# Signoapp

> Signoapp is an AI bookmark manager and visual personal knowledge library for links, notes, images and PDFs. It helps people collect reading and research, organize saved content and find it again.

The public site covers the product, plans, integrations and guides to personal knowledge management. Account content and files require authorization. The MCP endpoint at https://signoapp.com/mcp requires OAuth; this public index grants no access to a user's library. Plan allowances and available integrations are described on their public pages.

## Product and help

- [AI bookmark manager and visual knowledge library](https://www.signoapp.com/en): Save links, notes, images and PDFs in Signoapp. Organize your reading list and research in visual workspaces, then find saved content with AI.

- [Save bookmarks, organize research and search with AI](https://www.signoapp.com/en/product): Explore Signoapp's bookmark manager: save web pages, notes and files, organize visual collections, and search your personal knowledge library.

- [Partnerships for content collection and organization](https://www.signoapp.com/en/partners): Explore working with Signoapp to help people collect and organize useful content. Learn about partnerships and send your project to the team.

- [About Signoapp and your personal knowledge library](https://www.signoapp.com/en/about): Learn why Signoapp brings saved links, notes, images and PDFs into a searchable personal library, and how we approach capture, organization and rediscovery.

- [Bookmarking, research and knowledge management guides](https://www.signoapp.com/en/blog): Read practical guides to saving web pages, organizing research, preserving sources and finding knowledge again, with articles on AI and visual collections.

- [Browser extensions, ChatGPT and agent integrations](https://www.signoapp.com/en/apps): Connect your Signoapp library to browser extensions, ChatGPT, the CLI and MCP. Find ways to save, search and organize content across your tools.

- [Plans and pricing for your bookmarks and AI workspace](https://www.signoapp.com/en/pricing): Compare Signoapp Free, Mínimo, Pro and Ultra plans. Review storage and AI usage allowances, monthly or annual billing, and choose a plan for your library.

- [Careers in AI, engineering and product design](https://www.signoapp.com/en/careers): Explore Signoapp's roles in engineering, AI, product design and community. Help build tools for saving, organizing and finding personal knowledge.

- [Start your bookmark library with a link or note](https://www.signoapp.com/en/estimate): Try your first Signoapp save. Paste a useful link or write a note to start a personal library for your reading, research and ideas.

- [Open source licenses for apps, extensions and tools](https://www.signoapp.com/en/licenses): Review Signoapp's AGPL-3.0 license for the web app, browser extension, mobile app, CLI, MCP server and SDK.

- [Help with bookmarks, search, imports and integrations](https://www.signoapp.com/en/support): Find Signoapp help topics on saving bookmarks, organizing collections, search, imports, web archival, apps, APIs and integrations with AI agents.

- [Privacy policy for your content and personal data](https://www.signoapp.com/en/legal/privacy-policy): Read how Signoapp handles account data, saved content, private files, AI processing and cookies, and how to exercise your privacy rights.

- [Terms of service for the Signoapp cloud application](https://www.signoapp.com/en/legal/terms-of-service): Review the terms for using Signoapp, including accounts, saved content, subscriptions, acceptable use and responsibilities when sharing information.

- [Signoapp for ChatGPT](https://signoapp.com/chatgpt): Save, search and organize your authorized library from ChatGPT. Includes MCP connection information.

- [Source code and documentation](https://github.com/Drinks2/signoapp): Public repository and project documentation.

## Published guides

- [Duplicate Saves Are a Signal, Not Just Clutter](https://www.signoapp.com/en/blog/handle-duplicate-saves/index.md): Treat a duplicate as evidence of renewed interest, then merge its notes instead of keeping silent copies.

- [Separate Reference Material From Things You Must Do](https://www.signoapp.com/en/blog/separate-reference-from-action/index.md): Keep reference material searchable, but move tasks and deadlines into the system where you act on them.

- [Organize Around Projects, Not the App That Holds Them](https://www.signoapp.com/en/blog/organize-by-project-not-app/index.md): Group material around the decision or deliverable it supports, even when the files came from different tools.

- [How to Stop Tag Sprawl Before Search Gets Noisy](https://www.signoapp.com/en/blog/prevent-tag-sprawl/index.md): Merge tags that lead to the same retrieval behavior and retire any tag you cannot define in one sentence.

- [Name Lists for the Moment You Need Them](https://www.signoapp.com/en/blog/name-lists-for-retrieval/index.md): Name a list for the moment of use, not for the broad subject it happens to contain.

- [Build a Taxonomy That Does Not Become Homework](https://www.signoapp.com/en/blog/build-lightweight-taxonomy/index.md): Start with a few terms that support real searches, then add a term only after repeated retrieval failures.

- [Folders or Tags? Choose by Retrieval, Not Habit](https://www.signoapp.com/en/blog/folders-vs-tags/index.md): Use folders for stable boundaries and tags for traits that can cross those boundaries.

- [The 15-Minute Weekly Capture Reset](https://www.signoapp.com/en/blog/weekly-capture-reset/index.md): Empty the capture inbox once a week by deleting, filing, or assigning a next action to every item.

- [One Capture Inbox for Links, Files, Images, and Notes](https://www.signoapp.com/en/blog/one-inbox-for-every-format/index.md): Send every format to one review queue, but keep the original file type and source metadata intact.

- [Turn a Quick Note Into a Traceable Source](https://www.signoapp.com/en/blog/turn-quick-notes-into-sources/index.md): Link the note to the original item before adding interpretation, so fact and reaction do not blur together.

- [Make Screenshots Useful After the Moment Passes](https://www.signoapp.com/en/blog/screenshots-that-remain-useful/index.md): Pair every useful screenshot with its source, capture date, and a sentence that explains what the image proves.

