Explore 19,617 verified tools
Every tool here passed a live check of its own website. Filter by what matters to you, then open a profile or jump to it on the map.
1,482 tools · listed A to Z, so position is not a ranking
- Think & Capture / Read-later & research
NowComment
NowComment lets groups read and comment on texts, images and videos together, with threaded discussion inside shared documents.
- Think & Capture / Notes & knowledge bases
nTilia
nTilia is an offline notes app for field journalists and researchers with on-device transcription, an encrypted vault and a citable journal.
- Think & Capture / Notes & knowledge bases
Nuclino
Nuclino is a fast team workspace for writing docs, wikis and project notes that link together.
- Think & Capture / Read-later & research
Nuggetize
Nuggetize summarizes any web link in seconds, lets you ask questions with AI and organizes your bookmarks.
- Think & Capture / Notes & knowledge bases
Numbr
Numbr is a web calculator and notepad where notes and numbers sit together, also available as a Chrome extension.
- Think & Capture / Notes & knowledge bases
nvUltra
nvUltra is a note-taking app with searchable, portable MultiMarkdown notes, currently in development by two long-time Mac developers.
- Think & Capture / Notes & knowledge bases
Oaklet Notes
Oaklet Notes lets you type and handwrite in one note across desktop and mobile, with on-device encryption and no account.
- Think & Capture / Notes & knowledge bases
Obsidian
Obsidian is a free note taking app that stores linked markdown notes locally for personal knowledge management.
- Think & Capture / Notes & knowledge bases
Obsidian Copilot
Copilot for Obsidian adds AI agents inside Obsidian to search, organize and write notes, using models such as Claude and ChatGPT.
- Think & Capture / Notes & knowledge bases
Octarine
Octarine is a private, markdown-based note taking app focused on speed and data ownership, with tasks and projects built in.
- Think & Capture / Notes & knowledge bases
OctoNote
OctoNote is an iOS Markdown note-taking app that stores and syncs notes through GitHub.
- Think & Capture / Read-later & research
Offprint
Offprint is a Safari extension that turns any web page into a clean PDF, EPUB or Markdown file in one tap.
- Think & Capture / Read-later & research
OhMyStar
OhMyStar is a native Mac workspace for tagging, searching and reading your GitHub starred repositories.
- Think & Capture / Notes & knowledge bases
OktoNote
OktoNote is an AI note taking app that turns text, voice recordings, photos and documents into organized notes.
- Think & Capture / Read-later & research
Omamo
Omamo saves tabs, links, notes and YouTube videos from major browsers and iPhone into boards, with a free account.
- Think & Capture / Screenshots & capture
omemo
omemo sorts iPhone screenshots automatically, works out what each one is for and sends reminders, such as for saved links.
- Think & Capture / Screenshots & capture
OnDraw
OnDraw adds a drawing toolbar to any Mac app with arrows, boxes, step numbers and a spotlight cursor for recording tutorials.
- Think & Capture / Whiteboards & mind maps
OneModel
OneModel is a diagramming tool for software engineers that routes arrows automatically and supports collaboration on architecture diagrams.
- Think & Capture / Notes & knowledge bases
OneMore
OneMore is a free add-in for Microsoft OneNote that adds extra editing and organizing features.
- Think & Capture / Notes & knowledge bases
Onetastic
Onetastic is an add-in for Microsoft OneNote that adds macros, extra formatting options and other features to the desktop app.
- Think & Capture / Screenshots & capture
OnlineOCR
Online OCR converts images and scans into editable text or Word files using a free web converter.
- Think & Capture / Read-later & research
Open Access Helper
Open Access Helper is a free browser extension and iOS app that finds legal open access versions of paywalled research articles.
- Think & Capture / Read-later & research
Open Library
Open Library is an open catalog where readers find books, borrow digital copies and keep reading goals and lists.
