Reviva

Reviva is an independent software publisher, distributed through its GitHub presence, that focuses on personal knowledge management and AI-assisted learning tools. Its product, Reviva, is a learning workbench designed to help users work directly with their own study and reference materials. The application supports question-and-answer interaction with uploaded content, note-taking, spaced or structured review workflows, and creative output generation, so that a single environment covers the cycle from reading source material to producing essays, summaries, or other written work. A distinguishing characteristic of the product is its local-first architecture, meaning user data is stored primarily on the user's own device rather than relying on cloud services, which suits privacy-conscious students, researchers, and writers. The software is model-agnostic in its approach, supporting multiple AI models rather than locking users into a single provider, and it includes a Wiki-style knowledge base for organizing interconnected notes and documents. Built-in AI Agent capabilities allow the application to automate multi-step tasks such as retrieving information, drafting content, or structuring material across the knowledge base, while dedicated creation tools assist with authoring and refining final outputs. Typical use cases include academic study and exam preparation, literature review and research organization, personal knowledge base maintenance, and content writing that draws on a curated collection of reference documents. The product is aimed at learners and knowledge workers who want an integrated, AI-enhanced workspace that keeps their data under their own control while offering flexible access to different language models for analysis, retrieval, and generative writing tasks.