Open source Amazon Polly alternatives
Every project in the catalog is MIT, Apache or BSD licensed. 0 projects explicitly describe themselves as a Amazon Polly alternative; 54 more are in the category where Amazon Polly is a typical product.
Open source projects in the same category: Voice & Text-to-Speech
Category-level information: these projects are the same kind of software as Amazon Polly; they have not claimed to be a one-to-one replacement.
GPT-SoVITS
100RVC-Boss · Voice & Text-to-Speech
Common commercial products in this category: ElevenLabs, Amazon Polly, Google Cloud Text-to-Speech
- You can do instant text reading with a five-second audio sample.
- With one minute of sound data, you can get a higher similarity sound synthesis by training the model.
- You can prepare your own training data set using audio separation and automatic text labeling tools.
- • High number of open issues (906)
Verified against README · Oct 26, 2026 · source
VoxCPM
95OpenBMB · Voice & Text-to-Speech
Common commercial products in this category: ElevenLabs, Amazon Polly, Google Cloud Text-to-Speech
- You can design new sound profiles from scratch using natural language definitions.
- With short reference audio clips, you can clone sound by controlling emotion and tone.
- You can convert texts in 30 different languages into direct speech without specifying a language tag.
- • NeutralGitHub Issue
Voice cutoff at the end of words — Polish language
“**VoxCPM version:** 2.0.2 --- ### Description When generating speech in **Polish**, the voice occasionally cuts off abruptly at the end of a word. The final syllable or consonant is truncated, making the output sound unnatural. This happens with default generation parameters.…”
Verified against README · Oct 26, 2026 · source
RVC
92RVC-Project · Voice & Text-to-Speech
Common commercial products in this category: ElevenLabs, Amazon Polly, Google Cloud Text-to-Speech
- You can easily perform voice and tone conversion operations through the web interface
- With supported hardware and ASIO drivers, you make low-latency real-time audio switching
- You change the tone by blending different model weights with the built-in model merge tool
- • High number of open issues (589)
- • NeutralHacker News
RVC AI Voice on Daw(vst) Plugin
“Sunflower Industries is a VST (AU) plugin for RVC voice conversion for all!, simply load up Path&Index file of your choice and will convert audio file to near-zero letency.”
- • NeutralGitHub Issue
AMD Support - Segmentation Fault
“System: ``` Ubuntu 22.04 LTS Intel i5-12600k 32GB DDR4 AMD Radeon RX 6650 XT ``` Manually installed PyTorch 2.0.1 for rocm. Then installed requirements from requirements.txt. webui boots up without problems but when trying inference or training I get the following message: ```…”
Verified against README · Oct 26, 2026 · source
myshell-ai · Voice & Text-to-Speech
Common commercial products in this category: ElevenLabs, Amazon Polly, Google Cloud Text-to-Speech
- By correctly cloning the reference tone, you produce speech in different languages.
- You control sound style with emotion, accent, rhythm, pause and intonation parameters
- You do zero shot (zero-shot) interlingual audio cloning between languages not found in the training data set
- • Last update over 1 year ago
- • NeutralHacker News
OpenVoice: Versatile Instant Voice Cloning
“> This repository is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License, which prohibits commercial usage. MyShell reserves the ability to detect whether an audio is generated by OpenVoice, no matter whether the watermark is added or not.…”
- • NeutralHacker News
OpenVoice: Instant Voice Cloning
“There's a difference from starting the project by using OpenVoice vs hiring an actor for 90% of the work but then cloning their voice because you can' be bothered to reschedule the same actor for creative changes. But if you start that project by making a voice sound like Morgan…”
Verified against README · Oct 26, 2026 · source
ATH-MaaS · Voice & Text-to-Speech
Common commercial products in this category: ElevenLabs, Amazon Polly, Google Cloud Text-to-Speech
- You automatically create video text, AI visuals, and background music that matches a topic title you give.
- Through the web interface, you configure external AI model providers such as DashScope, OpenAI, and Kling.
- You run the motion transfer module by uploading reference videos and photos.
- • Website is unreachable (checked: 2026-10-31)
Verified against README · Oct 26, 2026 · source
resemble-ai · Voice & Text-to-Speech
Common commercial products in this category: ElevenLabs, Amazon Polly, Google Cloud Text-to-Speech
- You perform audio cloning with multilingual general use or language-specific models.
- Using Turbo and Nano models, you develop low-latency voice assistants.
- By adding paralinguistic labels to the text, you add phrases such as coughing or laughter to the voiceovers.
- • NeutralHacker News
Chatterbox TTS
“(Didn't carefully read your reply. What follows are the results of cat-ing a text file in the CLI. Will give the new textbox a whirl in the morning PDT. A truly heartfelt thanks for helping me work with Chatterbox TTS!) Absolutely blown away. I fed it the first page of Gibson's…”
- ↑ PositiveHacker News
Chatterbox TTS
“> Chatterbox is fantastic. > I created an API wrapper that also makes installation easier (Dockerized as well) Gave your wrapper a try and, wow, I'm blown away by both Chatterbox TTS and your API wrapper. Excuse the rudimentary level of what follows. Was looking for a quick and…”
Verified against README · Oct 26, 2026 · source
DrewThomasson · Voice & Text-to-Speech
Common commercial products in this category: ElevenLabs, Amazon Polly, Google Cloud Text-to-Speech
- You can convert e-book files in different formats into an audiobook format.
