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
Hypothesis
Hypothesis is a tool for annotating web pages and documents together, widely used in classrooms.
- Think & Capture / Screenshots & capture
i2OCR
i2OCR extracts text from images and scanned PDFs online in 128 languages for free.
- Think & Capture / Whiteboards & mind maps
IdeaBoardz
IdeaBoardz is a tool for running brainstorming and retrospective sessions on shared boards with remote teams.
- Think & Capture / Whiteboards & mind maps
Ideaflip
Ideaflip is an online sticky note tool for planning, brainstorming and organizing ideas with a team.
- Think & Capture / Notes & knowledge bases
Idealize
Idealize is a brain dump app for ADHD users that sorts rambled thoughts, reminds you on time and gives each item a small first step.
- Think & Capture / Whiteboards & mind maps
IdeaMap
Ideamap is a visual workspace where teams brainstorm and use AI to develop ideas.
- Think & Capture / Whiteboards & mind maps
Ideas Mind Mapping
Ideas is a mind mapping app that connects with Todoist so you can map ideas and turn them into tasks.
- Think & Capture / Notes & knowledge bases
Igneous
Igneous is a native Swift notes app for iPhone, iPad and Mac that stores notes as plain .md files in a folder.
- Think & Capture / Notes & knowledge bases
Ikes
Ikes stores notes, quotes and inspirations in one searchable place, free to use without registration.
- Think & Capture / Read-later & research
iLinkVault
iLinkVault keeps links, articles and research sources in a private vault and uses AI to find them by topic or half-remembered intent.
- Think & Capture / Screenshots & capture
Image to Text
Image to Text extracts text from pictures with an online OCR converter.
- Think & Capture / Screenshots & capture
Imagy Screenshot
Imagy Screenshot is a free native Mac app for capturing, annotating and sharing screenshots, with built-in Imagy cloud storage.
- Think & Capture / Screenshots & capture
img2txt
Img2txt extracts text from images, screenshots, and PDFs online with OCR in over 120 languages.
- Think & Capture / Screenshots & capture
ImgBB
ImgBB is a free image hosting service where users upload pictures and share links to them.
- Think & Capture / Screenshots & capture
imgbox
imgbox is a free image host where people upload JPG, GIF and PNG files and share links to them.
- Think & Capture / Screenshots & capture
Imgur
Imgur is an image hosting and sharing site for uploading pictures and posting them online.
- Think & Capture / Whiteboards & mind maps
iMindQ
iMindQ is mind mapping and brainstorming software for Windows and other platforms with flowchart support.
- Think & Capture / Screenshots & capture
INBOARD
Inboard organizes screenshots, images and photos into boards so designers can keep their inspiration out of Finder folders.
- Think & Capture / Whiteboards & mind maps
Inclr
Inclr is a visual mind mapping app that lays out notes, ideas, research and projects spatially.
- Think & Capture / Whiteboards & mind maps
Infinity Maps
Infinity Maps combines a whiteboard and a wiki so people can build visual knowledge maps and share them with collaborators.
- Think & Capture / Notes & knowledge bases
Infinote
Infinote is an offline note-taking app built around a single page with infinite scroll.
- Think & Capture / Notes & knowledge bases
infolio(影书)
infolio is a local-first personal knowledge base combining documents, whiteboards, spreadsheets, albums, calendar and a password vault.
- Think & Capture / Notes & knowledge bases
Infoplane
Infoplane stores small personal details such as numbers and settings as short notes on iPhone, iPad and Mac for quick recall.
- Think & Capture / Whiteboards & mind maps
Ink2Go
Ink2Go is screen annotation and recording software for presentations and teaching.
- Think & Capture / Notes & knowledge bases
Inkdrop
Inkdrop is a Markdown note-taking app for developers with tags, sync across devices and AI features.
- Think & Capture / Notes & knowledge bases
InkNote
InkNote brings handwritten notes, documents, planners and lecture recordings into one workspace on Apple devices.
- Think & Capture / Notes & knowledge bases
Inkpad Notepad
Inkpad Notepad is a notes and list app that syncs across Android, iOS and the web.
- Think & Capture / Notes & knowledge bases
InkSpace
InkSpace is a free iPad and iPhone notebook combining handwriting, PDF markup, live math, diagrams and cited papers for students.
- Think & Capture / Notes & knowledge bases
Inkstone
Inkstone is a native Mac Markdown editor for working with any Markdown file stored locally on your computer.
- Think & Capture / Read-later & research
Inoreader
Inoreader is an RSS reader and news aggregator that follows websites, social feeds and podcasts in one place.
- Think & Capture / Whiteboards & mind maps
Instaboard
Instaboard is an online whiteboard where you arrange cards, lists, photos and handwriting, and share a link to collaborate.
- Think & Capture / Read-later & research
Instapaper
Instapaper saves web pages so you can read them later on phones, computers or e-readers.
- Think & Capture / Screenshots & capture
Irchiver
Irchiver captures full-resolution screenshots of the web pages you visit and makes your whole browsing history searchable by text.
- Think & Capture / Screenshots & capture
Iris
Iris is a Mac screen recorder that captures two sources at once with Mac audio, sold as a subscription or lifetime purchase.
- Think & Capture / Screenshots & capture
iShot
Better365 makes iShot and other Mac utilities for screenshots, scrolling captures, annotation and recording.
- Think & Capture / Whiteboards & mind maps
iThoughts
iThoughts is a whiteboard and mind mapping tool covering mindmap, available on the web and Mac, Windows and iOS.
- Think & Capture / Notes & knowledge bases
IVGraph
IVGraph adds an interactive 3D graph view to Notion, showing pages, backlinks and database relations as a connected map.
- Think & Capture / Read-later & research
ivySCI
ivySCI organizes papers and PDFs and connects AI tools such as Claude and Cursor through MCP to search research databases.
- Think & Capture / Notes & knowledge bases
IWE
IWE is a Mac app and editor plugin for Markdown notes that lets you and AI coding agents share one knowledge base.
- Think & Capture / Read-later & research
JabRef
JabRef is a free, open-source reference manager for collecting and organizing research sources and citations.
- Think & Capture / Read-later & research
JClub
JClub turns the newest papers from the journals you follow into cards you swipe through on iOS and Android.
- Think & Capture / Whiteboards & mind maps
Jeda.ai
Jeda.ai is an AI whiteboard that generates mind maps, flowcharts, and business frameworks on one canvas using several AI models.
- Think & Capture / Notes & knowledge bases
Jeejee
Jeejee is a notes app combining Markdown, LaTeX, handwriting and PDF annotation for class notes and lab reports.
- Think & Capture / Notes & knowledge bases
Jetfold
Jetfold is a native Mac notes app that works on a folder of plain Markdown files while hiding the markup.
- Think & Capture / Notes & knowledge bases
Joplin
Joplin is an open source note taking app that syncs notes securely between desktop and mobile devices.
- Think & Capture / Notes & knowledge bases
Jot
Jot is a Mac notes inbox that captures text with a keystroke and saves it as a plain Markdown file.
- Think & Capture / Notes & knowledge bases
Jotaid
Jotaid is a Mac and iPhone notes app that maps notes into a concept graph to reveal connections between ideas.
- Think & Capture / Notes & knowledge bases
JotBox
JotBox is a local-first scratchpad for iPhone, iPad and Mac that opens a blank draft for quick notes.