Notes

Openreads is the best app for keeping track of your books that is free, open source, with no ads and no tracking! It is a reading list app that will help you organize your library with four lists provided: books you finished, books you are currently reading, books you want to read later, books you didn't finish. You can also use custom tags and filter through them. Openreads supports adding a book by looking it up in the Open Library database, scanning its barcode or entering the book's details manually. You can also view some cool statistics!

Explore a comprehensive note-taking application that seamlessly integrates with the widely acclaimed Emacs package - Org Roam, while implementing the powerful Zettelkasten approach. Effortlessly capture, organize, and explore your thoughts, research, and ideas using the Zettelkasten-inspired, dynamic networked thinking within this user-friendly app.

Orgro is an Org Mode file editor and viewer that brings essential Org features to mobile: - TODO and checkbox toggling, with progress cookies - Quick actions to start a new Org doc or go straight to your most important one - Notifications for Org Agenda items - Narrow, search, and filter your document just like in Emacs - Org Crypt section symmetric decryption/encryption - Org Cite bibliography support - Syntax highlighting, beautiful tables, LaTeX rendering - Expand or collapse sections, blocks, and drawers - Reflowed text for easy viewing on mobile Note: INTERNET permission is required for displaying remote images and dynamically loading fonts from online sources (Google Fonts, AWS S3). Notification- and execution-related permissions required for Org Agenda notifications and background updating of agenda.

Orgzly Revived is an outliner for taking notes and managing to-do lists. You can keep notebooks stored in plain-text and have them synchronized with a directory on your mobile device, SD card or over WebDAV. Notebooks are saved in Org mode's file format. “Org mode is for keeping notes, maintaining TODO lists, planning projects, and authoring documents with a fast and effective plain-text system.” See orgmode.org for more information. Features: * Create, edit and delete notes and tasks * Collapse and expand sub-notes * Schedule tasks and set their deadlines * Set priorities and tags for notes * Fling notes left or right to open quick-menus * Search notes by various properties * Create and save searches for quick access * Synchronize notebooks with one or more directories Orgzly Revived is a community fork of the app Orgzly.

Orion Viewer is pdf, djvu, xps, cbz and tiff file viewer for Android devices based on mupdf and DjVuLibre libraries. Application features: Outline navigation Bookmarks support Page navigation by screen taps + Tap Zones + Key binding Text selection Single word selection by double tap with translation in external dictionary Custom zoom Custom manual and auto border crop Portrait/landscape orientation Support different navigation patterns inside page (left to right, right to left) External Dictionaries support Built-in file manager with recently opened file view

PDF Inspector opens a PDF and shows what is actually inside it. Like a browser's developer tools, it parses each page's content stream into a navigable tree of elements (text blocks, vector paths and images) so you can find any single element, select it on the page or in the tree, and edit it. Edits go to a saved copy; your original file is never touched. Highlights: * DevTools-style element tree: every page is parsed into a structured tree of text, path and image nodes, grouped the way the PDF draws them. Switch between friendly labels and the raw content-stream operators. * Two-way selection: tap an element on the page or tap its row in the tree, and the other side highlights to match, with a clear bordered outline on the canvas. * Edit in place: move and resize an element, recolor its fill or stroke (entered as hex, with the element's color space shown), and retype text. When the original font lacks a character, re-encode the line with a fallback font, bundled or taken from your device or imported. Changes are written straight back into the content stream, with full undo and redo. * Surgical delete: remove exactly the element you picked by rewriting just its part of the content stream, leaving the rest of the page untouched. * Save a copy: write your edited PDF to a new file through the system file picker; the source document is left unchanged. * Smooth viewing: pan and pinch-zoom, fit to width or height, a global zoom that carries across pages, and a full-screen mode. * Dockable inspector: the inspector panel docks to the side in landscape or the bottom in portrait, can be resized, and can be made transparent to see the page through it. * Material You: Material 3 design with dynamic color on Android 12+, light / dark / system themes and a choice of accent colors. Private and open: * Open source, no accounts, no telemetry. * No network access and no storage permission: files are opened and saved through Android's Storage Access Framework, so the app only ever touches the documents you explicitly pick. PDF Inspector works with the drawing primitives a PDF already contains: select, move, resize, recolor, retype and delete them. It is not a word-processor-style text editor, so lines do not reflow, but when the original font is missing a character you can re-encode the text with a fallback font, bundled or taken from your device or imported.