- [Archive PDFs So Future You Can Use Them](https://www.signoapp.com/en/blog/archive-pdfs-for-later/index.md): Store the file with its canonical source, publication date, and a note about the pages that matter.

- [Stop Letting Newsletters Become a Second Inbox](https://www.signoapp.com/en/blog/save-newsletters-with-purpose/index.md): Keep the specific issue or passage you need, then remove the newsletter from the action inbox.

- [A Mobile Capture Inbox You Can Actually Empty](https://www.signoapp.com/en/blog/mobile-capture-inbox/index.md): Use mobile capture as a temporary inbox, then process it on a fixed schedule instead of organizing on a small screen.

- [How to Close Tabs Without Losing Your Train of Thought](https://www.signoapp.com/en/blog/close-tabs-without-losing-work/index.md): Before closing a tab, save the page with the next action or the unresolved question that kept it open.

- [Save the Context, Not Just the Link](https://www.signoapp.com/en/blog/save-context-not-just-link/index.md): Add one sentence about why the page mattered and capture the source details needed to judge it later.

- [What Is Worth Saving? A Test for a Calmer Library](https://www.signoapp.com/en/blog/what-deserves-saving/index.md): Save an item only when you can name a likely future use, the question it answers, or the decision it may change.

- [Why Saved Links Disappear. And How To Keep The Context That Matters.](https://www.signoapp.com/en/blog/why-saved-links-disappear/index.md): A bookmark can keep the right URL and still lose everything that made the page useful. Here is how to preserve the context that matters.

- [Curiosity Runs on Cycles](https://www.signoapp.com/en/blog/curiosity-runs-on-cycles/index.md): Interests move in long cycles. The best personal libraries stay flexible, searchable, and ready when an old question becomes relevant again.

- [Your Library Has No Filing System: Why the Future of Search Is Semantic](https://www.signoapp.com/en/blog/search-beyond-folders/index.md): Information is becoming the raw material of everyday work, but folders were never designed for everything people save now.

- [Signoapp Is Building a Calmer Home for Everything Worth Saving](https://www.signoapp.com/en/blog/a-calmer-personal-library/index.md): A focused personal library brings links, notes, images, PDFs, and saved context together without turning curiosity into filing work.

- [Meet Signoapp: Your Internet's Memory](https://www.signoapp.com/en/blog/meet-signoapp/index.md): A calmer way to collect useful things online, keep their context, and find them again without remembering where you put them.

- [Introducing Shared Lists: Collect Better, Together](https://www.signoapp.com/en/blog/introducing-shared-lists/index.md): Shared lists bring people together around the sources, references, and ideas that make a project better.

- [Introducing Signoapp Pro](https://www.signoapp.com/en/blog/introducing-signoapp-pro/index.md): A plan designed for bigger collections, deeper search, and long-term knowledge preservation.

## Languages

- [English](https://www.signoapp.com/en): Save links, notes, images and PDFs in Signoapp. Organize your reading list and research in visual workspaces, then find saved content with AI.

- [Español](https://www.signoapp.com/es): Guarda enlaces, notas, imágenes y PDFs en Signoapp. Organiza lecturas e investigación en espacios visuales y encuentra tu contenido con ayuda de IA.

- [Português](https://www.signoapp.com/pt): Salve links, notas, imagens e PDFs no Signoapp. Organize leituras e pesquisas em espaços visuais e encontre seu conteúdo com ajuda da IA.

- [Français](https://www.signoapp.com/fr): Enregistrez liens, notes, images et PDF dans Signoapp. Organisez vos lectures et recherches dans des espaces visuels et retrouvez-les avec l'IA.

- [Deutsch](https://www.signoapp.com/de): Speichere Links, Notizen, Bilder und PDFs in Signoapp. Ordne Leselisten und Recherche in visuellen Arbeitsbereichen und finde Inhalte mit KI.

- [简体中文](https://www.signoapp.com/zh): 用 Signoapp 保存链接、笔记、图片和 PDF。在可视化工作区整理阅读清单和研究资料，借助 AI 找回保存的内容。

- [日本語](https://www.signoapp.com/ja): Signoapp にリンク、メモ、画像、PDF を保存。読書リストや調査資料をビジュアルなワークスペースで整理し、AI で保存した情報を見つけられます。

- [हिन्दी](https://www.signoapp.com/hi): Signoapp में लिंक, नोट्स, चित्र और PDF सहेजें। विज़ुअल वर्कस्पेस में पठन सूची और शोध व्यवस्थित करें और AI से अपनी सामग्री खोजें।

## Optional

- [Public summaries and complete published guides](https://www.signoapp.com/llms-full.txt): Page summaries and published articles in all eight site languages. Excludes drafts, scheduled future articles and private account content.

- [XML sitemap](https://www.signoapp.com/sitemap.xml): Canonical public pages, blog pagination, translations and publication metadata.

- [Blog feed (English)](https://www.signoapp.com/en/feed.xml): Published articles in en-US.

- [Blog feed (Español)](https://www.signoapp.com/es/feed.xml): Published articles in es-MX.

- [Blog feed (Português)](https://www.signoapp.com/pt/feed.xml): Published articles in pt-BR.

- [Blog feed (Français)](https://www.signoapp.com/fr/feed.xml): Published articles in fr-FR.

- [Blog feed (Deutsch)](https://www.signoapp.com/de/feed.xml): Published articles in de-DE.

- [Blog feed (简体中文)](https://www.signoapp.com/zh/feed.xml): Published articles in zh-CN.

- [Blog feed (日本語)](https://www.signoapp.com/ja/feed.xml): Published articles in ja-JP.

- [Blog feed (हिन्दी)](https://www.signoapp.com/hi/feed.xml): Published articles in hi-IN.