- You can perform audio cloning using your own audio file.
- Thanks to the OCR feature, you can translate visual files containing text into audio content.
Speech
100NVIDIA-NeMo · Voice & Text-to-Speech
Common commercial products in this category: ElevenLabs, Amazon Polly, Google Cloud Text-to-Speech
- You can perform automatic Konuşma Tanıma (ASR) streams.
- You can run the multilingual Metin Okuma (TTS) models.
- You can train AI models focused on sound and speech.
- • NeutralHacker News
Whistle: Speech to Text in 16.9 MB
“I find the quality of transcription quite poor with a high error rate. And I'm using an Devine podcast quality microphone. IMHO the error rate is comparable to Dragon Speech of twenty years ago. It seems to me the speech models don't take into account the context of the words in…”
- • NeutralHacker News
Mozilla Common Voice Adds 16 New Languages and 4,600 New Hours of Speech
“This is silly. Common Voice is not adding NVidia-specific features; what would that even look like for a database? There is no comparison to be made between donating resources to an openly licensed database and encouraging developers to optimize their games for proprietary APIs.…”
leon
80leon-ai · Voice & Text-to-Speech
Common commercial products in this category: ElevenLabs, Amazon Polly, Google Cloud Text-to-Speech
- You can complete tasks by working with local and remote AI providers.
- You can manage workflows by choosing between smart, controlled and agent modes.
- You can perform operations using the environmental context and layered memory.
- • No published release
- • NeutralHacker News
Leon Sans, a geometric typeface made with code
“This is fascinating, there is quite a bit of overlap with a font that I started designing recently: I do small projects on CNC machines, and I got annoyed at having to trace both sides of a character, when using the outline of a standard font. In response, I created the…”
- • NeutralHacker News
Leon Sans, a geometric typeface made with code
“Super cool work! Congrats for the birth of baby Leon :-) -- I got interested in typographic animation a while back, there are two related Wikipedia pages: "Motion Graphics" [1] and "Kinetic Typography" [2]. There is not a lot of info describing algorithms to perform Kinetic…”
sherpa-onnx
100k2-fsa · Voice & Text-to-Speech
Common commercial products in this category: ElevenLabs, Amazon Polly, Google Cloud Text-to-Speech
- You can convert voice commands to text in the Çevrimdışı environment.
- You can perform speaker identification and verification on mobile devices.
- You can improve audio quality by clearing background noise from audio files.
- • High number of open issues (638)
neonbjb · Voice & Text-to-Speech
Common commercial products in this category: ElevenLabs, Amazon Polly, Google Cloud Text-to-Speech
- You synthesize sound using the live demo on Hugging Face Space
- Installing the conda or Docker environment on your local computer to run the inference mode
- Clone the project from the GitHub repository and configure the system with python installation script over source code
- • Last update over 1 year ago
- • NeutralGitHub Issue
Finetunining for better Results?
“So I assume, the collab isn't actually finetuning. This makes sense because for some voices I can get close enough for it sounds good. But like let's say my voice. I have no idea why but it keeps making me sound like a Posh British man. Any way to improve the cloning of…”
- • NeutralGitHub Issue
is there any way to make it read longer like 20-30mins?
“I can get 23 seconds out of it but you'd think that it would be possible. Also are the emotional stresses automatic?”
krillinai · Voice & Text-to-Speech
Common commercial products in this category: ElevenLabs, Amazon Polly, Google Cloud Text-to-Speech
- Using visual tools and templates, you create video translation, voiceover, image, and short video script.
- By starting creative or developer tasks in natural language, you manage the processes and agent conversations running in the background.
- Using Codex-based skills and MCP configurations in a local work environment, you maintain your projects.
- • NeutralGitHub Issue
Doc translate
“Doc translate”
- • NeutralGitHub Issue
docker: Error response from daemon: Head " denied
“docker: Error response from daemon: Head " denied”
PaddlePaddle · Voice & Text-to-Speech
Common commercial products in this category: ElevenLabs, Amazon Polly, Google Cloud Text-to-Speech
- You synthesize flowed speech that contains the text front.
- You perform punctuation-specific streaming speech recognition.
- You run speaker verification system and end-to-end speech translation.
VoltAgent · Voice & Text-to-Speech
Common commercial products in this category: ElevenLabs, Amazon Polly, Google Cloud Text-to-Speech
- You develop smart agents that include Zod-type tools, memory, and multistep workflows.
- You set up expert sub-agent teams that direct tasks under supervisor work time.
- At runtime, you enforce security rules with firewalls that confirm input or output.
