Home / Tags / Open source

Open source

13 sites in the catalogue match this tag. Click the link from a card and you get the full data table for the category, not the summary above.

Projects whose source code is public and can be inspected, modified or forked — usually the strongest privacy story in this category.

13 sites
Filters

13 sites match

The self-hosted frontend the power users all run

If you want total control and zero subscription, this is where the advanced users live.

FreeMatureVoice calls+5

Run large language models locally with one command

The de-facto local model runtime: one command to run open models, free and open-source.

FreeCustom characters

Free character chat that runs locally or in the cloud

The most generous free tier in the category: unlimited chat on locally run models, 600 cloud messages a day, no card required.

$9/moVoice notesMemory+4

Self-hosted AI platform with personas, RAG and a 500k+ community

The power-user pick: run any model locally or in the cloud with zero data retention and full control.

FreeVoice notesMemory+4

Jan

4.1

Open-source ChatGPT alternative that runs fully offline

A clean local assistant: open-source, offline-first, with an OpenAI-compatible API server built in.

FreeCustom characters

Open-source chat UI with a community agent marketplace

A serious open-source option: self-host it, plug in any model, and browse community personas — more assistant than romantic partner.

FreeVoice notesMemory+3

On-device AI chat with your documents, local or cloud models

Document-grounded private AI: chat with your files on desktop, connect local or hosted models.

FreeMemoryCustom characters

The veteran local-model front end, now a no-install desktop app

Formerly text-generation-webui: not a companion app, but the plumbing most local companion setups are built on.

FreeMatureVoice notes+4

Open-source roleplay chat with community cards and no limits

The open-source flag behind the tavern scene: free web chat, community cards, plug in your own model.

FreeMatureCustom characters

Browser-based character chat with card importing

A lighter alternative to SillyTavern that runs in a browser tab with no install.

FreeMatureVoice notes+4

The original open-source tavern frontend for character roleplay

The grandfather of the tavern scene, now at version 2: free, open-source, plug in any model and any card.

FreeMatureCustom characters

Open-source multi-bot chat with persistent memory

Free and genuinely capable, with chat memory and multi-bot scenes.

FreeMatureMemory+4

Local story generation with no cloud dependency

The classic offline story engine: clunky, but it never phones home.

FreeMatureMemory+2

Open source — common questions

What does “Open source” mean here?

It is a trait we recorded for a site after opening the product, not a marketing claim copied from its website. 13 entries in the catalogue carry it.

Which Open source site ranks highest?

SillyTavern, with an editorial score of 4.3 out of 5, at Free. Ranking is by our editorial score and is never influenced by payment.

Are there free options that match?

Yes — 13 of the 13 entries tagged Open source have a free tier. Switch the price filter on this page to see only those.