1,249 tools and products — trending open source, and what gets used in AI and other work.
AuthBridge is an Indian background-verification and identity-services company that provides employee background screening, identity verification, KYC and compliance solutions for enterprises and hiring organisations.
Envoy is a cloud-native, high-performance edge, middle, and service proxy hosted by the Cloud Native Computing Foundation (CNCF). In the cited AI-agent security setup, it validates inbound tokens before requests reach agent code.
Istio is an open-source service mesh for integrating microservices, managing traffic, enforcing policies, and collecting telemetry with few or no service-code changes. Its control plane, Istiod, provides service discovery, configuration, and certificate management, while Envoy proxies handle service traffic and provide routing, circuit breaking, policy enforcement, and telemetry. In Ambient mesh mode, the Rust-based Ztunnel data-plane proxy provides secure connectivity and observability without sidecar proxies; the videos describe this mode as providing encrypted, mutually authenticated networking between agents and tools.
Every Door Direct Mail (EDDM) is a United States Postal Service (USPS) marketing service that lets businesses and individuals send non-addressed advertising mail to every household or business within selected postal routes or geographic areas without using a recipient mailing list. It is intended for bulk, non-personalized mailings such as flyers, menus, and promotional postcards and can be targeted by ZIP Code, carrier route, or neighborhood.
Uline is an American distributor of shipping, packaging, and industrial supplies, founded in 1980 by Richard and Elizabeth Uihlein. The company sells tens of thousands of products — including shipping boxes, packing materials, janitorial and warehouse supplies — via a catalog and its online store and is headquartered in Pleasant Prairie, Wisconsin.
Whalesync is a data synchronization platform that provides two-way syncing between databases and productivity apps. It connects sources such as PostgreSQL, Airtable, Notion and others to keep records synchronized across systems for application backends and operational workflows.
Mangools is a suite of SEO tools that provides keyword research, rank tracking, backlink analysis, and competitor insights. The service is offered via a web-based platform with subscription plans for marketers and website owners.
An open-source monster-catching terminal game that runs alongside Claude Code sessions. Prompts submitted to Claude Code become in-game steps, allowing players to battle, catch, and level up creatures while an AI coding agent works.
authentik is an open-source, self-hosted identity provider for modern single sign-on and identity management. It supports SAML, OAuth2/OIDC, LDAP, and RADIUS, and can be deployed with Docker Compose for small or test setups, Kubernetes via a Helm chart for larger clusters, or official AWS CloudFormation templates and a DigitalOcean Marketplace app. The project also offers an enterprise edition for large-scale identity management.
Plezy is an open-source cross-platform client for Plex, Jellyfin, and Emby, built with Flutter for desktop, mobile, and TV. It provides library, collection, playlist, watchlist, recommendation, and cross-server search views, along with media playback supporting direct play or transcoding, HDR and Dolby Vision, multiple codecs, customizable subtitles, playback progress synchronization, and external players. The client also supports music playback, offline downloads, live TV and DVR, synchronized watching, and integrations with services including Trakt, MyAnimeList, AniList, Simkl, and Seerr.
Torph is a dependency-free animated text morphing web component for React, Vue, Svelte, and vanilla JavaScript. Its TextMorph component transitions between strings and supports physics-based spring easing configured with parameters such as stiffness and damping. The package is installable through pnpm and is documented in the project's repository.
PDF Inspector is an open-source Rust library by Firecrawl for classifying PDF documents and extracting position-aware text without OCR. It samples content streams to classify documents as text-based, scanned, image-based, or mixed, returns confidence scores and per-page OCR-routing information, and detects broken font encodings. Its extractor uses font information and X/Y coordinates to determine reading order, including multi-column and right-to-left layouts, and converts content to Markdown with headings, lists, code blocks, tables, formatting, links, and page breaks. Native Rust and CLI consumers can opt into selective OCR for pages that need it; the Python and Node.js bindings can run the same workflow, while browser WebAssembly provides local parsing without a server round trip. The project also supports CID font decoding and shares a single parsed document between classification and extraction.
StepShot is a macOS application that records workflows and (optionally) uses AI to generate polished step-by-step guides, standard operating procedures (SOPs), and training documentation. It can export outputs as PDF, Markdown, or HTML.