- ↑ PositiveHacker News
Show HN: Open-Source TypeScript Framework for AI Agents – VoltAgent
“Hi HN, I'm one of the founders of VoltAgent. Over the past months, we've been building it with a simple focus: AI development lacks real-time observability. When you work with agents, it's often a black box. You write some code, run it, and just hope it behaves. If something…”
- • NeutralHacker News
Show HN: Open-Source TypeScript Framework for AI Agents – VoltAgent
“Voltagent’s UI is stunning. Do you have plans to add nocode action types. Sometimes it is easier to start with nocode and switch to coding when necessary.”
Demucs
10facebookresearch · Voice & Text-to-Speech
Common commercial products in this category: ElevenLabs, Amazon Polly, Google Cloud Text-to-Speech
- You separate the vocals, drums, and bass from the music tracks.
- You get instrumental and vocal tracks from the songs separately.
- With the experimental model option, you divide audio recordings into additional resources such as guitars and pianos.
- • Repository is archived (no longer maintained)
- • Last update 2 years ago
- ↑ PositiveHacker News
Demucs Music Source Separation
“This is an AI/ML system by Meta which can separate recorded music into four “stems” - drums, bass, vocals and other. It’s not the first one (Deezer open sourced Spleeter a few years back which is now widely used) but I think the results from Demucs are super impressive - it…”
- • NeutralGitHub Issue
How I use it?
“I tried to install for 5 hours but I never go more far than the first step. I always got this error: 'conda env update -f environment-cpu.yml EnvironmentFileNotFound: '/Users/montserratbartoky/environment-cpu.yml' file not found' A video tutorial is the perfect thing for help us…”
OpenWhispr · Voice & Text-to-Speech
Alternative to (project's own claim): WisprFlow, Granola
Common commercial products in this category: ElevenLabs, Amazon Polly, Google Cloud Text-to-Speech
- Global kısayolla konuşup yazıyı imlecin olduğu herhangi bir uygulamaya otomatik yapıştırabilirsin
- Bir dilde dikte edip metni başka bir dilde yapıştırabilirsin
- Yerel Whisper ve Parakeet modelleriyle çevrimdışı çalışabilirsin
- ↓ NegativeGitHub Issue
LINUX: Local Whisper transcription errror
“**Describe the bug** Record not been able to be transcripted. **To Reproduce** Steps to reproduce the behavior: 1. git pull 2. ELECTRON_DISABLE_SANDBOX=1 npm run dev 3. Download models 4. Start record with hot-key **Expected behavior** Copy in the clipboard of the transcription…”
- • NeutralGitHub Issue
It wont type to forms or streamlabs
“I tried using OpenWhisper to type on forms it wont type it will type on browser when typing a url and in warcraft but it wont on streamlabs chat bot or app or on forms or gemini”
Verified against README · Oct 30, 2026 · source
Amphion
54open-mmlab · Voice & Text-to-Speech
Common commercial products in this category: ElevenLabs, Amazon Polly, Google Cloud Text-to-Speech
- You can perform text-based voice or speech synthesis tasks.
- You can produce high-quality sound signals with different neural vokoder modules.
- You can develop audio conversion and accent exchange applications.
- • Website is unreachable (checked: 2026-10-31)
- • NeutralGitHub Issue
An issue with the preprocessing part of LibriTTS.
“Hello!🤗 When I'm working with the LibriTTS dataset, I noticed that the generated test.json and train.json files do not include the corresponding text for each audio sample. This absence of text information causes an error when trying to extract the phonemes later on.…”
KoljaB · Voice & Text-to-Speech
Common commercial products in this category: ElevenLabs, Amazon Polly, Google Cloud Text-to-Speech
- WebRTC VAD ve Silero VAD ile konuşma başlangıç ve bitişini algılayabilirsin
- Seçebileceğin motorlarla hem son hem de gerçek zamanlı transkripsiyon alabilirsin
- Porcupine veya OpenWakeWord ile uyandırma kelimesiyle etkinleşen asistanlar kurabilirsin
- • NeutralGitHub Issue
Limit realtime transcription time
“Currently if real time transcription continues for a long time then sentence appear to be a huge so it's processing takes a lot of time even with using Cuda. Is that possible to set something like maximum_audio_duration etc to process smaller chunks of text instead of it all?”
- • NeutralGitHub Issue
macOS
“Code: ```from RealtimeSTT import AudioToTextRecorder import ssl ssl._create_default_https_context = ssl._create_unverified_context import torch model, _ = torch.hub.load(repo_or_dir="snakers4/silero-vad", model="silero_vad", verbose=True) if __name__ == '__main__': recorder =…”
Verified against README · Oct 30, 2026 · source
espnet
80espnet · Voice & Text-to-Speech
Common commercial products in this category: ElevenLabs, Amazon Polly, Google Cloud Text-to-Speech
- You can extract from the command line via pre-trained models with a single-line command.
- From data preparation to evaluation, you can run Kaldi style repeatable recipes.
- With training components, you can train deep neural networks using the espnet upload.
lemomo-ai · Voice & Text-to-Speech
Common commercial products in this category: ElevenLabs, Amazon Polly, Google Cloud Text-to-Speech
- You can create code-based short films by selecting one of the ready-made film styles.
- You can edit existing styles or create your own film style from scratch.
- You can install and use the project via the terminal via the Claude Code plugin.