QOwnNotes is an open source markdown note-taking application for Linux, macOS and Windows that works together with Nextcloud Notes. Notes are stored as plain-text markdown files on the computer, and sync services such as Nextcloud can be used to sync notes across devices. It is described as a native application optimized for speed and low processor and memory use.
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QuestDB is an open-source time-series database engineered for low latency. It uses a column-oriented, time-partitioned storage engine with memory-mapped files and vectorized execution for high-throughput ingestion and millisecond-level analytical queries. SQL is extended with time-series operators such as SAMPLE BY, LATEST ON, ASOF JOIN, WINDOW JOIN and HORIZON JOIN.
Telegram link is a Telegram channel, bot, or group for updates, links, files, or community posts.
Quicksilver is a free, open-source macOS productivity application that enables users to launch apps, open files, and perform file and system actions via keyboard input. It offers hundreds of plugins to extend functionality, learns user habits to prioritize relevant actions, supports custom keyboard shortcuts and mouse gestures, and provides multiple customizable interface styles. The project is actively maintained by a community of developers.
Telegram link is a Telegram channel, group, or bot link for updates, files, community posts, or support.
RadiologyEducation.com is a digital library of radiology education resources. It collects links to lectures, textbooks, teaching files, anatomy atlases, clinical practice guidelines and patient education, organized by subspecialty including breast, chest, emergency, musculoskeletal and pediatric radiology. It also lists mobile apps, ebooks and podcasts.
RaiDrive mounts cloud storage services such as Google Drive, OneDrive, Dropbox, AWS, and Azure, as well as WebDAV, SFTP, and FTP, like a USB drive. Files can be opened, edited, and saved directly in Windows File Explorer or Linux file manager without syncing. A free Standard plan is available.
Raindrop.io is a bookmark manager for saving books, songs, articles and other items found while browsing. Collections group related bookmarks, tags and filters aid classification, and duplicates and broken links can be found. Files and pages can be backed up, and collections can be shared. Apps are available for browsers and mobile and desktop platforms. A free plan offers unlimited bookmarks, collections and devices, with a Pro plan adding further features.
RansomWhere? is a macOS utility that analyzes file entropy to identify encryption activity and detect untrusted processes creating encrypted files. It suspends suspect processes and alerts the user, who can allow or block them. It runs on macOS 10.15 and later.
Rapid Photo Downloader is free software released under the GNU GPL license. It downloads photos and videos from cameras, phones and memory cards, can download from multiple devices simultaneously, and backs up files as they are downloaded. It runs under Linux desktops and on the Windows Subsystem for Linux on Windows 11.
Rarebit is a free, open-source webcomic template built in HTML and vanilla JavaScript. It uses a single HTML page for all comic pages and offers toggleable navigation, per-page titles and author's notes, and an automatically updating archive. It supports splitting one comic page into multiple image files. The template requires no extensions and little coding experience.
Rarlab is the home of WinRAR and RAR archivers. WinRAR is an archive manager that can back up data, reduce the size of email attachments, open and unpack RAR, ZIP and other downloaded files, and create new RAR and ZIP archives. A trial version is available for download before purchase.
A self-hosted tool that searches many free book and audiobook sources at once, merges results into one ranked list, downloads files to the user's server and names and shelves each book. It is free and open source, and version 1.0 is a dockerised port of the former website.
RaveBSD is a self-hosted, free and open source search engine for free book and audiobook sources. It merges results from multiple sources into one ranked list, downloads files to the user's server, names and shelves books, and saves copies to devices.
Raw.pics.io is an in-browser viewer and converter for RAW image formats including CR2, NEF, ARW, ORF, PEF, RAF and DNG. It converts and edits RAW, PDF and JPG files into JPEG, PNG and other formats, with resizing, compression and pixel size changes available. All processing happens in the browser, and the service is free for the first five conversions without registration.
RawTherapee is a free, cross-platform raw image processing program released as Free Software under GPLv3. It is designed for developing raw files from a broad range of digital cameras and offers a non-destructive, 32-bit floating point processing engine with modern demosaicing algorithms. It is available for Linux, macOS, and Windows and in over 15 languages.
Telegram link is a Telegram channel, group, or bot link for updates, files, community posts, or support.
Rclone is a command-line program for managing files on cloud storage, described as an alternative to cloud vendors' web storage interfaces. It syncs directories between storage systems and supports over 70 cloud storage products, including S3 object stores and standard transfer protocols. It can mount local, cloud or virtual filesystems as a disk and is open-source software written in Go.
Rclonexbot is a Telegram bot that remotely transfers files from one cloud to another cloud using Rclone. The bot is launched through Telegram, with an updates channel and a support group referenced.
Telegram link is a Telegram link for updates, app posts, files, or community notices.
Telegram link is a Telegram link for updates, app posts, files, or community notices.
readme.so is an online tool that provides a markdown editor and pre-made templates to help users create readme files for their software projects. The platform is developed by Katherine Oelsner and simplifies the process of adding and customizing required sections for project readmes.
Readwok is a browser-based reader for online text and books. Users upload files such as epub, fb2 or txt and read them paragraph by paragraph, with modes including single paragraph and autoplay. An inline editor allows merging, adding or deleting text, and data syncs across devices.
Real-Debrid is an unrestricted downloader that lets users download files hosted on the Internet or stream them into a web player. It offers lower pricing than most file hosters and access to a wide range of hosters.