PowerShell is a cross-platform task automation and configuration management framework developed by Microsoft, providing a command-line shell, scripting language, and a set of cmdlets. It was originally Windows-only and was later open-sourced and re-released as PowerShell Core (now PowerShell 7) for Windows, macOS, and Linux. The project is maintained by Microsoft and hosted on GitHub.
Claude Sonnet 4 is a large language model developed by Anthropic for generating and analyzing text and code. It can be used for software-development tasks, including turning structured task lists into website implementations.
Lighthouse is an open-source automated auditing tool developed by the Google Chrome team that analyzes web pages for performance, accessibility, progressive web apps, SEO, and other best practices. It is available as a Chrome DevTools feature, a Node module/CLI, and a standalone report generator.
Costco Wholesale Corporation is an American multinational membership-only warehouse club founded in 1983 by James Sinegal and Jeffrey H. Brotman and headquartered in Issaquah, Washington. It operates a chain of membership warehouses selling groceries, appliances, and bulk goods and is one of the world's largest retailers by revenue.
Ace Hardware is an American retail cooperative of independently owned hardware stores that operate under the Ace brand and sell tools, home improvement, lawn and garden, and related products. The organization is a retailer-owned cooperative headquartered in Oak Brook, Illinois and operates an online storefront at its official website.
Chess.com is an online chess platform and community operated by Chess.com, Inc., founded in 2005. It provides live and correspondence play, lessons, puzzles, computer opponents, news and tournaments, and reports a user base of over 250 million members.
Gambit Poker is a free online poker platform that lets users play with friends or bots, review hands, and compete in daily tournaments and leaderboards. The service is presented at gambit.com and emphasizes learning and social play.
OpenSearch is a community-driven, Apache 2.0-licensed open-source search and analytics suite for ingesting, searching, visualizing, and analyzing data. Its capabilities include vector search, enterprise and document search, observability and log analysis, security analytics, anomaly detection, and machine-learning and AI tools. In the cited OpenRAG pipeline, OpenSearch serves as the vector-search and vector-store component.
Apache Spark is a unified analytics engine for large-scale data processing, developed as an Apache project. It provides high-level APIs in Scala, Java, Python, and R, and executes general computation graphs for data analysis. Its higher-level components include Spark SQL and DataFrames, the pandas API on Spark, MLlib for machine learning, GraphX for graph processing, and Structured Streaming for stream processing. Spark can run locally or submit workloads to clusters through Spark, YARN, or Kubernetes integrations, and is used in large-scale data pipelines such as those underlying Poolside's model factory.
LinkedIn Ads is LinkedIn's advertising platform, operated by LinkedIn (a subsidiary of Microsoft). It enables businesses to create and manage paid campaigns and target ads to professional audiences through LinkedIn's Campaign Manager and Marketing Solutions.
DealMachine is a real estate lead generation and marketing platform for property investors. It provides property and owner data, mobile 'driving for dollars' tools, owner contact and direct-mail features, skip-tracing and lead management/CRM functionality.
A marketplace platform that connects owners and managers of furnished rental properties with midterm tenants seeking stays of weeks to several months. Targets traveling professionals such as travel nurses and other workers needing furnished, short-to-medium-term housing and advertises available furnished units to that audience.
Cloudflare R2 is Cloudflare's object and file storage service, providing an S3-compatible API for storing and serving large objects and uploaded files. It is a low-latency storage option integrated with Cloudflare's network and developer platform and is used by self-hosted screenshot-sharing software to store uploads.
Lemon Squeezy is a commerce platform for selling digital products and subscriptions, aimed primarily at software companies. It provides payment processing, subscription billing, licensing, tax/VAT handling and storefront/customer management.
Dodo Payments is a merchant-of-record and subscription billing platform for digital products and software. It manages subscription lifecycles, payments, refunds, and disputes, and provides the resulting transaction and customer data for analytics and integrations.
Bitcoin is a decentralized, open-source digital currency and peer-to-peer payment protocol first described by Satoshi Nakamoto and launched in 2009. It enables transfer of value without a central authority using a public blockchain and proof-of-work consensus.
Knockoff is a browser extension that filters pseudo-brand listings from Amazon search results by hiding, dimming, or labeling them. It runs locally in a content script and resolves each listing's brand against user allowlists and blocklists, bundled lists of flagged and established brands, and name heuristics for patterns such as all-caps strings, unusual consonant runs, non-English letter pairs, non-Latin characters, and irregular capitalization. The extension supports Chrome, Firefox, and Safari; the public repository is a frozen, fully local snapshot with no accounts, tracking, or network requests, while maintained auto-updating versions are distributed through browser extension stores.