An app that is fully open source. This app is a simple to use PDF Wallet. That means it takes over the task of storing and displaying your most important PDF certificates. It includes a convenient fullscreen barcode rendering, if a barcode is present in the PDF. Brief Instruction - Open "PDF Wallet" - Import PDF - Done Alternative Brief Instruction - Go to your file browser, email, web browser or PDF reader app - Open/Share the PDF with "PDF Wallet" - Done Description A very simple app that does nothing more than conveniently store and display PDF certificates. You can use it for public transport tickets, bills, contracts, certificates and any other PDF file. The PDF file has to be imported into the app. Following that, the barcode is displayed in fullscreen, as well as the PDF document itself. That's already it. Currently supported barcode formats are: - Matrix (2D) codes: QR, Aztec, DataMatrix and PDF417 - Linear (1D) codes: UPC-A, UPC-E, EAN-8, EAN-13, CODE-39, CODE-93, CODE-128, ITF and Codabar More Features - Can detect and extract barcodes in PDFs - (Optional) fingerprint authentication - PDFs can be individually sorted and named - PDFs can be opened - PDFs can be shared from other apps - PDFs can be shared with other apps (indirectly allows printing) - Dark Mode support (document stays in original color) - Also supports password protected PDFs - Two different layouts to choose from The "Pro" version additionally brings (requires In-App Purchase): - Removes "Get Pro" banner on various screens - Assign tags to documents - Filter documents by tags - Option to invert document colors in dark mode - Option to force dark or light theme by overriding system settings - Option to show barcodes in half size Privacy This app values your privacy by being fully open source and working offline. No ads, no tracking. Issues This is a free-time project of a single developer. Therefore please understand that replies can take a little while.

PReVo is a portable version of Reta Vortaro (the free and libre Esperanto dictionary) for Android. It’s usable without Internet access and is quickly searched with the keyboard.

To-do list, notes, appointment book, diary, journal, and… alarm clock? All possible with one plaintext file per day. PTO brings a convenient editor and important additional functions. Features • Powerful text editor with undo/redo, autosave, and more. • Quickly take notes on the lockscreen, without unlocking your device. • Reminders for upcoming events (format: @12:34 -15m foobar) • Fast search through all pages. • Save and open links to other apps and webpages. • Uses no network connection. All content is local on the device. • Optional template for new pages. • Backup/import pages to/from ZIP file. • And more, see the help: https://gitlab.com/ferreum/pto/-/blob/master/app/src/main/assets/help.md Origin This is a (now distant) fork of billthefarmer's Diary: https://github.com/billthefarmer/diary PTO has a lot of internal and UI changes. It focuses on usage as a general organizer instead of a Diary, though it can still be used as such, if you don't need the removed features. Most notably the markdown view has been removed, so no inline media can be displayed. See the help file for more differences: https://gitlab.com/ferreum/pto/-/blob/master/app/src/main/assets/help.md#origin

Padland is a tool to manage, share, remember and read collaborative documents based on the Etherpad technology in Android.

Looking for a simple and efficient notes app? Look no further! With Page, taking notes has never been easier. This app is designed to provide you with a minimalistic, single-page experience where you can quickly jot down your thoughts, ideas, to-do lists, or anything else you need to remember. Key Features: - One-Page Simplicity: Focus on your thoughts without any distractions. All your notes are on one single page, making it easy to access and update. - Effortless Sharing: Share your notes with friends, family, or colleagues in just a few taps. Perfect for quick reminders or sharing ideas. - Clean and User-Friendly Interface: The intuitive design ensures a seamless experience, allowing you to focus on what matters most: your notes!

PageTurner allows you to grab little moments of reading time, always, everywhere. Read a bit on your phone while you're waiting for the bus. Read a bit more at home in bed on your tablet. Have the app read to you while you drive or work out… all seamlessly synchronized. You just open the app and it takes you to the place you left off, no matter which device you are reading on. * Cloud synchronization for reading progress * Integrates with Calibre content server (or other OPDS/Stanza sources) * Search OPDS / Stanza catalogs * Buy books from Smashwords directly from the app. * Animated page flips by tapping/swiping/volume buttons/d-pad * Auto-scroll with rolling blind and timed page changes * Library to organize the books on your device. * Day / night mode with configurable colour schemes * Renders tables for use in text / tech books * Detects installed file managers and integrates with them * Brightness controls * Orientation locking * Whitespace stripping * Installable to SD Card

Paper lets you manage all your important notes with ease. It gives you all your notes right at your fingertips. Using its search bar allows you to find notes even in large collections.Features:Minimal and Aesthetic UILight and Dark ThemeCreate and Edit NotesSearch and Find NotesSave Notes for LaterDelete Notes

PaperKnife+ is a privacy-first PDF utility for Android that works 100% offline. Features: - Merge & Split: Combine PDFs or extract pages visually - Secure: Add or remove passwords (100% locally) - Convert: Convert Images to PDF and Export PDF pages as Images (ZIP) - Edit: Rotate and Rearrange pages with ease - And more! No internet permission, no trackers, zero servers. All processing happens on your device. Built with Jetpack Compose and Kotlin for a modern, smooth experience.

Using this app requires access to running a Paperless-ng*x instance. * View and search documents * Add, delete or edit documents * Share, download, print and preview your documents * Manage correspondents, document types, tags and storage paths * Scan and upload documents with preset correspondent, document type, tags and creation date * Review and quickly process newly added documents in the inbox * Secure your data with biometric authentication * Support for mTLS (client certificates) * Seamless switching between different accounts and instances * Modern, intuitive UI built according to the Material Design 3 specification * Light and dark theme * Support for dynamic color (Android 12+ only) * Available in English, German, French, Spanish, Catalan, Polish, Czech, Russian and Turkish language with more to come

I like using extremely refined scanning apps such as Office Lens for documents. Paperless Share adds Paperless to the Android share sheet for easy consumption. It's similar in spirit to TripleCamel. This app requires a paperless-ng server instance, which you can host yourself for free.

