rights to.

  • The audio you already have

    Use the same MP3, WAV or M4A; the mouth, jaw and head move to it.

  • 2 credits a second

    A 30 second clip is 60 credits, and the cost shows before you make it.

Talking photo example: a man in headphones sitting on a sofa at home
How it works

How the converter works

It runs in your browser. Nothing is uploaded.

  1. Step 1

    Add the audio

    MP3, WAV or M4A, up to 250 MB and 10 minutes.

  2. Step 2

    Add an image and pick a style

    A cover or photo with a waveform over it, the image alone, or just the waveform with no image at all.

  3. Step 3

    Choose a shape and download

    9:16 for Reels and Shorts, 1:1 for feeds, 16:9 for YouTube. The video is made on your device.

Good to know

Which style for which post

StyleLooks likeGood for
Image and waveformYour image with a moving waveform near the bottomPodcast clips and song previews
Image onlyA still image for the length of the audioFull episodes and uploads where motion is not needed
Waveform onlyA white waveform on blackQuick audiograms with no artwork
For assistants

Use it from an AI assistant

Every setting is a URL parameter, so an assistant can send a link with the options already chosen.

  • style: both, image, wave (default both). Picture
  • shape: 9:16, 1:1, 16:9 (default 9:16). Shape

A vertical podcast clip with image and waveform: https://percify.io/tool/audio-to-video-converter?style=both&shape=9:16

A YouTube video with a still image: https://percify.io/tool/audio-to-video-converter?style=image&shape=16:9

Every free tool and its parameters, as JSON: percify.io/tools.json. Platform facts checked on 17 September 2026 against each platform’s own help pages.

More free tools

More free tools

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Choose a video, pick a shape and a fit, and download the result. Your file never leaves your device.

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Video to GIF converter

Choose a clip, pick the length, width and frame rate, and download a looping GIF. The file never leaves your device.

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Combine two videos

Add the first and second video, pick the shape of the result, and download one MP4. Different sizes are fitted automatically.

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Questions, answered

How do I convert audio to video for free?

Add the audio file, optionally an image, choose image and waveform, image only or waveform only, pick a shape, and download the MP4. It runs in your browser with no upload.

Can I make a video from an MP3 without an image?

Yes. Choose Waveform only and the video shows a moving white waveform on black for the length of the audio.

What size should an audio video be for Instagram or YouTube?

Choose 9:16 for Reels, Shorts and TikTok, 1:1 for square feed posts, and 16:9 for YouTube. The tool outputs 720 by 1280, 720 by 720 or 1280 by 720.

How long does it take?

Image only videos are quick. Waveforms are drawn frame by frame, so a few minutes of audio can take a few minutes in the browser; keep the tab open.

Is my audio uploaded?

No. It is processed on your device with FFmpeg running in WebAssembly.

Make the host speak on screen

Animate one photo to your audio with lip sync, at 2 credits a second.

Make it talk

Cancel anytime