Open Source Voip

Open Voice OS is an open-source, community-driven voice AI platform for building customizable assistants across Raspberry Pi, embedded devices, Linux desktops, and Docker. It provides plugin-based STT/TTS, configurable wake words, extensible skills, and privacy-focused self-hosting.

OSS Chat delivers a single chat interface that connects users to open‑source project resources—docs, issue trackers, papers, and community Q&A. It uses ChatGPT and a vector database to provide quick, privacy‑compliant access to up‑to‑date knowledge across diverse tech domains.

Voice.ai offers cloud‑and on‑prem AI voice agents for calls, scheduling, and queries, supporting 15+ languages. It provides text‑to‑speech, 10‑second voice cloning, real‑time voice change, noise filtering, and integrates with Salesforce, HubSpot, Zendesk, Slack. APIs and SDKs enable scalable deploym

DeepSeek-V3 is an advanced AI model offering leading performance in open source LLM, enhanced speed, and global language support. It sets new benchmarks for inference speed among open-source models.

OpenCode.ai is an open-source AI coding agent that runs directly in your terminal, IDE, or desktop. It connects to 75+ LLM providers, supports offline use, and enables multi-session collaboration for code review and debugging.

Krisp delivers real‑time noise cancellation, accent conversion, and multilingual voice translation for meetings and call centers. It records calls, transcribes, and summarizes, syncing to CRMs. Developers can embed its voice SDK into custom applications.

Simple Phones automates inbound call answering with customizable AI voice agents, supports outbound outreach, logs interactions, offers routing and notifications, multilingual voices, web‑crawled knowledge base expansion, and integrates with CRMs and automation tools.

Openwhispr is an open-source AI voice dictation tool that converts speech to text locally, ensuring privacy. It features instant transcription, customizable settings, and API integration, enhancing productivity for coding, writing, and brainstorming across various applications.

Callin.io delivers sub‑176 ms AI voice agents that can be white‑labelled, deployed on a custom domain without coding, and offer 99.9 % uptime, carrier‑grade redundancy, GDPR/CCPA compliance, encryption, multi‑carrier support, and pre‑built CRM/ITSM connectors.

Quo is a business phone system that centralizes calls, SMS, voicemails, recordings, and contact history into shared inboxes. Sona AI handles 24/7 call answering, qualification and routing, with automated tagging, summaries, CRM integrations and analytics.

Voxt combines voice and text for rapid, context‑rich chats, offering live transcription, real‑time translation, AI‑summarized notes, group and place‑based threads, file sharing, end‑to‑end encryption, and threaded replies to shorten meetings and speed decisions.

PrankGPT lets users generate voice‑based prank calls by entering a phone number, selecting a voice (Marv, Zephyr, or Google Cloud), and providing a prompt. The client‑side app uses Vocode and produces high‑quality audio for hobbyists and developers.

CallHippo is a cloud business phone system with AI voice agents, parallel/predictive dialers, omnichannel inbox, CRM integrations, global virtual numbers and APIs to centralize customer conversations, automate dialing, route calls intelligently, and provide real-time analytics.

Dialpad is an AI-driven communication platform that facilitates customer interactions via voice, chat, SMS, and email. It integrates with popular apps and offers real-time insights, automated notes, and robust security features for efficient customer support.

OpenRouter gives one API key to access 300+ models from 60+ providers, SDK‑compatible, with visual routing, automated fall‑back, edge hosting, data‑policy controls, and agentic tools for building efficient autonomous workflows.

Voiceflow enables teams to create, test, and deploy AI‑powered conversational agents across chat, voice, phone, and web without coding. Its visual editor, real‑time collaboration, and secure deployment pipelines streamline design, evaluation, and omnichannel rollout.

VideoSDK offers real-time audio/video SDKs and low-latency infrastructure across Web, mobile, and Flutter, with APIs for interactive live streaming, real-time transcription and AI voice agents, SIP integration, session diagnostics, and enterprise-grade routing.

AI Soft Mart is a platform that helps businesses find VoIP software solutions, offering seamless communication, smart analytics, and advanced automation tools while ensuring high uptime and comprehensive customer support for streamlined workflows and enhanced productivity.

FreeTTS delivers browser‑based AI audio utilities: multilingual text‑to‑speech, accurate speech‑to‑text transcription, vocal isolation, voice enhancement, precise cut/join, and format conversion (MP3, WAV, FLAC, OGG, M4A). All processing is local and files auto‑delete after 12 hours.

Convoso is an AI-driven call center software offering predictive, preview, and manual dialing. It features campaign management, compliance tools, and integrates with CRMs to enhance contact rates across various industries like BPO, finance, and insurance.

Open Apps is an open-source app directory that offers a curated selection of free alternatives to popular software tools, enabling users to find quality open-source solutions across various categories for development and productivity needs.

Voicemaker is a cloud‑based text‑to‑speech platform offering 1,500+ AI voices in 130+ languages. It lets users adjust pitch, speed, pauses, add effects, clone voices with a minute of audio, and export to MP3, WAV, OGG, AAC, or OPUS.

Voice AI platform that builds conversational agents in five clicks, automating support, sales, and billing calls. It integrates natively with CRMs and databases for real‑time actions, supports multi‑OS softphones, and records transcriptions for audits.

Voicenotes lets users record audio on iPhone, Android, desktop, or web, automatically transcribing and summarizing content. It supports 100+ languages, integrates with video calls, and converts notes into blogs, emails, or tasks, keeping recordings encrypted and private.

Uncensored AI delivers a chat platform featuring Claude Opus, Gemini, Grok, and MiniMax M2‑Her. It supports text, audio, image, and code interactions, including image‑to‑video via Image Studio. API beta and usage stats benefit developers, writers, educators, and researchers.

