Provides free interactive quizzes for learning country flags, capitals, maps, shapes, currencies, and languages.

Provides filing-based stock research, including SEC fundamentals, restatements, insider trades, and institutional holdings.

An iPhone app records trips, maps streets you've explored, and helps you find new ones.

A native Mac terminal manager for supervising coding agents, shells, and development sessions.

Provides feature flags, remote configuration, logging controls, audit logs, and scheduled jobs for developers and small teams.

Checks a website’s SSL certificate validity and expiry, with ongoing monitoring available for domain owners.

Automates review requests and reputation management for businesses.

A browser game where players explore Lumon departments and complete activities inspired by the Severance series.

Blocks ads and trackers across iPhone and Android apps using on-device DNS filtering.

Lets readers compare AI-generated flash fiction and vote blindly for the better story.

Provides a unified API for accessing multiple web search providers in a standardized format.

Shows Hacker News comments scored for guideline violations and lets readers filter them by confidence.

A browser game where players encounter animals from natural-history plates and choose offerings or violence to survive a chain of encounters.

A collaborative document editor where people and AI agents create, review, and manage shared documents.

Lets people create games by chatting with AI, publish them, and play browser games made by the community.

Helps job seekers organize applications and resumes and connect their search data to AI tools.

A Rust terminal app for browsing Hacker News stories, comments, and users.

A browser-based editor for creating, validating, and sharing JSON Schemas and test payloads.

Provides copy-paste UI components and reactive primitives for SolidJS projects using Tailwind CSS v4.

Helps businesses collect supplier quotes, compare prices item by item, and approve purchases.

An interactive game lets players make decisions in realistic business scenarios and explore different jobs.

Publishes Mac guides, including advice on making scanned PDFs searchable.

Schedules AI agents to automate recurring work across connected tools for individuals and teams.

Helps couples combine relationship agreements into executable programs that AI agents can manage with human oversight.

Analyzes uploaded DNA data to show health-related genetic findings and supporting evidence.

Centralizes workspace context and controls AI agents for organizations.

A daily guessing game where players identify the country an artifact was stolen from.

Provides Git hosting that encrypts repositories locally before syncing them to its servers.

A 3D globe displays startups as towers sized by monthly recurring revenue and lets founders add or promote their companies.

Turns uploaded songs or YouTube links into music-box lullaby arrangements for bedtime.

Coordinates teams and AI agents working in parallel on the same codebase through a shared coding session and task board.

A browser-based game where players guess films from still frames in multiplayer or solo rounds.

Provides an MCP memory server that helps AI models and agents connect facts across their stored information.

Converts dates between calendars and explores cycles and historical events using a 364-day sacred calendar.

Coordinates plans, meetings, introductions, and recruiting between people's agents while humans approve decisions.

Provides centralized version control, code review, CI/CD, and issue tracking for software teams.

Compares text and documents in a browser, highlighting differences and letting users merge or export results.

Builds one-time-purchase software for self-directed practitioners, including a distraction-free meditation timer.

Suggests one small daily activity to help people find moments of joy.

A searchable directory of upcoming classical music concerts around the world.

Helps teams create branching roadmaps that preserve past plans and explain decisions, with updates synced from project trackers.

A writing app that helps writers revise drafts, compare paragraph versions, save cuts, and proofread text.

An interactive puzzle platform that helps software engineers learn technical concepts and prepare for interviews.

An interactive model that controls a speech synthesizer to mimic spoken audio for visitors.

Helps English speakers in Japan find registered doctors, lawyers, and other professionals.

Provides an OpenAI-compatible coding agent operated by a human instead of a model.

Helps job seekers create and improve ATS-aware resumes with AI writing, templates, and export tools.

A free directory that helps Northern Ireland community groups find and filter grants by location and eligibility.

A Minesweeper-style game where players mark eggs and shoot confirmed marks inside a minefield.

Provides developers with one API to connect wearable devices and receive users’ workout, sleep, and recovery data.

A community for GNU/Linux users in Birjand that organizes meetings and shares event materials.

An online Markdown editor and shared workspace for organizing notes and collaborating in real time.

Uses AI to reduce the green tint of TikTok matcha filters and restore more natural colors in photos.

Helps founders and builders find startup collaborators and coordinate work through sprints and shared tasks.

Tracks popular and changing projects across curated GitHub awesome lists.

Maps robotics companies, offices, and hiring locations across Europe for people exploring the industry.

An AI trading copilot for stock analysis, building screens, and understanding market trends.

Runs structured AI agents with stage-specific models, tools, and context budgets in a single binary.

Stores AI-generated files and apps as versioned pages that users can share or publish.

Checks pasted text for patterns associated with Claude Opus 5 or ChatGPT, entirely in the browser.

Provides APIs for AI agents and developers to screenshot, read, extract data from, crawl, and monitor web pages.

Helps developers save and organize useful insights from Claude Code, Codex, and pi sessions.

Shows Codex CLI, Claude Code, and Pi sessions in a floating panel on macOS.

Hosts and displays shareable, encrypted walkthroughs of code diffs for developers.

A browser-based chess roguelike where players collect relics and survive an ever-changing campaign.

A Slack app that manages fair team rotations for tasks like support triage, on-call handoffs, and standup facilitation.

A Chrome extension that mirrors tabs and tab groups across browser windows for people working in multiple windows.

A benchmark that tests how well AI models coach a lifter through a year of simulated training and life disruptions.

Turns Vite or Rsbuild projects into full-stack apps with typed server functions and deployable server bundles.

A CLI that generates realistic, schema-aware synthetic data for PostgreSQL databases.

Streams free internet radio stations and hand-picked playlists for listeners browsing by mood, genre, or country.

An interactive map of anonymized game prompts submitted to Rosebud AI, for exploring ideas and using them as starting points.

Tracks public outsourcing requests and budgets to help indie developers identify software demand.

A directory for comparing performance testing tools by features, licenses, deployment models, and status.

Plans daily outfits from a user's wardrobe, weather, calendar, and laundry status.

Helps professionals generate and revise drafts into clear, natural prose in a chosen style.

Encrypts and backs up photos and videos across devices for people who want private storage.

A desktop IDE lets developers direct coding agents while inspecting and editing their prompts, tool calls, and file changes.

Tests GPU health, stability, and performance for AI infrastructure running NVIDIA CUDA or AMD ROCm.

A local AI coding agent that helps developers understand and work with code repositories.

Hosts founder challenges, cohorts, community events, and a marketplace of deals for builders.

A self-hosted Git server for private and public repositories, built to run on Cloudflare Workers.

A football trivia game where players identify footballers from career clues in solo or multiplayer modes.

A desktop workspace for using local or cloud AI models to chat, code, and manage agent tasks in repositories.

Demonstrates behavioral biometrics by comparing typing patterns to identify who typed a passage.

A daily map game where players outline an area to match a target population and score their guess.

Helps students import flashcard sets and study them with quiz and learning modes.

A local macOS terminal for managing Claude Code and Codex sessions across projects.

A corpus of recorded desktop workflows and graded outcomes for labs working on computer-use tasks.

Provides persistent workspaces, disposable sandboxes, desktops, and phones for AI agents.

Tailors resumes and cover letters to job postings for job seekers using their real experience.