Sunbelt Rentals is an equipment and tool rental company that provides rental and related services for construction, industrial, and specialty equipment. The company operates a network of over 950 locations and advertises more than 14,000 types of equipment available for rent via its website.
Jolt Physics is an open-source, multicore-friendly C++ rigid-body physics and collision-detection library for games and VR applications. It simulates rigid bodies with continuous collision detection across shapes such as spheres, boxes, capsules, convex hulls, meshes, and terrain; supports constraints including fixed, hinge, slider, gear, pulley, spline, and six-degrees-of-freedom joints; and provides ray casting, shape queries, broad-phase detection, sensors, vehicles, ragdolls, soft bodies, and buoyancy. Its design supports concurrent physics-data access, background loading and unloading of bodies, collision queries running alongside simulation, and deterministic simulation by replicating inputs. The project also provides bindings for several languages.
Neverclick is a Windows desktop application for performing mouse actions from the keyboard in any application. Its local computer-vision system detects user-interface elements from raw screen pixels, labels them with letter hints, and lets users position a click target within each element. It supports window and full-screen modes, keyboard-based window switching, single and multi-selection of hints, path selection, scrolling, moving windows, and configurable tools, actions, hotkeys, and key-priority mappings through a graphical interface. An alternative Clairvoyance mode uses operating-system accessibility APIs to find interface elements and works only on the foreground window.
Krbn, pronounced “Carbon,” is an open-source TypeScript web engine for non-photorealistic, pencil-style rendering of 3D scenes to SVG. It is intended for abstract and technical scenes, with medical and organic illustration described as a future direction. Rather than rendering surfaces as pixels, Krbn derives, classifies, and styles strokes from geometry. Its analytic primitives produce exact silhouettes such as conics and the true quartic of a torus; hidden lines are split into visible and ghosted runs; intersections are solved using low-degree polynomial roots; and triangle meshes pass through the same rendering pipeline. Hatching provides shading and transparency through stroke density and direction, including curvature-following patterns such as sphere parallels and meridians, torus loops, and streamlines on arbitrary meshes. Scene semantics such as importance, focus, and role guide what the engine draws, ghosts, or abstracts. The pipeline includes hidden-line visibility, suggestive contours, hand-drawn wobble, and variable-width strokes. Wobble is seeded from stable stroke identities so animated camera movements do not cause the lines to boil between frames, and the project aims to emit deterministic, byte-identical SVG on a given platform. It supports scene and animation construction through an API, with examples including STL and OBJ imports and an animated camera orbit. Krbn is MIT-licensed.
Domain SDK is an open-source TypeScript library by OpenCore for managing customer-owned custom domains through a single server-side API. It adds hostnames to an existing hosting platform, returns the exact routing, ownership, and certificate DNS records required by customers, tracks provider-authoritative verification and certificate status, and supports safe removal. The SDK normalizes domain lifecycle operations including adding, reading, listing, verifying, and removing domains. It provides idempotent operations, retry-aware errors, sequential polling with timeouts and cancellation, callbacks, provider backoff, and an isolated in-memory testing adapter. Adapters are provided for Vercel, Cloudflare for SaaS, Railway, Render, Netlify, and bunny.net; a subdomain client can scope tenant-chosen labels under a parent domain. It is server-side only and requires Node.js 20+ or Bun. The package is distributed under the MIT license.
Albato is an embedded integration platform (iPaaS) that enables SaaS products to add and white‑label native integrations and automated workflows. The service advertises support for 1,000+ integrations and features targeted support for integrations used by AI agents. It is operated from albato.com.
Ventorah is a browser-based computational fluid dynamics (CFD) platform that runs virtual wind-tunnel aerodynamic analyses in the cloud. Users can upload 3D models and obtain streamlines, pressure fields, and lift and drag metrics through a web interface.
Inbix is an open-source, Cloudflare-native email API platform that provides REST APIs, SDKs and an MCP for generating inboxes, receiving emails, and building email automation. It is distributed as an open-source project aimed at developers building mail-handling workflows.
DaVinci Resolve is a professional video editing, color correction, visual effects, and audio post-production application developed by Blackmagic Design. It combines nonlinear editing, the DaVinci color grading tools, Fusion visual effects, and Fairlight audio tools in a single program. The software is available in a feature-limited free version and a paid Studio edition.
