AI · alternatives · 2026

24 alternatives to Uberduck API

Synthetic voice API

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Uberduck API launched in 2023; newer entries below may have overtaken it.

1
AssemblyAI - Speech-to-Text API▲996
APIs to automatically transcribe and understand audio
2017 · assemblyai.com · its alternatives →
2
api.ai▲299
Build your own Siri. Speech interface for apps and devices.
2014 · its alternatives →
3
Respeecher Marketplace▲394
AI voice library for content creators
2023 · marketplace.respeecher.com · its alternatives →
4
AI Voices by Asyncflow v1.0▲401
Premium AI voice quality without the premium price tag.
2025 · async.com · its alternatives →
5
GPT-3 Custom AI Voices▲220
Combine GPT-3 with custom high quality AI voices
2021 · resemble.ai · its alternatives →
6
Voicejacket (Beta)▲205
AI voices so real you won't believe it
2023 · its alternatives →
7
Chat Data 2.0 With Realtime Voice Rag▲215
24/7 custom AI livechat + realtime voice chatbot
2024 · chat-data.com · its alternatives →
8
Uberduck▲4
a synthetic speech toy
2021 · uberduck.ai · its alternatives →
9
Voxos.ai – An Open-Source Desktop Voice Assistant▲123
Voxos is an open-source desktop voice assistant that aims to put Clippy to shame while supporting new desktop workflows powered by LLMs. Tired of copy and pasting ChatGPT responses between your web browser and IDE? Does your copilot not quite do what you need it to do? I invite you to give Voxos a try and maybe even become a contributor!
2024 · gitlab.com · its alternatives →
10
Audio Transcription API by Scale▲249
Audio transcription API powered by humans and AI
2016 · scale.com · its alternatives →
11SA
Siri-as-a-Service Speech API▲242
2014 · wit.ai · its alternatives →
12
AI Audio Kit▲92
Easy audio transcription from your macOS desktop
2024 · aiaudiokit.pages.dev · its alternatives →
13
I open-sourced my AI toy company that runs on ESP32 and OpenAI realtime▲177
Hi HN! Last year the project I launched here got a lot of good feedback on creating speech to speech AI on the ESP32. Recently I revamped the whole stack, iterated on that feedback and made our project fully open-source—all of the client, hardware, firmware code. This Github repo turns an ESP32-S3 into a realtime AI speech companion using the OpenAI Realtime API, Arduino WebSockets, Deno Edge Functions, and a full-stack web interface. You can talk to your own custom AI character, and it responds instantly. I couldn't find a resource that helped set up a reliable, secure websocket (WSS) AI…
2025 · github.com · its alternatives →
14
AI Rap Song Generator▲104
Create catchy lyrics, rap your stories & share as video
2023 · apps.apple.com · its alternatives →
15
Lemonfox.ai▲133
Human Like AI Voices API – At a Fraction of the Cost.
2025 · lemonfox.ai · its alternatives →
16WB
We built a voice to music AI app in 54 hours at a hackathon▲130
2012 · blog.beatmaticapp.com · its alternatives →
17
SongBot AI Music▲84
The first text-to-vocals music app
2023 · songbot.ai · its alternatives →
18
Voxqube for YouTube creators▲109
AI-generated voice-over with human touch
2023 · voxqube.com · its alternatives →
19
AudioForgeAI▲65
Use AI to Create Music from Text
2024 · its alternatives →
20
AI-Spy▲113
Ai Speech Detection. Listen with Confidence.
2023 · ai-spy.xyz · its alternatives →
21
VoiceBot AI▲43
Your AI assistant for instant audio-to-text transcriptions
2024 · t.me · its alternatives →
22
Labs AI▲93
Turn any text into natural AI voiceovers on iPhone
Jun 2026 · apps.apple.com · its alternatives →
23
SpeechGen.io▲68
Realistic text-to-speech converter powered by AI
2023 · speechgen.io · its alternatives →
24
SongDonkey▲88
Artificial intelligence audio separation, free web app
2021 · songdonkey.ai · its alternatives →

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Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →