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SEPIA

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What SEPIA is

SEPIA is an open-source framework and cross-platform app for creating a private voice assistant that users can adapt to their needs. Its self-hosted server provides the database, account management, natural-language understanding and chat, while the client accepts spoken or typed requests and can ask follow-up questions if a service needs more details. Users can create commands in the app, build voice-controlled services with the Java SDK, or replace framework modules. Documented services include news, radio, timers, alarms, reminders, to-do and shopping lists, smart-home controls, navigation, weather, Wikipedia and web search. The documentation names openHAB as an integration, and SEPIA-Home v2.7.0 release notes add Home Assistant support. Speech recognition can use native platform APIs or a custom open-source STT server; text-to-speech can use native APIs or compatible server tools. The client runs in a desktop browser and on Android or iOS; the iOS instructions use Safari and adding the app as a PWA. Server installation guidance covers Windows, Mac, Linux and Raspberry Pi. SEPIA is free, and its self-hosted approach lets users control their data. It does not host public servers, so users need their own server or access to one hosted by a friend or company.

Who it suits

SEPIA suits people who want a voice assistant they can customize and host themselves, including those comfortable installing and managing a server. It also fits developers who want to create voice-controlled services or change framework modules.

What it does well

  • Open-source framework with a free plan.
  • Spoken and typed requests with follow-up questions.
  • Users can build services with the Java SDK.
  • Documented services span reminders, search, weather and smart home.
  • Clients work in browsers, Android and iOS.
  • Supports openHAB and Home Assistant integrations.

What to know first

  • Requires access to a self-hosted server.
  • SEPIA does not currently host public servers.
  • iOS setup uses Safari and adds the app as a PWA.

Limits

The app is free, but users need access to their own server or one hosted by a friend or company because SEPIA does not currently host public servers.

Getting started

  1. Visit https://sepia-framework.github.io/.
  2. Arrange access to your own server or one hosted by a friend or company.
  3. Install SEPIA-Home on Windows, Mac or Linux, or follow the Raspberry Pi instructions.
  4. Open the client in a desktop browser or on Android; on iOS, open it in Safari and add it as a PWA.
  5. Configure speech options using native APIs or compatible server tools as needed.

Verdict

Choose SEPIA if you want a free, open-source assistant with customizable services and control over self-hosted data. It is less suited to someone who needs a public server provided by SEPIA or does not want to arrange server access.

Questions

Is SEPIA free?

Yes. SEPIA is free and has a free plan.

Is SEPIA open source?

Yes. It is an open-source framework and app.

Which platforms does it support?

The client documentation describes desktop browser, Android and iOS use. Server installation guidance covers Windows, Mac, Linux and Raspberry Pi.

Can I use SEPIA without hosting a server?

Users need access to their own server or one hosted by a friend or company; SEPIA does not currently host public servers.

What smart-home integrations are named?

The documentation names openHAB, and SEPIA-Home v2.7.0 release notes add Home Assistant support.

How can I get help?

The documentation directs questions and bug reports to GitHub issues or discussions.

Facts from SEPIA's own pages

Client platforms
The client documentation describes browser use on desktop, Android, and iOS; on iOS it instructs users to open the app in Safari and add it as a PWA. · github.com, 4 Oct 2026
Customization
Users can create commands in the app, build voice-controlled services with the Java SDK, or replace framework modules. · sepia-framework.github.io, 4 Oct 2026
Dialog
SEPIA handles spoken or typed natural-language requests and can ask follow-up questions when a service needs more information. · sepia-framework.github.io, 4 Oct 2026
Hosting limit
The documentation says SEPIA is not currently hosting public servers, so users need access to their own server or one hosted by a friend or company. · github.com, 4 Oct 2026
How it works
Its self-hosted server runs core modules including the database, user-account management, natural-language understanding, and chat. · sepia-framework.github.io, 4 Oct 2026
Integrations
The documentation names openHAB as an example smart-home integration, and the SEPIA-Home v2.7.0 release notes state that it adds Home Assistant support. · github.com, 4 Oct 2026
Mesh Nodes
SEPIA Mesh Nodes can connect to the assistant and execute programs on their device; users can create voice commands or upload programs through the Control HUB. · sepia-framework.github.io, 4 Oct 2026
Privacy
The homepage says users control their data in a self-hosted environment and describes the server as the backbone of the framework. · sepia-framework.github.io, 4 Oct 2026
Product
SEPIA is an open-source framework and cross-platform app for building a private, customizable digital voice assistant. · sepia-framework.github.io, 4 Oct 2026
Security setup
The installation documentation describes self-signed SSL for private networks and Let's Encrypt SSL for servers reachable from outside the network. · github.com, 4 Oct 2026
Server platforms
The installation documentation describes SEPIA-Home for Windows, Mac, and Linux, and provides Raspberry Pi installation instructions. · github.com, 4 Oct 2026
Smart services
The documentation lists services including news, radio, timers, alarms, reminders, to-do and shopping lists, smart home, navigation, weather, Wikipedia, and web search. · github.com, 4 Oct 2026
Speech
The client supports speech recognition through native platform APIs or a custom open-source STT server, and text-to-speech through native APIs or compatible server tools. · github.com, 4 Oct 2026
Support
The documentation directs users with questions or bug reports to GitHub issues or discussions. · github.com, 4 Oct 2026

Where SEPIA stands on Freedom251

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