How to Clone a Voice with Fish Audio for Free

Fish Audio is a text-to-speech and voice-cloning service that builds a working voice model from as little as 10–30 seconds of clean audio. You upload a sample, name the voice, and then type any text to hear it spoken in that voice. The free tier includes a monthly character allowance (roughly 1 million) and public voice sharing, which is the trade-off for using it at no cost.

Whether you are making a podcast intro, dubbing a short video, or building a voice for a game, the process is the same. You do not need a GPU — Fish Audio runs in the browser, and there is also a Python SDK and API for automation.

What is Fish Audio?

Fish Audio is a speech synthesis platform known for its open models (the Fish Speech series) and a hosted web app. You can use built-in voices from a shared library or clone your own. It supports multiple languages and outputs MP3/WAV for download.

How do you clone a voice in Fish Audio?

1. Create a free account and open the Voices section.
2. Click Create voice and upload a sample — 10 to 30 seconds, no background noise, no music.
3. Give the voice a name and accept the terms (it must be your own voice or one you have permission to use).
4. Wait for processing, usually under a minute.
5. Select the voice, paste your script in the text box, and hit Generate.

Download the result as MP3. A 500-word script typically renders in a few seconds on the hosted service.

What makes a good voice sample?

Clean recording beats length. A quiet room, one speaker, steady pace, and a plain read-through of 20 seconds works better than five noisy minutes. Avoid reverb, music beds, and clipping. If you can, read a passage that covers different sounds rather than one flat sentence.

Is Fish Audio free?

There is a free tier with a monthly character limit — enough for short clips and testing. Cloned voices on free accounts are typically shared publicly. Paid plans remove the cap, keep voices private, and add commercial-use rights. Check the current pricing page, since tiers change; the paid entry point has been around $10–$20 per month.

What are the limitations?

Emotion control is blunter than in studio tools — you get less fine control over whispered or shouted delivery. Long scripts can drift in tone near the end. And cloned voices raise legal issues: cloning someone without consent is not allowed and can be illegal depending on where you live.

Key Takeaways

• Fish Audio clones a voice from 10–30 seconds of clean audio.
• Free tier has a monthly character cap; cloned voices are public unless you pay.
• Sample quality matters more than sample length.
• Available as a web app, Python SDK and API.
• Only clone voices you own or have written permission to use.

Last updated October 2026. More details on the Fish Audio tool page.