Displays Passbook (*.pkpass) files & shows the Barcode (QR, PDF417 and AZTEC format). It can be used also when offline. This app is a viewer for passes - a pass could be a e.g. boarding-pass for your next flight, a coupon for a nice hot beverage on the destination, a movie ticket, a membership card - there are a lot of possibilities. Basically it is a replacement for a piece of paper or plastic you would normally have to carry with you - so lets save some trees and reduce waste! How does it work? There are so called espass or pkpass files - you can open them with this app - e.g. when you receive them via email or get an Download-option. The most important content is the BarCode ( QR , AZTEC & PDF417which authorizes you most of the time - but it also has other interesting content like a description - often a time ( that you now can add to your calendar ) - often also locations ( to give you directions ) - just try It out! The app is offline usable once you downloaded the pass!

Android E-Reader App for Reading Pepper & Carrot Webcomic, an Open-source (CC-BY 4.0) comic made by David Revoy.

You can write personal log entries defined by a custom template. Each entry is saved in a plaintext file. So they can easily synchronized via Syncthing or Nextcloud.

Pinnit lets you create, manage and pin your notes to your notification panel.Easy to useOne tap to pin, one tap to edit, one swipe to delete. Doesn't get simpler than that.Dark modeEven if your phone doesn't support dark mode, we do! You can toggle it right from the homepage.

This browser app adds Mandarin Pinyin, or Cantonese, Teochew or Wenzhou pronunciation guides, to any Chinese website or EPUB file or to the clipboard, to help people who are learning Chinese to read articles. You can also tap on any word to see an English translation of that word. Changing the website's layout to add Pinyin is not perfect (some websites work better than others), but it still works a lot of the time. For privacy, this app does NOT use any third-party server to fetch or process your text: pinyin is added by your device only. This also means you must be able to fetch the article via your own network connection, or provide the text yourself, before this app can show it. Can integrate with Pleco or Hanping. Has 3lines mode (if you must), Bookmarks, Highlighting and PDF export, Change text size across all pages, Dark mode. Lightweight and some features work on very old devices too.

Pitak (पिटक) is a single-user, local-first app for managing a personal book library. It tracks the books you own, who has borrowed them, and a wishlist of books you want — all on your device, with no account and no developer server. The name comes from the Buddhist canon (the Tipiṭaka, the "three baskets"). Pitak is built for home libraries, community lending shelves, and anyone who wants to know where their books are. PRIVATE BY DESIGN * Fully offline and local-first. There is no developer backend, no analytics, no telemetry, and the app never "phones home." * Your borrower and loan records are encrypted at rest and gated behind your device biometric / PIN. * The only network access is for things you explicitly start yourself: looking up a book by ISBN, or publishing your own catalogue to your own GitHub account. Nothing is sent anywhere else. * No advertising. No tracking. No required sign-up. FEATURES * Library — catalogue the books you own, by ISBN barcode scan or manual entry. Bilingual titles (native script plus optional transliteration). * Wishlist — keep a "want to buy" list, scan or type entries, export it. * Borrowers and loans — record who has which book, with lent and due dates. This data is encrypted and unlocked with your biometric. * Covers — fetch cover art automatically, or set your own with the camera or gallery (images are downscaled on device). * Backup and restore — encrypted, portable backups you control, protected by a passphrase you set. * Export and publish — export to JSON or CSV, or publish a self-contained web page of your library to your own GitHub Pages, with no third-party dependencies. * Community libraries — share and merge book lists with other Pitak users by exchanging a file or scanning a QR code, in person. No server involved. THIS IS THE F-DROID EDITION This build contains no proprietary Google libraries. Barcode and QR scanning use ZXing; cover capture uses the system camera and an open-source cropper. There is no ML Kit and no Google Play Services dependency. Pitak is free software, licensed under the GNU General Public License v3.0 or later.

Play NotePad: Organize Your Life in Style Stay on top of your personal and professional life with Play NotePad, a feature-rich note-taking app designed for efficiency. MAIN FEATURES * Effortless Note Taking: Create and edit text notes, attach photos and drawings, or record audio for on-the-go capture. * Enhanced Organization: Categorize notes with labels, set reminders for deadlines, and prioritize tasks with pinning. * Visual Appeal: Personalize your note backgrounds with colors and images, and choose between list or column view for easy navigation. * Offline Access: Never lose your notes, even without an internet connection. * Seamless Collaboration: Share notes via email or messaging for effective teamwork. Play NotePad is more than just a notepad - it's your essential companion for managing and organizing your notes in style. Source code: http://github.com/mshdabiola/notepad

Pocket ReadLex is a portable version of the Read Lexicon which is a spelling dictionary for the