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For free AI singing voice generation, start with LyricToMelody AI if you want a sung draft from lyrics or MIDI, Applio if you want to convert an existing vocal, or SightSinger if your input is a MusicXML score. These tools solve different jobs: some create sung parts, while others transform audio you already have. The free options below cover both.
How To Choose A Free AI Singing Voice Generator
First decide what you have in hand. Lyrics or MIDI call for a melody and vocal-draft workflow; a recorded guide vocal calls for voice conversion; a written score calls for score-to-vocal synthesis. A cover workflow also needs an instrumental or source recording, depending on the tool. Check each vendor’s current site for unsupported details such as supported file limits, specific voice choices, device requirements, and whether a particular language or style is available.
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For example, a songwriter with lyrics can try a short verse in LyricToMelody AI, then refine the melody before exporting a draft. A creator with a clean guide vocal can upload it to a conversion tool and compare the result with the original timing. A choir leader can start from a MusicXML score in SightSinger and select the part to hear. Those are different workflows; a free voice-conversion plan does not necessarily generate a new melody from text.
| Rank | Tool | Free route established | Best starting material |
|---|---|---|---|
| 1 | LyricToMelody AI | Free Starter plan; 20 credits to start, no card required | Lyrics or MIDI |
| 2 | Applio | Free and open source | Existing audio or a custom voice model |
| 3 | Kits AI | Free plan; 15 conversion minutes monthly, one voice slot, no download minutes | Existing vocal audio |
| 4 | SightSinger | Free plan; 8 credits reset monthly | MusicXML score |
| 5 | UtaiSynthesizer | Free and open source | Local Windows vocal workflow |
| 6 | On4t AI Voice Cover | Free version; premium options are available | Uploaded audio or YouTube URL |
| 7 | Uberduck | Free start is offered; free-plan limits not stated | Text for singing or rapping |
| 8 | TopMediai AI Song Cover | Free AI song cover generator; limits not stated | Audio file or YouTube link |
| 9 | DDSP-SVC | Open-source project described as free software | Existing singing audio |
| 10 | Audimee | Initial 15 conversion minutes are a one-off introduction | Raw vocal recording |
The Best Free AI Singing Voice Generators
1. LyricToMelody AI — Best For Turning Lyrics Into A Vocal Draft
LyricToMelody AI is the clearest starting point when you need a sung idea rather than a cover of existing audio. It generates melodies and sung vocal drafts from lyrics or MIDI, and its site says you can preview a melody with an AI singing voice. The Starter plan begins with 20 credits, requires no card, and retains projects for seven days. The vendor describes it as a web application; check its site for the current credit cost of a specific operation.
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A practical first pass is to enter one verse, listen for a melody that suits the words, and revise the lyric or MIDI before spending more credits. It also supports custom singing-voice training from uploaded or recorded vocals and exports MIDI, audio, and separate stems, but the listed commercial rights are included on paid plans. Get consent for any voice recording you use, and check the vendor’s terms before releasing a generated track.
2. Applio — Best Free Route For Voice Conversion
Applio is a free, open-source voice-conversion suite for converting uploaded audio or working in real time. It supports custom model training and voice blending, plus batch inference, exports, TTS, and CLI automation. Its site lists Windows, macOS, Linux, Colab, and Kaggle, with work possible on your machine or in the cloud.
For a cover experiment, begin with a vocal performance you have permission to use, then convert that audio with an authorized voice model. The project says Applio itself may be used, modified, and redistributed for personal, research, or commercial work; that statement does not establish rights to a trained voice, source recording, or resulting cover. Use authorized training data and check the terms for the model and any material you plan to release.
3. Kits AI — Best Free Browser Starting Point For Vocal Conversion
Kits AI combines voice conversion with cloning, blending, vocal separation, and mastering. Its free plan includes 15 conversion minutes per month, one voice slot, and zero download minutes, so treat it as a way to explore the conversion workflow rather than assume you can export a finished track for free. The product is available on web and Windows, with API access also listed.
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Try a short vocal excerpt first and check the account’s download allowance before building a full song around the result. Kits says it supports instant and professional voice cloning, while stronger cloning tools start with the Starter plan. Its site describes custom voices and outputs as royalty-free, but artist-model outputs may need approval for commercial release. Get consent for cloned voices and read the applicable model and release terms.
4. SightSinger — Best For Singing From A Written Score
SightSinger turns MusicXML scores into AI singing audio and can split SATB parts, with verse and part selection, multitrack playback, iteration, and mixed-audio export. The free plan provides 8 credits that reset monthly; the vendor estimates that as about four minutes of audio or one full song per month. Its supported-language list includes Mandarin Chinese, Cantonese Chinese, Japanese, Thai, English, Spanish, French, Italian, Portuguese, and European Portuguese.