Higgsfield AI is an AI-native creative suite from Higgsfield that generates images, videos, and synthetic voice from text prompts or reference media, and provides editing and upscaling tools. It includes an AI agent to automate creative workflows and is accessible via web and mobile; it accepts text and media inputs and produces image, video and audio outputs.
spdlog is a fast C++ logging library developed as a header-only or compiled library for C++11 and later. It uses the fmt library for formatting and supports single- and multithreaded loggers, optional asynchronous logging, custom patterns, runtime and compile-time log levels, and loading log levels from command-line arguments or environment variables. Its logging targets include colored console output, basic, rotating, and daily log files, syslog, the Windows event log and debugger, and Qt widgets; custom targets can also be added. A backtrace facility stores debug messages in a ring buffer for later display. The project supports Linux, BSD and other Unix-like systems, Windows, macOS, Android, and distribution through several system and C++ package managers.
Dear ImGui is a self-contained, immediate-mode graphical user interface library for C++ developed for programmer-facing tools rather than typical end-user applications. Programs call UI functions each frame so the interface reflects live application state, making it suited to game-engine tooling, content-creation tools, visualization and debugging interfaces, real-time 3D applications, and embedded or fullscreen software. The library generates optimized vertex buffers that applications can render through their own 3D pipeline. Its core consists of platform-agnostic C++ source and header files that can be compiled directly into an existing project; platform and graphics API backends are provided separately, and custom backends can be used wherever textured triangles can be rendered. It is renderer-agnostic, portable, and has no external dependencies. Dear ImGui is distributed under a free, permissive license. The project emphasizes minimal state synchronization, setup, and maintenance, but does not provide some features common in higher-level GUI libraries, including full internationalization and accessibility support.
The Temporal TypeScript SDK is an open-source framework for authoring workflows and activities in TypeScript or JavaScript against Temporal's distributed orchestration engine. Temporal executes asynchronous, long-running business logic with durable state and recovery across failures, while the SDK provides client packages for starting and interacting with workflows and worker packages for running workflows, activities, and Nexus Operations. Worker-level execution uses Node-specific capabilities including native modules, worker threads, virtual-machine isolation for the workflow sandbox, AsyncLocalStorage, and async hooks. The repository distributes the SDK as version-aligned @temporalio/* packages and officially supports Node.js 20, 22, and 24; alternative server-side JavaScript runtimes may work for some client features but are not officially supported for workers.
Pumpkin is an open-source Minecraft server written entirely in Rust. It is designed for fast, efficient, customizable hosting, using multithreading and adhering to vanilla game mechanics. The project targets Java Edition and Bedrock Edition clients, although Bedrock support is marked as a work in progress. It provides configuration through TOML and implements Minecraft protocol features including encryption, packet compression, server status and ping, world loading and saving, chunk generation, entity spawning, player movement, inventories, combat, commands, permissions, chat, and plugin support. It also supports RCON, queries, and proxy systems including BungeeCord, BungeeGuard, and Velocity. Pumpkin is under heavy development. The server is licensed under GPLv3; its plugin APIs are dual-licensed under MIT or Apache-2.0.
Catch2 is an open-source, C++-native unit testing framework for unit tests, test-driven development (TDD), and behavior-driven development (BDD). It uses readable test names, assertions written as ordinary C++ boolean expressions, and sections for localized sharing of setup and teardown code. It also provides simple BDD macros and basic microbenchmarking; benchmarks are opt-in rather than run by default. Catch2 v3 is distributed as a normal library with multiple headers and separately compiled implementation, while the v2.x branch provides the previous major version and C++11 support.
ReUI is a free, open-source React component library for the shadcn/ui ecosystem, developed by Keenthemes. It provides more than 1,000 copy-and-own registry examples across 71 categories, presented in realistic dashboard layouts rather than isolated demos, including data grids, filters, timelines, steppers, trees, calendars, kanban boards, and other interface blocks. The components are composed from shadcn/ui primitives and Tailwind CSS, with 19 custom in-house component types. Its Data Grid uses TanStack Table and virtualization and supports features such as drag-and-drop, pinning, resizing, and infinite scrolling. The in-house components have both Radix UI and Base UI versions and are distributed as TypeScript source through the registry rather than as an npm package, allowing the source to be copied into a React project. ReUI is released under the MIT License.
