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pdfgrep is a free command-line tool that searches for patterns in PDF files and prints matching lines. It aims to be mostly compatible with GNU grep, supporting options such as -r, -i, -n, and -c, with extended regular expressions by default and page rather than line numbering for -n.
PDFResizer is a free suite of online PDF tools that runs in the browser. It offers resizing, merging, splitting, cropping, rotating, compressing, and converting PDFs, along with reordering and deleting pages, adding page numbers, N-up printing, password protection and removal, image extraction, repair, form filling, and grayscale conversion. The site states that no software installation or registration is required.
PeaZip is a free, open-source file archiver utility for Windows, macOS and Linux. It opens and extracts RAR, TAR and ZIP archives and supports more than 200 formats. The software is built on 7-Zip, Zstandard, FreeArc, Brotli and PAQ compressor technologies. It adds two-factor authentication with a password and keyfile for formats supporting encryption, and it is natively portable.
PeaZip is an open source cross-platform archive manager for Linux, macOS and Windows, offered as a freeware alternative to WinRar, WinZip and similar utilities. It creates, opens and extracts 7z, rar, tar and zip files and many more archive formats. Precompiled DMG packages are available for Darwin and macOS, built for Apple Silicon and Intel architecture.
Pelican is a static site generator powered by Python that requires no database or server-side logic. It builds static sites from reStructuredText or Markdown content, supports themes using Jinja2 templates, generates Atom and RSS feeds, and is extensible through a plugin ecosystem.
, a pluggable architecture for data and image processing, which can.
The Phoenix Open Data Portal is the City of Phoenix's site for exploring city datasets, organized into groups such as transportation, public safety, and general government. It also hosts dashboards, including performance, homelessness, sustainability, and police use-of-force views. External datasets from the US Census, Department of Housing, and Bureau of Labor Statistics are linked.
A custom OSINT search tool for investigating national and international telephone numbers. It checks whether a phone number appears in different formats via search engines, with fields for users to fill in. Using the tools redirects to external search engines and websites.
Photon is an RSS/Atom reader focused on speed and usability, designed as a terminal-based viewer with image support via sixel. It is extensible with Lua plugins and can use OpenCL for image scaling. Photon does not include features for adding or managing feeds; feed URLs are supplied via command-line arguments, text files, or external commands.
Machine Learning library for PHP. Algorithms, Cross Validation, Neural Network, Preprocessing, Feature Extraction and much more in one library.
Pi is a terminal-based minimal coding agent harness built to adapt to user workflows rather than requiring users to adjust their processes. It supports 15+ providers and hundreds of models, offers tree-structured shareable interaction history, context engineering features, and four operation modes: interactive, print/JSON, RPC, and SDK. Users can customize Pi with extensions, skills, prompt templates, and themes, and share customizations as packages via npm or git. It is installable via curl, PowerShell, npm, pnpm, or bun.
Pi-hole is a network-wide ad blocker installed in one place so every device on a network is protected. It runs in Docker or on a supported Linux distribution and is used as a DNS server, with a web interface, built-in DHCP server, group management and allow/deny domain rules. Pairing it with a VPN extends protection on mobile data and public Wi-Fi.
Pika offers self-contained AI creative tools for video, image and sound work. Tools include Video Studio for generating clips up to a 30-second multi-shot video, Color Grade for adjusting color and contrast, Extend Video for lengthening clips with extra frames, and Pika Soundtrack for scoring clips. Character Studio, Image Studio and Product Shot support image creation and editing. Support is available for the web, the iOS app and the API.
Pilko Studio is a local in-browser video screenshot extraction tool. It supports interval, manual and automatic frame capture with timestamps, and offers configuration options including JPEG and WEBP quality adjustment, video trimming, cropping, timecode or overlay addition, and framerate override for exported screenshot frames.
Pitch is a collaborative presentation platform for teams to create, share and deliver presentations. Slides can be created from a prompt, and the Free plan offers 100 AI credits, unlimited presentations, custom templates, basic sharing links and two external guests.
Pixso is a cloud-based UI/UX design and prototyping tool with AI capabilities. It enables teams to create user interface designs, build interactive prototypes, and collaborate on components, feedback, and developer handoff within a single workspace. Additional features include whiteboarding, presentation creation, design system management, and plugin extensions. Desktop versions are available for Windows and Mac.
The Plant Organelles Database 3 (PODB3) is a specialized database project on organelle dynamics, function, biogenesis, differentiation, movement and interactions. It consists of six parts, including an Electron Micrograph Database, a Perceptive Organelles Database, an Organelles Movie Database, an Organellome Database, a Functional Analysis Database and external links. Data and protocols come from submissions by plant researchers. Data are free only to non-profit institutions, universities and colleges.
PlayAnyPage is a free browser bookmarklet that turns any webpage into playable arcade games, including Brickout, Page Raiders, Snake, Whack the Page and Page Taxi. Users drag the bookmarklet to the bookmark bar once, then click it on any page to play, with no extension or installation required.
Playnite is an open source video game library manager that aims to provide a unified interface for all games. It links games from services such as Steam, Epic, Origin, GOG, Battle.net and Ubisoft Connect, and supports console emulators. Its appearance can be customized with themes, and plugins and script extensions extend its functionality. It runs from portable storage and stores library information locally.
Plotly's Python graphing library is a free, open-source library for building interactive, publication-quality charts and graphs. It supports chart types including line plots, scatter plots, bar charts, error bars, box plots, histograms, heatmaps, subplots, multiple-axes, polar charts, and bubble charts. The source is available on GitHub.
A page listing third-party plugins that extend the DeaDBeeF music player with new features. It gives install instructions for GNU/Linux, Windows and macOS and notes that, unless stated otherwise, the listed plugins were not made by DeaDBeeF developers.
PocketBase is an open-source backend tool distributed as a single file. It includes a realtime database, user authentication, file storage, and an admin dashboard. It can be used as a standalone application or extended via Go and JavaScript hooks, and integrates with common frontend development stacks.
The polyglot notebook with first-class Scala support.
PopUpOFF is a non-commercial, open-source browser extension that removes popups, overlays and cookie notifications. It offers aggressive, moderate and delicate modes, plus an experimental Anti-paid feature. Information is stored locally and the project states it uses no tracking or analytics.