Export a score as MusicXML, choose the voice part you want to check, and use playback to hear whether the line is singable in context. SightSinger does not offer voice cloning, vocal input, or stem export. Its site says AI-voice audio can be used commercially and royalty-free where the selected voice’s terms permit it, so check those terms and obtain consent for any source material you supply.
5. UtaiSynthesizer — Best Free Local Workflow For Windows
UtaiSynthesizer is a free, open-source Windows workstation that combines separation, RVC and SoVITS voice conversion, synthesis, and model training. It supports node workflows and multitrack timeline editing, with exports including WAV, FLAC, MP3, OGG, OPUS, and M4A. Its site describes a dual backend using RVC for speed and SoVITS for quality, with voice blending.
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This suits a creator willing to manage models and process audio locally. The vendor says a personal voice model can be trained from a dozen minutes of singing; do that only with recordings you are authorized to use. Commercial use is restricted across some model weights, so check the terms for the specific weights before publishing or monetizing output.
6. On4t AI Voice Cover — Best For A Quick Free Cover Experiment
On4t AI Voice Cover is a browser-based converter with downloadable generated audio, voice previews, and language, emotion, and pitch controls. It accepts uploaded audio and YouTube URLs and offers multiple algorithms. The vendor describes a free version with premium options but does not state a free usage limit in the provided product details.
Use a short excerpt to compare the available voice and control options before committing to a longer conversion. Its language list includes English, Arabic, Brazilian Portuguese, Chinese, Dutch, French, Hindi, Hungarian, Italian, Japanese, Korean, Polish, Russian, and Turkish. Get permission for the source performance and target voice, and check the vendor’s terms for cover releases and commercial use.
7. Uberduck — Best For Generating Singing Or Rapping From Text
Uberduck explicitly offers speech, singing, and rapping from text, making it a fit when you want to start with words rather than an existing vocal recording. The site invites users to get started for free, but the free-plan limits and specific singing controls are not stated here; check the vendor’s site before planning a full song around it.
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Start with a few lines to see whether the available output suits the phrasing you need, then confirm what the account permits you to export. Uberduck says commercial use is available on any paid plan. Secure permission for any voice you imitate and review the applicable voice and platform terms before sharing a cover or commercial release.
8. TopMediai AI Song Cover — Best For Upload-Based Cover Creation
TopMediai AI Song Cover is presented as a free AI cover generator. Its site says it accepts MP3, WAV, and M4A files or YouTube links, and supports generating covers with custom voice models trained from uploaded raw recordings. Free usage limits and specific export terms are not stated here, so check the vendor’s current site before starting a longer project.
For a controlled trial, upload a brief passage you have rights to use, or provide a recording you made, and follow the model-training steps if you are creating your own voice model. Obtain consent from anyone whose voice appears in training audio, and check the platform’s terms for the model and cover before publication.
9. DDSP-SVC — Best Open-Source Project For Singing Voice Conversion
DDSP-SVC is an open-source singing voice-conversion project intended as free voice-changer software for personal computers. Its project description says its training and synthesis have lower hardware requirements than SO-VITS-SVC and that training can be faster, but it does not establish particular device specifications, supported platforms, or a turnkey beginner workflow.
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This is a better fit if you are comfortable following a software project’s setup instructions. Use only legally obtained, authorized data to train models, as the project itself instructs. Check the project and model terms for your intended use, and get consent for the source voice and any voice represented by a model.
10. Audimee — Best For Trying Vocal Conversion And Harmonies
Audimee converts raw vocal recordings and also lists isolation, pitch editing, stem splitting, custom voice training, and a harmony maker that supports up to five harmony tracks. Its free access is an initial 15 minutes of conversion as a one-off introduction, with 11 royalty-free voices and no custom voice model slots. Starter and Pro plans cap monthly conversion time; the listed paid starting price is $9 per month.
Try a short raw vocal, then explore whether pitch editing or harmonies help the arrangement. Audimee describes its royalty-free voices and cover vocals as copyright-free, but check the platform’s terms for the selected voice and use case. Get consent before training on another person’s voice.
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A free account or open-source program does not by itself settle rights for a recording, a cloned voice, a model, or a cover. The tools above describe different permissions and restrictions, so verify the terms for the specific voice, model, input audio, and plan you use. Do not train on or imitate someone’s voice without authorization, and check the vendor’s terms before releasing the result commercially.
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- Match the tool to the input: lyrics or MIDI, a MusicXML score, or an existing vocal recording.
- Confirm what the free allowance covers, especially credits, conversion time, and downloads.
- Check supported languages, file types, device needs, voice choices, and export behavior on the vendor’s site where the supplied details do not establish them.
- Keep an authorized source recording and note the voice and model terms that apply to your output.
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