A macOS power-management app that automatically manages Mac power usage and charging. It measures power-saving actions locally, limits charging to 80% to reduce battery wear, and learns when to fully charge the battery before the user disconnects the Mac.
GeoLibre is a free, open-source, cloud-native GIS platform for visualizing, exploring, and analyzing geospatial data. It supports GeoParquet, GeoPackage, and shapefile layers, with live styling, attribute tables, saved projects, plugins, and an optional Python package for use in Jupyter notebooks. The same workspace runs in web browsers, native desktop apps, mobile apps, and Jupyter notebooks while keeping data local. Its browser-based geoprocessing tools run through WebAssembly without a server or data leaving the machine. The project is built with Tauri v2, React, TypeScript, MapLibre GL JS, DuckDB-WASM Spatial, and deck.gl, and also provides R and Python packages plus installers and mobile distribution.
bitchat is a decentralized peer-to-peer messaging app with two transport layers: Bluetooth mesh for offline communication and the Nostr protocol for internet-based messaging. It does not require accounts, phone numbers, or central servers. The app discovers nearby peers over Bluetooth LE and can relay messages across a mesh network for up to seven hops, automatically falling back to Nostr relays when internet connectivity is available. It supports location-based channels using geohash coordinates, IRC-style commands, and end-to-end encrypted private messages using the Noise Protocol on the mesh and BitChat private envelopes over Nostr. The project also documents message compression, battery-saving modes, and an emergency data-wipe gesture. The repository provides native iOS and macOS support and links to App Store and Play Store distributions. It is released into the public domain. The README notes that nearby radios can observe a persistent per-device identifier derived from the identity key, despite the app requiring no account or phone number.
Box3D is an open-source 3D physics engine for games, written in portable C17. It provides rigid-body simulation with collision detection, continuous collision detection, contact events, convex hulls, capsules, spheres, triangle meshes, height fields, multiple shapes per body, collision filtering, ray and shape casts, overlap queries, sensors, and a character mover. Its physics system includes a robust Soft Step rigid-body solver, continuous physics, island-based sleeping, and revolute, prismatic, distance, motor, weld, and wheel joints with limits, motors, springs, friction, and force events. The data-oriented system uses multithreading and SSE2 or Neon SIMD, supports cross-platform determinism and recording and replay, and is optimized for large piles of bodies. The core library has no dependencies beyond the C runtime and libm on Unix, can be integrated with CMake as the box3d::box3d target, and builds on Windows, Linux, macOS, and WebAssembly; its samples use sokol and Dear ImGui.
Native SDK is an open-source toolkit for building native desktop applications. It uses declarative markup in `.native` files for views, plain TypeScript compiled to native code at build time or Zig for application logic, and an engine that renders directly into real operating-system windows without a browser, WebView, or JavaScript runtime in the application binary. The CLI can scaffold, run, check, and build applications, with live view updates during development and an optimized release-binary build. Its component catalog includes controls such as buttons, tabs, text fields, dialogs, charts, and virtual lists, while styling is organized around replaceable design tokens. The toolkit also includes an embedded automation server for agents.
mise is an open-source command-line tool for managing development tools, environment variables, and project tasks from a single mise.toml configuration file. It installs and switches between tools such as Node.js, Python, CMake, Terraform, Go, and jq, and prepares the configured environment before commands run. Project-specific environment variables can include values from .env files, while tasks define commands and dependencies for activities such as building, testing, linting, validation, and deployment.
Guava is a set of core Java libraries developed by Google. It adds collection types such as multimaps and multisets, immutable collections, a graph library, and utilities for concurrency, I/O, hashing, primitives, strings, and related tasks. The distribution provides separate JRE and Android flavors. The JRE flavor requires JDK 1.8 or higher; both flavors are published as Maven artifacts under the com.google.guava group ID with the guava artifact ID, and can also be added through Gradle. APIs marked with @Beta may change or be removed, while non-beta APIs are intended to remain binary-compatible.
npmx.dev is an open-source web frontend for browsing the npm registry, developed as a fast, modern alternative interface rather than a replacement for the registry. It provides package search and details, README and metadata views, source-code browsing with syntax highlighting and line permalinks, generated API documentation when available, version diffs, changelogs, publish timelines, package comparisons, and shareable URL-driven views. It also surfaces dependency and package-health information such as outdated dependencies, OSV vulnerability warnings, provenance indicators, license and install-script warnings, install size including transitive dependencies, download statistics, repository signals, and JSR availability. The interface supports dark and light modes, localization across dozens of locales including right-to-left languages, keyboard workflows, screen readers, and package, team, and organization administration through the local npm CLI.
