Best Open Source Alternatives to Character.ai

Compare the best free and open-source alternatives to Character.ai — self-hosted and desktop replacements you fully control, ranked by GitHub stars, license and platform support.

Curated by open-source.store · Updated August 2026 · 3 alternatives

Character.ai

Proprietary SaaS

PricingFreemium

Platformsweb, mobile

WebsiteVisit site

Character.ai alternatives compared

Open-source alternatives to Character.ai, compared by stars, license and platform
Tool		License	Platforms	Self-hosted
Open WebUI	147,557	MIT	LinuxDocker	Yes	Aug 2026	Visit
Text Generation WebUI	47,512	AGPL-3.0	LinuxmacOSWindows	Yes	Jun 2026	Visit
LibreChat	41,528	MIT	LinuxDockerWeb	Yes	Aug 2026	Visit