Uberduck

Uberduck turns text into speech, singing, and rapping, adds voice cloning and speech to speech conversion, and includes a music generator that builds full tracks with vocals in 70+ languages. Built for musicians, marketers, agencies, and creators, with API access for embedding synthetic vocals in products.

Uberduck is a synthetic voice platform built around one idea: text should be able to become speech, singing, or rapping without a recording booth. The homepage leans on "Industry Leading Accuracy" and markets the output as realistic, expressive synthetic vocals aimed at agencies, musicians, marketers, and creators. The core text to speech engine accepts up to 350 characters per generation and offers a long roster of named voices (Abbi, Aria, Aisha Patel, Sarah Chen, Quackmaster and many more) alongside technical voice IDs such as en-US-Neural2-A and en-AU-Wavenet-B, so the library mixes friendly presets with granular, region-specific options. Beyond straight narration, Uberduck offers voice cloning for building custom voices that can then speak, sing, or rap, and speech to speech conversion that rewrites an existing recording into another voice while keeping the original delivery style. A separate music generation model produces full tracks with lyrics and vocals from a text idea, pitched for video game soundtracks, brand jingles, podcast intros, birthday greetings, YouTube beds, and social promos. Coverage is broad: the site advertises 70+ languages with dedicated landing pages for Afrikaans through Zulu, and hundreds of musical styles. Practically, the workflow suits short-form work. A marketer drafts a script, picks a voice and language, and downloads the clip; a musician sketches a hook and lets the model handle the vocal. Teams that need to embed audio in products can use the API for text to speech, text to singing, text to rapping, and voice conversion rather than clicking through the web app. The trade-offs are worth noting before committing. The 350 character limit per text to speech run means long narration has to be chunked and stitched. Commercial use is tied to paid plans, so free experimentation does not transfer to client work. And because the voice list includes celebrity-adjacent and character-style presets, users carry the responsibility for rights and likeness clearance. Compared with single-purpose TTS services, Uberduck is wider but less specialised: it wins on singing, rapping, and music generation, while a dedicated narration tool may fit long-form audiobooks better.