Ladybird is an independent open-source web browser developed around its own web-standards-based engine rather than an existing browser engine. Its multi-process architecture separates the main user interface, WebContent renderer processes, image decoding, and network requests; each tab has its own sandboxed renderer, while image decoding and network connections run out of process. The project is pre-alpha and intended for developers, with builds for Linux, macOS, Windows through WSL2, and other Unix-like systems. It is licensed under the 2-clause BSD license.
Nimbus is an open-source documentation-site scaffolder by Cloudflare that builds Astro sites directly in a repository. It writes layouts, components, styles, routes, content collections, and theme tokens as editable source files, while its plumbing is provided through npm packages. The generated sites include agent-readable Markdown and MDX page twins, llms.txt and llms-full.txt files, JSON-LD, sitemaps, robots.txt, per-page Open Graph images, full-text search, theming, accessible navigation, and optional versioned documentation. Nimbus also provides a registry for adding editable components, utilities, and agent-handoff recipes to an existing project. Sites produce static output for deployment anywhere, with Cloudflare as a first-class target, and include prose, structure, MDX, and configuration validation. The project is built on Astro, Sätteri, Tailwind, and optionally React; its README describes it as work in progress and pre-1.0.
Drawesome is a drawing toolbar and canvas component for React applications. It provides seven pen types—pencil, pen, brush, fineliner, highlighter, fountain pen, and another configurable pen tool—that vary stroke width according to movement speed or direction, plus an eraser that removes areas of strokes rather than deleting whole strokes. The React component supports configurable tools, colors, sizes, opacity, toolbar placement, appearance, controls, themes, tooltips, keyboard shortcuts, and initial or externally managed strokes. Drawings can be exported as SVG or PNG, downloaded directly, or accessed as stroke data through its ref methods. It is installed with npm, requires React 18 or later as a peer dependency, and has no runtime dependency beyond React.
Let's Seal is an open standard, reference implementation, and free service for proving that a file is unaltered, existed by a certain date, and was sealed by a specific certificate. It preserves native signature formats such as PAdES/X.509 signatures for PDFs and uses OpenTimestamps to anchor time to Bitcoin. Each seal is also recorded in an append-only transparency log with a Bitcoin-anchored root, allowing independent auditing. The project provides a hosted web app, the `sealbot` command-line tool, a REST API and SDKs, and a self-hosted engine with its own certificate authority; verification is available online or offline without an account. The repository states that the engine, SDKs, and standard are open source under the Apache-2.0 license.
Snowflow is a real-time procedural snow-rendering demonstration built with WebGPU, Babylon.js, and hand-written WGSL. It generates terrain, snow deformation, procedural characters, inverse-kinematics foot placement, cloth, surf wakes, water spells, atmosphere, and post-processing at load time without textures, meshes, HDRIs, or animation assets. Its terrain uses a nested-ring geometry clipmap whose vertex shader performs world placement, level-of-detail morphing, and displacement. Layered gradient noise produces the underlying heightfield, while a persistent GPU terrain-state buffer handles additive deformation through scrolling, relaxation, and splatting in a ping-ponged full-screen pass. The demo also provides GPU snow shading, cascaded PCSS shadows, procedural character and cloth systems, and in-browser settings, performance, and debug views. It requires a WebGPU-capable desktop browser and a discrete or recent integrated GPU; it intentionally has no WebGL fallback.
SpinWin is a macOS menubar utility that visually rotates or continuously spins another app’s window without private APIs or disabling System Integrity Protection. It hides the selected window off-screen through the Accessibility API, captures its contents with ScreenCaptureKit, and displays the frames in a transparent, borderless overlay whose CALayer transform applies preset 90-degree rotations, arbitrary angles, or continuous spinning. The overlay is sized to the rotated content’s bounding box to avoid clipping and can be dragged or freely rotated. It requires Screen Recording and Accessibility permissions; the overlay is a live, non-interactive picture, and the project notes limitations involving Mission Control, off-screen rendering throttling, and windows that resize themselves.