Free AI Voice Generator: I Cloned My Voice Without ElevenLabs
Short answer: Voicebox is a free, open-source AI voice generator that clones your voice entirely on your own computer — no account, no upload, no subscription. Here's what actually happened when I installed it, the one thing that tripped me up, and why "runs locally" matters a lot more than it sounds.
Every time you clone your voice on one of the big paid apps, that recording doesn't stay on your computer — it goes to their server. And your voice isn't just a voice. Banks use voice recognition to confirm it's really you. So do some phone systems and security lines. So here's the question I couldn't stop thinking about: what actually happens to that recording after you close the tab? This is the tool that made that question irrelevant for me, because the honest answer became "nothing, because it never left my computer."
The problem with the popular option
If you've looked into AI voice cloning at all, you already know the name everyone throws around: ElevenLabs. It's good. It's also not free past a small trial, and it's not local — your voice sample goes up to their servers to get processed. That's a completely reasonable trade for a lot of people, and I'm not here to tell you it's evil. I'm here to tell you there's a free, open-source alternative that skips that trade-off entirely, and I didn't believe it was actually good until I tried it myself. It's called Voicebox — fully open-source, MIT license, meaning the code is public and it can't quietly turn into a paid product on you later.
What Voicebox actually is
Voicebox runs entirely on your own computer — Mac, Windows, or Linux. No account, no login, no cloud processing. Whatever audio you feed it stays on your machine. Under the hood it gives you seven different voice engines to choose from, which sounds technical, but here's what actually matters: some of them are built for cloning your own voice from a short sample, and a couple are locked to their own preset voices only. I mixed that up myself the first time, so I'll save you the confusion below.
Why "runs locally" matters more than it sounds
Beyond privacy as a buzzword: your voice is biometric data. It's used for identity verification in places you'd never think about — banking apps, call center security questions, some two-factor systems. Every time you upload a clean sample of your voice to a company's server, you're trusting that server, forever, with something you can't ever change if it leaks. You can reset a password. You can't reset your voice. That's not a reason to be paranoid about every app — it's a reason to prefer the option where the sample never leaves your computer in the first place, when that option exists and is just as good.
How I actually cloned a voice
No cuts, no editing tricks — this is exactly what happened, in order:
- Open Voicebox, hit Create Voice, then choose Clone from audio instead of the built-in preset voices.
- Upload a short reference clip. A few seconds is genuinely enough — it doesn't need studio quality, just clean audio with no background noise or clipping.
- Type the exact words spoken in that clip as the reference text, give the profile a name, and hit Create Profile.
- Here's the snag: the voice I'd just cloned showed up greyed out. Turns out not every engine supports a cloned voice — the default one only does its own preset voices.
- Switch the engine to one built for cloning (Chatterbox is a solid default), and the profile lights right back up, selectable.
- Type a sentence, hit generate — and that's it. That's my voice, cloned, running on my own laptop, nothing uploaded anywhere.
The honest caveats
I'm not going to pretend this is flawless, because that's exactly the kind of review that makes people stop trusting reviews. First run, it had to download the voice model — a few gigabytes — so budget a few minutes before your first clone, not seconds. Quality depends a bit on your computer's hardware: heavier engines want a decent graphics card to run fast, lighter ones don't. And if your reference clip has noise or clipping in it, the clone picks that up too — garbage in, garbage out, same as anything. None of that changes the bottom line for me: free, private, and good enough that I'm using it for real narration, not just a demo.
A few extras worth knowing about
It can generate speech in over twenty languages, it's got a dictation mode that types out spoken words as text, and it can plug directly into AI coding assistants so they can literally talk back to you in a voice you cloned. I'm not using most of that yet, but it's there if you go looking.
See the full AI method in the No-Nonsense Guide →This is genuinely the tool I'm now using for every narration I put out — free or cheap tools that quietly do what the expensive one does are the whole theme of everything I write here, and this is one of the clearest examples I've run into yet.
FAQ: free AI voice generators
What is the best free AI voice generator?
Voicebox is a genuinely free, open-source (MIT license) AI voice generator that runs entirely on your own computer instead of uploading your voice to a company's server. It supports voice cloning from a short audio sample on several of its built-in engines, and speech generation in over twenty languages.
Is there a free alternative to ElevenLabs?
Yes. ElevenLabs is a strong paid, cloud-based option, but Voicebox is a free, open-source alternative that runs locally, so your voice sample never leaves your computer. It's not sponsored, it's not selling anything, and there's no subscription past the download.
Is it safe to clone your own voice with an AI tool?
Voice is biometric data — it's used for identity verification in places like banking apps and phone security lines, and unlike a password, you can't reset it if a sample leaks. A tool that never uploads your sample anywhere, like Voicebox, removes that specific risk entirely, since there's no server to trust with it in the first place.
Do I need a powerful computer to clone a voice locally?
It helps but isn't required. Heavier voice-cloning engines run faster with a decent graphics card; lighter ones don't need one. The first time you use a given engine it also has to download its model, which can be a few gigabytes, so budget a few minutes before your very first clone.
Why did my cloned voice profile show up greyed out?
Not every voice engine supports cloned voices. Some engines only work with their own built-in preset voices, so a freshly cloned profile appears selectable only after you switch to an engine that actually supports cloning.
Voicebox is completely free with no affiliate link — I don't make anything if you use it, I just think it's a genuinely good find. If you want the fuller method behind everything I build and publish, that's what the guide below is for.
Get the No-Nonsense Guide →Keep reading
More from our channels
Jairo Oliva Jofer
Digital nomad. Brazilian living in Serbia. Jairo writes honest, no-fluff guides on earning real income online with AI — not for the money itself, but to help you afford the essentials of a rich, enriching life: travel, cooking, music, and art. No luck required, just a method that works. See all guides →