Open source focus

Open Source Alternatives to Tachline

10 open source Conversational AI options similar to Tachline, ranked by named competitors first, sector overlap, and our 0-100 AI-readiness score. Every company listed publishes its source: each one carries an open source sector tag and a public GitHub repository.

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Vocode
Not rated
Open-source library for building hyper-realistic voice agents and conversational AI applications.
Open source · Self-hostable
Rasa
Not rated
Open-source conversational AI platform for building custom chatbots and virtual assistants.
Open source · Self-hostable
Coqui
Not rated
Open-source AI models for voice synthesis, translation, and TTS.
Open source · Self-hostable
PromptQL
Not rated
An AI-native workspace designed to turn team interactions into actionable, proprietary data for agentic workflows.
Open source · Self-hostable
WhisperWeb
Not rated
Free in-browser Whisper transcription and subtitle editor; audio stays on your device.
Open source
Kestra
Not rated
An open-source orchestration platform for unifying data pipelines, AI workflows, and business processes.
Open source · Self-hostable
cal.com
Not rated
Open-source scheduling infrastructure for individuals, businesses, and developers.
Open source · Self-hostable
Parlant
Not rated
Parlant is an open-source conversational AI engine dedicated to solving the Human/AI alignment problem by enabling Large Language Models to reliably perform as desired and prevent hallucinations.
Open source · Self-hostable
Databricks
Not rated
A unified data analytics and AI platform built on the lakehouse architecture.
Open source · Self-hostable
Kyutai
Not rated
A non-profit AI research lab focused on open science and developing advanced multimodal and voice AI models.
Open source · Self-hostable

Company	License	Founded	Rating	Reviews
VocodeOpen-source library for building hyper-realistic voice agents and conversational AI applications.	Open source · Self-hostable	-	Not rated	-
RasaOpen-source conversational AI platform for building custom chatbots and virtual assistants.	Open source · Self-hostable	-	Not rated	-
CoquiOpen-source AI models for voice synthesis, translation, and TTS.	Open source · Self-hostable	-	Not rated	-
PromptQLAn AI-native workspace designed to turn team interactions into actionable, proprietary data for agentic workflows.	Open source · Self-hostable	-	Not rated	-
WhisperWebFree in-browser Whisper transcription and subtitle editor; audio stays on your device.	Open source	-	Not rated	-
KestraAn open-source orchestration platform for unifying data pipelines, AI workflows, and business processes.	Open source · Self-hostable	-	Not rated	-
cal.comOpen-source scheduling infrastructure for individuals, businesses, and developers.	Open source · Self-hostable	-	Not rated	-
ParlantParlant is an open-source conversational AI engine dedicated to solving the Human/AI alignment problem by enabling Large Language Models to reliably perform as desired and prevent hallucinations.	Open source · Self-hostable	-	Not rated	-
DatabricksA unified data analytics and AI platform built on the lakehouse architecture.	Open source · Self-hostable	-	Not rated	-
KyutaiA non-profit AI research lab focused on open science and developing advanced multimodal and voice AI models.	Open source · Self-hostable	-	Not rated	-