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.
1,447 tools · A to Z, so position is not a ranking
- Screenshots & capture
ScreenVerb
ScreenVerb is a Mac screenshot and annotation app that is free to start, with a one-time Pro upgrade for Mac, iPhone and iPad.
- Read-later & research
Screvi
Screvi collects Kindle, Kobo and Apple Books highlights plus saved articles and newsletters, and resurfaces them in a daily review.
- Notes & knowledge bases
ScribblePad
ScribblePad is a free note app for Apple devices with Apple Pencil handwriting, PDF annotation and on-device handwriting search.
- Whiteboards & mind maps
Scribe Animator
Scribe Animator is an explainer animation studio for creating whiteboard videos with screen recording, local voiceover and AI help.
- Read-later & research
Scrible
Scrible is a research platform for annotating web pages and organizing sources for school and work.
- Whiteboards & mind maps
Scrintal
Scrintal is a visual note-taking tool where researchers and students link notes on a canvas, with an AI research helper.
- Screenshots & capture
Scrnli
Scrnli is a Chrome extension for taking screenshots, recording the screen and converting videos.
- Screenshots & capture
Scrollie
Scrollie turns iPhone screen recordings into clean long screenshots for capturing long conversations and pages.
- Screenshots & capture
ScrollShot
ScrollShot records a scroll and stitches the frames into one long full-page screenshot, also joining photos into a single image.
- Screenshots & capture
ScrollSnap
ScrollSnap converts a scrolling screen recording into one long screenshot, processed on your device and saved to your library.
- Whiteboards & mind maps
Scrumlr
Scrumlr is an open source online retrospective board for agile teams to run and collaborate on retros.
- Notes & knowledge bases
Second Brain
Second Brain is a local-first iOS app where you capture thoughts by text or voice and AI classifies and organizes them.
- Read-later & research
Seconded
Seconded saves links from Chrome, Firefox, Safari and iOS into one searchable list so articles and ideas are not lost.
- Notes & knowledge bases
Secret Notes
Secret Notes is a free encrypted Android notepad with PIN protection, no ads and no tracking.
- Notes & knowledge bases
Secure Notes
Secure Notes is a notes app that locks entries with Face ID or a passcode and keeps encrypted backups.
- Read-later & research
Semantic Scholar
Semantic Scholar is a free research tool that uses AI to help scholars search and understand scientific literature.
- Read-later & research
SereneReader
SereneReader is a native feed reader for iPhone, iPad, Mac and Apple Watch with a calm reading layout.
- Notes & knowledge bases
Serious Notebook
Serious Notebook is a private offline notebook for Apple Pencil handwriting and sketches on iPad, with typed notes on iPhone.
- Notes & knowledge bases
Seven
Seven is an iPhone second brain app for saving links, photos, notes and reels in one place with automatic tagging.
- Read-later & research
Shaarli
Shaarli is a self-hosted bookmarking tool for saving, tagging and sharing links without a database.
- Screenshots & capture
ShadowClip
ShadowClip detects names, faces, card numbers and API keys in screenshots on Mac and iPhone so you can redact them before sharing.
- Screenshots & capture
ShareX
ShareX is a free open-source Windows tool that captures or records your screen and shares it with one shortcut.
- Read-later & research
Sharly
Sharly is an AI assistant that summarizes, compares and checks sources across documents for individuals and teams.
- Notes & knowledge bases
Shokonotes
Shokonotes finds and reads Markdown notes kept as plain files in a folder, on Mac and iPhone.
- Read-later & research
Shorty
Shorty AI summarizes any YouTube video into timestamped key points in many languages without sign-up.
- Screenshots & capture
Shotomatic
Shotomatic automates taking screenshots on a Mac, with unlimited captures per session and a one-time Pro license.
- Screenshots & capture
ShotPost
ShotPost builds App Store screenshots and preview videos directly on the iPhone that recorded them, using ready-made templates.
- Screenshots & capture
Shotsnapp
Shotsnapp creates device mockup images from app screenshots or designs for presentations and stores.
- Screenshots & capture
Shottr
Shottr is a small Mac screenshot app with scrolling capture, text recognition, annotation and measuring tools.
- Screenshots & capture
Shotty
Shotty is a Mac menu bar app that gives fast access to your recent screenshots so you can drag or share them.
- Screenshots & capture
shotwell
Shotwell wraps iPhone screenshots in device frames and adds backgrounds and shadows, all done on the phone.
- Notes & knowledge bases
ShoutWiki
ShoutWiki hosts free wikis built on MediaWiki so anyone can start a community or personal wiki.
- Screenshots & capture
Show Shot
Show Shot freezes the screen on a shortcut so you can pick an area, window or text, annotate it and send it on.
- Screenshots & capture
Shutter
Shutter is a screenshot program for Linux that captures windows, regions or the whole screen and offers editing and upload options.
- Screenshots & capture
ShutterDock
ShutterDock is a fast macOS screenshot and screen recording tool with hot corner capture and a lifetime Pro unlock.
- Read-later & research
Sidebox
Sidebox saves pages from the phone share menu so you can open them later on any device, including in a browser.
- Notes & knowledge bases
SideNotes
SideNotes keeps notes, tasks, links and snippets at the edge of the Mac screen so users can capture without switching apps.
- Read-later & research
Sift Science
SIFT reads and ranks new scientific papers against your research interests and filters out the rest so you see what matters.
- Screenshots & capture
SilkySnip
SilkySnip pins screenshots above other windows, adds annotations and extracts text with local OCR on Mac and Windows.
- Notes & knowledge bases
SilverBullet
SilverBullet is an open-source Markdown note-taking tool that starts from a local folder of notes and can be extended with scripts.
- Screenshots & capture
SilverFast
SilverFast is scanner software for digitizing and editing photos, slides, negatives, and film strips, with a free trial.
- Whiteboards & mind maps
Simple Diagrams
Simple Diagrams is a native Mac app for quickly drawing hand-drawn style flowcharts and process diagrams with shape libraries.
- Screenshots & capture
Simple Screenshot
Simple Screenshot is a Mac menubar app that captures screenshots and saves them to a chosen folder or the clipboard.
- Notes & knowledge bases
Simple Sticky Notes
Simple Sticky Notes is a free Windows desktop app for jotting down sticky notes and reminders on the screen.
- Notes & knowledge bases
Simple Text Notes
Simple Text Notes is a minimal plain-text notes app for iPhone, iPad and Mac with automatic iCloud sync.
- Whiteboards & mind maps
SimpleMind
SimpleMind is a cross-platform mind mapping app, sold as a one-time purchase per platform, for organizing thoughts and ideas.
- Notes & knowledge bases
Simplenote
Simplenote is a free, lightweight notes app that syncs across iOS, Android, Mac, Windows, Linux and the web.
- Screenshots & capture
SimpleTex
SimpleTex lets users snip or upload an image of a formula and returns the LaTeX code.