Think & Capture
1,447 verified tools in 4 sections. Pick a section, search, or filter by free plan and country.
Capture ideas, organize notes and build a searchable knowledge base. Explore note-taking apps, whiteboards, research tools and screen capture software.
438 tools · A to Z, so position is not a ranking
- Read-later & research
ChatPDF
ChatPDF lets you upload a PDF and ask questions about it, getting summaries and answers drawn from the document.
- Read-later & research
Citation Styles
Citation Styles is a mobile bibliography manager for organizing the citations of academic papers quickly and simply.
- Read-later & research
Cite This For Me
Cite This For Me is a tool that generates citations and bibliographies in Harvard, APA and MLA formats.
- Notes & knowledge bases
cl1p
Cl1p.net is a simple online clipboard for sending text between internet connected devices through a short custom URL.
- Whiteboards & mind maps
Classroomscreen
Classroomscreen is an online board for teachers with timers, random pickers, drawing and other widgets to run a lesson.
- Read-later & research
ClawCast
ClawCast converts the newsletters and writers you follow into a short morning podcast read by AI voices.
- Screenshots & capture
Cleanmock
CleanMock turns screenshots into mockups inside device frames with custom backgrounds.
- Read-later & research
Clearly Reader
Clearly Reader is a reader mode extension offering text to speech, summaries, translation and custom themes for web articles.
- Read-later & research
Clippings.io
Clippings.io imports Kindle highlights and notes, lets people organize them and exports them to other apps.
- Screenshots & capture
CloudShots
CloudShots syncs screenshots between Mac, iPhone and iPad into one searchable history stored in your own iCloud.
- Whiteboards & mind maps
CloudSkew
CloudSkew is an online editor for flowcharts and cloud architecture diagrams including AWS, Azure and GCP.
- Notes & knowledge bases
Clover
Clover is a free iOS app for reading and writing notes in a self-hosted TriliumNext knowledge base, with offline access.
- Notes & knowledge bases
Cluing
Cluing captures snippets from webpages, PDFs, videos and posts to build a personal knowledge layer you can feed to AI.
- Whiteboards & mind maps
Coggle
Coggle is a collaborative mind mapping tool for making and sharing flowing maps, notes and diagrams.
- Notes & knowledge bases
Cohestry
Cohestry is a Mac and iPhone notes app that links related notes, imports Apple Notes and shows ideas in a 3D graph view.
- Notes & knowledge bases
Colanode
Colanode is a local-first team workspace that combines chat, notes, files and project pages, which teams can self-host or use hosted.
- Whiteboards & mind maps
Collaboard
Collaboard is an online whiteboard hosted in Germany for teams to brainstorm and plan together.
- Whiteboards & mind maps
Concepts
Concepts is a sketching app with an infinite canvas for drawing, taking notes and making mind maps on tablets and computers.
- Whiteboards & mind maps
CoordXYZ
CoordXYZ is an in-browser 3D mind map where each idea sits at its own coordinate, with AI helping to organize them.
- Notes & knowledge bases
Craft
Craft is a notes and documents app with tasks that syncs across Apple, Windows and web for personal and team use.
- Whiteboards & mind maps
Creately
Creately is a diagramming tool for org charts, process maps and cloud architecture with AI assistance.
- Screenshots & capture
CurlShot
CurlShot takes a screenshot of any web page from a pasted address and returns the full page as an image.
- Notes & knowledge bases
DailyWall
DailyWall turns the sticky notes you write into your iPhone Lock Screen wallpaper, updated automatically, with widgets.
- Read-later & research
Deepmark
Deepmark collects your bookmarks from the browser, X, Instagram and YouTube, describes each with AI and lets you search them naturally.
- Whiteboards & mind maps
DeepNotes
DeepNotes is an end-to-end encrypted infinite canvas tool with deeply nested pages and realtime collaboration for teams.
- Read-later & research
DevStash
DevStash saves articles, docs, Stack Overflow answers and code snippets in one place and uses AI to summarize and explain them.
- Notes & knowledge bases
Dexi
Dexi stores notes, bookmarks and feeds in one memory that Claude, ChatGPT and Gemini can use, free to start.
- Notes & knowledge bases
Dexio
Dexio is a wiki that AI agents such as Claude and ChatGPT share through MCP, which you can also read and edit.
- Whiteboards & mind maps
DM Flowchart Designer
DM Flowchart Designer draws a flowchart from a described process on Mac and iPad, with templates, swimlanes and AI.
- Notes & knowledge bases
Dnote
Dnote is a terminal-based note-taking tool with full-text search and an optional self-hosted sync server.
- Whiteboards & mind maps
draw.io
draw.io is a free diagramming tool for flowcharts and technical diagrams that stores files where the user chooses.
- Whiteboards & mind maps
Drawpile
Drawpile is a free, open-source drawing program that lets several people sketch on the same canvas.
- Read-later & research
Echo
Echo reads every link, post, video, screenshot and PDF you save on iPhone so you can find it later by describing it.
- Whiteboards & mind maps
Edraw AI
Edraw.AI is a visual platform for diagrams, mind maps and flowcharts with built-in AI tools.
- Whiteboards & mind maps
Edraw Mind
EdrawMind is mind mapping software for brainstorming, outlining and presenting, with collaboration across desktop and web.
- Notes & knowledge bases
Einfall
Einfall captures a passing thought instantly on Mac, iPhone and iPad so it can be sorted later.
- Read-later & research
Elink
elink is a content curation tool for saving links and turning them into newsletters, web pages and bio links.
- Read-later & research
Elytra
Elytra is a private reader for iPhone, iPad and Mac that follows blogs, news sites and YouTube channels.
- Read-later & research
Embark Reader
Embark Reader is a native Mac and iOS app for reading, organizing and tracking arXiv papers and linked code repositories.
- Notes & knowledge bases
Ember Notes
Ember Notes is an iPhone and iPad Markdown notes app with free iCloud sync, Face ID note lock and a prompt vault.
- Whiteboards & mind maps
Epic Pen
Epic Pen is a free screen pen for Windows that lets you draw and highlight over any app.
- Notes & knowledge bases
Etched
Etched is an iOS Markdown notes app that runs on device and finds your notes by meaning rather than exact keywords.
- Notes & knowledge bases
Evernote
Evernote is a note taking app for capturing notes, tasks and schedules in one place across devices.
- Whiteboards & mind maps
Explain Everything
Explain Everything is an online whiteboard for teachers that records video lessons and runs interactive sessions.
- Read-later & research
Explainpaper
Explainpaper lets you highlight confusing text in a research paper and get simple explanations.
- Notes & knowledge bases
Exporter
Exporter exports all your Apple Notes with attachments as Markdown or HTML files in one click, working offline.
- Screenshots & capture
Extract Text From Video
Extract Text From Video is a free app that scans an entire video or photo with OCR and copies the on-screen text.
- Read-later & research
Fabric
Fabric is a personal workspace that stores files, photos, notes and meetings with an AI that searches across them.