Local Text-to-Speech and Audiobook Makers

Kokoro-FastAPI runs the Kokoro-82M speech model on your own machine or server and exposes an OpenAI-compatible speech API. It's for developers adding local text-to-speech to assistants, reading apps or audiobook workflows. Speech generation runs locally, and the API doesn't require an OpenAI account.

pyVideoTrans translates spoken audio into another language and produces a video with translated subtitles and AI dubbing. It's for people adapting videos for audiences in other languages who want control over which parts run locally. It recognizes speech directly, so the original video doesn't need subtitles.

Kokoro is a text-to-speech model and inference library for developers who want to generate speech on their own hardware or servers. Its compact Kokoro-82M model suits personal projects and production applications, with Apache 2.0 licensing for both the library and model weights.

PocketPal AI is an open source assistant for people who want to run language models on a phone or tablet. It works on iOS, iPadOS and Android. Once you've downloaded a model, you can chat offline without an account, and your prompts, replies and documents stay on your device. The app is licensed under MIT.

SillyTavern is a locally installed LLM frontend for AI hobbyists who want detailed control over character chats and prompts. It builds on TavernAI as an independently developed fork and brings text models, image generation and voice into one interface. It's open source under AGPL-3.0.

ebook2audiobook turns non-DRM ebooks into narrated audio with chapters and metadata, for readers who want audio editions of their own books. It runs locally on Windows, macOS and Linux, with Docker support and a browser interface built with Gradio. It's open source under Apache 2.0.

Lemonade is an open source local AI server for people who want to use models on their own hardware or connect them to apps and agents. It handles chat, coding, image generation, speech, transcription, and embeddings. A built-in interface lets you use those capabilities directly, while its server makes them available to other software.

Audiblez turns EPUB e-books into M4B audiobooks using Kokoro-82M text-to-speech on your own computer. It's for readers who want spoken versions of their books and control over the narrator, reading speed and sections included. The app is open source under the MIT license.

Speaches is a self-hosted speech server for developers who want transcription, translation and speech generation on their own hardware. Its OpenAI-compatible API lets applications use local speech models through tools and SDKs built for OpenAI's API. The project is open source under the MIT license.

Xinference serves language, speech and multimodal models through a shared API on your own computer or servers. It's an open source platform under Apache 2.0 for developers and researchers who want to build applications around models they host. You can also deploy it on cloud infrastructure.

Applio is a local AI voice conversion suite for musicians making AI covers, streamers changing their voice live, and creators working with speech. It converts recordings or microphone input into another voice using community models or models you train yourself. Its software uses the MIT license.

Chatterbox TTS Server runs Resemble AI's speech models on your own computer or server, with a browser interface and an OpenAI-compatible API. It's for people producing narration and audiobooks, or developers adding speech to voice agents and other apps. The project is open source under the MIT license.

Speech Note combines offline dictation, reading aloud and translation in a desktop app for Linux and Sailfish OS. It's for people who want to take multilingual notes, type by voice or listen to text without sending their words to a cloud service. Speech and text processing stay on your device; models are downloaded separately through the app's graphical browser.

Coqui TTS (idiap fork) is a local text-to-speech library for developers and speech researchers who want pretrained voices or tools to train their own models. It builds on coqui-ai/TTS, continuing the original unmaintained project. The Python toolkit is open source under the Mozilla Public License 2.0 (MPL-2.0).

Podcastfy turns documents, websites and images into AI-generated audio conversations, with the option to write transcripts using a local LLM. It's an open-source Python alternative to NotebookLM's podcast feature for creators, educators and researchers who want control over the conversation format or need podcast generation inside their own software. It uses the Apache License 2.0.

Subtitle Edit is an MIT-licensed subtitle editor for Windows, macOS and Linux. It's for people creating captions, translating dialogue or fixing subtitles that don't match the video. Its core editing, conversion and video playback work offline on your device, with optional AI tools for transcription and translation.