Teloz consolidates calls, chat, video, and fax into an omnichannel interface, automating routing with an ACD engine and tools like sentiment analysis. It integrates with CRM, offers real‑time analytics, and supports multi‑device sync for efficient customer service.

HitPaw VoicePea delivers real‑time voice transformation with 300+ effects and low latency on Windows, macOS, iOS, Android. It supports 50+ audio/video formats, noise‑reduction, pitch control, virtual mic integration, and text‑to‑speech for streams, meetings, and content creation.

Vocads automates inbound/outbound calls, voicemail, follow‑ups, and surveys using AI agents built from templates and database‑driven dialogues. It supports 12+ languages, real‑time dashboards, 24/7 operation, and secure, multi‑channel deployment and integration.

AI Phone delivers real‑time bilingual subtitles and voice translation for phone, video, and messaging calls in 150+ languages, with instant camera‑text support for signs and menus. Invite contacts via a link—no extra download needed for seamless communication.

VoiSpark is an AI voice generator for text-to-speech and voice cloning, offering 500+ natural voices in 30+ languages. It enables custom emotions, styles, and unique vocal identities, with seamless integration for voiceovers in videos, podcasts, and apps.

Voicemod provides real‑time voice modulation on Windows and macOS with a virtual microphone, 200+ AI‑generated voices, soundboard, instant 30‑second replay, low‑latency keybinds, Voicelab editing, on‑device AI, and hardware integration for streaming.

VOMO transcribes audio and video into searchable, high‑accuracy text in 50+ languages. It auto‑applies templates, extracts key points, produces concise meeting summaries, offers AI query support, and stores all content in unlimited cloud storage for easy sharing.

Voice Changer .io allows uploading or live recording, applying effects such as monster, robot, alien, echo, reverse, slow, fast, and custom pitch, previewing them in real time, and downloading the result as .wav for podcasts, videos, streams, or presentations.

ZenCall.ai automates inbound voice routing by intent, sentiment, or CRM value, handling calls 24/7, booking appointments, and syncing with HubSpot, Zendesk, and Salesforce. Global Tier‑1 carrier connectivity and predictive dialing boost connection rates, reduce missed inquiries, and support sales te

Altered Studio provides real‑time voice morphing for calls and high‑quality post‑production editing, supporting low‑latency voice skins, accent translation, dysphonia restoration, and GPU‑accelerated workflows for precise editing and voice cloning.

Speechify converts PDFs, DOCX, EPUB, web pages, and more into natural‑sounding audio on iOS, Android, macOS, Windows, and Chrome. It offers an AI assistant that summarizes documents while you listen, supports voice typing, and allows offline access.

Tomato.ai is an accent softening API that enhances speech clarity in real-time, ideal for call centers. It features noise cancellation, facilitating better communication for diverse accents without altering natural speech, improving customer satisfaction and agent training.

Open SaaS is an open-source framework for building scalable applications with React and Node.js, offering features like pre-configured authentication, payment integrations, TypeScript support, an admin dashboard, and easy deployment without vendor lock-in.

Applio is an open-source AI voice cloning tool featuring over 26,000 models, multi-language support, and cross-platform compatibility. Its user-friendly interface and modular codebase cater to both novice and experienced users interested in advanced audio technology.

Online TTS platform converts text into audio in 100+ languages with 148+ AI voices. Users can tweak speed, pitch, pause, add background music, and download MP3, OGG, AAC, OPUS, or WAV for dubbing, audiobooks, and language learning.

OneContact unifies voice, chat, WhatsApp, and social media into a single contact‑center interface, offering real‑time agent assistance, bot automation, sentiment analysis, quality monitoring, workforce optimization, and CRM integration for global scalability.

VoiceDrop delivers ringless voicemail using AI voice cloning from a short sample. Users upload contacts, customize scripts with variables, schedule campaigns, integrate via CRM or API, and monitor compliance‑aware delivery and response analytics.

SigmaMind AI builds production voice agents without code, delivering sub‑800 ms latency and real‑time tool orchestration. It integrates with databases, CRMs, and APIs, and supports enterprise features like SOC 2 compliance, encryption, private cloud, and SIP trunking for scalable multichannel suppor

OpenAssistantGPT is an open‑source SaaS that lets you build no‑code AI chatbots for websites. It auto‑crawls a URL, supports GPT‑4/3.5, handles file attachments, SAML/SSO, API calls, and web search, with GitHub source and Vercel SDK.

Superwhisper converts spoken language into polished text for any app, works offline, supports 100+ languages with English translation, offers customizable tone and formatting, includes AI meeting assistant, and allows video/audio transcription with GPT/Claude/Llama models.

LuvVoice is a free online text-to-speech tool that converts text into audio using over 200 voices in 70 languages. Users can customize speech rate and pitch, making it suitable for content creation and educational purposes.

AiVOOV converts scripts into realistic audio in seconds, offering 2,300+ voices across 155+ languages. Features include customizable pauses, tone, automatic subtitle generation, and audio merging, suitable for videos, podcasts, e‑learning, IVR, and marketing.

Mevo is an open‑source platform that lets developers and data scientists host and customize their own instances on any OS or cloud. With GitHub‑hosted code, full documentation, and modular architecture, it supports integrations and ensures data privacy and compliance.

Sweepr unifies app, web, chat, and IVR into a single interface for telecom and ISP operators. It blends large‑language‑model flexibility with telco heuristics for real‑time support, compliance, and efficient human‑in‑the‑loop escalation.

Browser-based Online Audio Converter converts 300+ audio/video formats to MP3, WAV, M4A, FLAC, OGG, etc., extracts audio from video, offers bitrate/sample rate/channel controls, fade/reverse/voice removal, batch conversion, metadata editing, and cloud export.