DeepMemo

DeepMemo is an AI-powered second brain for saving web highlights and finding them later by meaning. It is built for people who want to keep track of things they read or think about, including students, writers, creators, researchers, and other curious minds.

Its core workflow starts in the browser: a Chrome extension lets users highlight text on any webpage, then right-click or use Alt+Shift+S to save it to DeepMemo. Each save captures the highlight, surrounding text, source URL, a screenshot, AI-generated tags, and a semantic embedding. The service then uses semantic search so memories can be found by concept rather than by keywords. Users can also ask questions in natural language and get answers with citations back to their saved content. The site says DeepMemo also connects saved items to one another, and it lists a coming-soon voice feature that will transcribe spoken thoughts and turn them into searchable memories.

DeepMemo describes itself as a knowledge layer for memories and ideas, with search, chat, and connection-making over a personal collection of saved material. The page frames it as a way to avoid losing useful notes, web content, and half-remembered ideas, and it specifically mentions use cases for lecture notes, swipe files, papers, and web research. It is delivered through the Chrome extension and a hosted version, and it can also be self-hosted for full control. The service says user data is encrypted in transit and at rest and is not used to train AI models.

Pricing is simple: a free plan is available and includes 100 memories with no credit card required to start. Paid Pro and Business plans are also listed, with Pro allowing 5,000 memories and Business offering unlimited storage.