Best Open Source Alternatives to T3.chat

Compare the best free and open-source alternatives to T3.chat — self-hosted and desktop replacements you fully control, ranked by GitHub stars, license and platform support.

Curated by open-source.store · Updated November 2026 · 4 alternatives

T3.chat

Proprietary SaaS

T3.chat alternatives compared

Open-source alternatives to T3.chat, compared by stars, license and platform
Tool		License	Platforms	Self-hosted
LobeChat	83,777	—	LinuxmacOSWindows	No	Nov 2026	Visit
Cherry Studio	53,230	AGPL-3.0	LinuxmacOSWindows	No	Nov 2026	Visit
Fullmoon	2,271	MIT		No	May 2025	Visit
VT Chat	59	MIT	Web	No	Oct 2026	Visit

Top open-source T3.chat alternatives

LobeChat83,777

LobeChat is an open-source, self-hosted AI workspace and ChatGPT alternative that unifies multi-model routing, MCP tool integrations, and private memory.

LinuxmacOSWindows

vs T3.chat: a free, open-source option you fully control.

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EasyP

Promoted

The modern standard for Protobuf workflows

Lint, codegen, breaking-change checks and dependency management in one Git-native CLI. Open source, no registry lock-in.

lintgeneratebreakingeasyp.lock

go · ts · java generated

$ easyp breaking

backward compatible

Cherry Studio53,230AGPL-3.0

Open-source desktop client for Claude and OpenAI APIs that pairs cloud models with local Ollama runtimes and Model Context Protocol tools.

LinuxmacOSWindows

vs T3.chat: a free, open-source option you fully control, licensed AGPL-3.0.

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Fullmoon2,271MIT

Fullmoon is an open-source iOS and macOS alternative to ChatGPT, running quantized MLX models fully offline on Apple silicon with zero data telemetry.

vs T3.chat: a free, open-source option you fully control, licensed MIT.

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VT Chat59MIT

Self-hosted AI chat interface with multi-model BYOK routing, local Ollama support, and browser-only IndexedDB storage.

Web

vs T3.chat: a free, open-source option you fully control, licensed MIT.

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