Backyard AI (Desktop, Deprecated)
Character-focused local desktop app (now deprecated) known for no-filter RP; still useful as a reference/shell.
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Jan (Desktop)
Open-source local LLM desktop app—download models, chat offline, and customize prompts for RP-style dialogs.
GPT4All (Desktop)
Privacy-first local chatbot app with downloadable models, long chats, and document memory—usable for custom RP.
LM Studio (Desktop)
Popular desktop app to run and chat with local LLMs; simple model management and fast GPU/CPU offload for RP sessions.
GPT4All Model Library
Local AI app and library with a curated catalog of downloadable open-weight models.
CereProc — CereVoiceMe Voice Cloning
Create a TTS clone of your own voice at home via guided recordings; long-standing vendor in custom voices.
VanceAI — Image Upscaler
Online and desktop upscaler with multiple models and scaling presets.
Upscayl — Open-Source AI Upscaler
Free desktop upscaler using Real-ESRGAN; supports macOS/Windows/Linux (and cloud).
Mate Translate
Cross-platform translator with browser and desktop apps; page and subtitle translation.