- Think & Capture / Whiteboards & mind maps
OpenBoard
OpenBoard is an open-source interactive whiteboard application for classrooms and presentations.
- Think & Capture / Notes & knowledge bases
OpenKM
OpenKM is document management software for storing, searching and sharing company documents, with workflow automation and an open-source edition.
- Think & Capture / Notes & knowledge bases
OpenMark
OpenMark opens Markdown files on Mac, iPhone and iPad with rendered Mermaid diagrams, math and syntax highlighting.
- Think & Capture / Screenshots & capture
OpenScreenShot
OpenScreenShot is a free open-source Chrome and Firefox extension that captures full-page screenshots, annotates them and saves as image or PDF locally.
- Think & Capture / Notes & knowledge bases
Opensidian
Opensidian is an open-source Linux app that opens your existing Markdown vault with wikilinks, backlinks and a graph view.
- Think & Capture / Notes & knowledge bases
Orange Cat
Orange Cat is a native Markdown notebook for Mac, iPad and iPhone to write, preview, organize and keep note versions.
- Think & Capture / Notes & knowledge bases
Orgzly
Orgzly is an Android notes and to-do outliner using org mode notebooks synced with folders on the device.
- Think & Capture / Notes & knowledge bases
Original
original is an editor that adds outline mode, backlinks, Markdown shortcuts and a formatting toolbar to the Apple Notes you already have.
- Think & Capture / Read-later & research
Otio
Otio keeps PDFs, videos and web pages in one library and lets users chat with them and get cited summaries.
- Think & Capture / Notes & knowledge bases
Outline
Outline is a team wiki for internal documentation, specs, meeting notes and onboarding material.
- Think & Capture / Screenshots & capture
Outplayed
Outplayed automatically records gamers' best moments while they play so they can edit and share the clips.
- Think & Capture / Screenshots & capture
OwlOCR
OwlOCR is a Mac app that pulls text from screenshots, scans and PDFs using Apple Vision or optional cloud AI models.
- Think & Capture / Read-later & research
PACR
PACR is a research workspace where scientists search literature, organise papers into projects, write manuscripts with sources and collaborate.
- Think & Capture / Whiteboards & mind maps
Padlet
Padlet is a tool for making shared boards where people post notes, links and media for visual collaboration and teaching.
- Think & Capture / Read-later & research
PageForth
PageForth is a Mac news reader that summarizes any website, with no RSS feed needed, using Apple Intelligence.
- Think & Capture / Read-later & research
PagePanda
PagePanda saves articles from Safari and other apps for offline reading in eight reader styles, with listen mode, highlights and notes.
- Think & Capture / Whiteboards & mind maps
PairInk
PairInk is an app for sketching ideas, taking notes and annotating PDFs, keeping boards locally and syncing devices over Wi-Fi.
- Think & Capture / Read-later & research
Panda
Panda is a simple free reader that gathers favorite design and tech sites into a browser homepage.
- Think & Capture / Read-later & research
Panels
Panels is a comic reader for iPad, iPhone and Mac that organizes DRM-free comic files into a tidy library.
- Think & Capture / Read-later & research
Pano
Pano collects links saved from across the internet into searchable shelves, with a Chrome extension and an iOS app.
- Think & Capture / Screenshots & capture
Paparazzi
Paparazzi! is a small macOS utility that captures full-length screenshots of web pages.
- Think & Capture / Notes & knowledge bases
Paper
Paper is a free notes app with notebooks and checklists for Android, iPhone and Mac.
- Think & Capture / Read-later & research
Paper Rooms
Paper Rooms is a free local-first library where you paste a paper link and it is filed under a call number and shelf.
- Think & Capture / Read-later & research
Paper Scout
Paper Scout reads new PubMed papers, ranks the few that matter to your research and explains in plain English why each was chosen.
- Think & Capture / Read-later & research
Paper2Pod
Paper2Pod turns uploaded research paper PDFs into podcast-style audio using AI so you can listen instead of reading.