Cohort
A web-based 3D breadboard editor and simulator for building and exploring electronic circuits.
Helps developers review GitHub pull requests one focused diff at a time, with code context and Claude features.
Offers free browser tools and desktop apps for price comparisons, PC upgrades, game deals, and media creation.
Helps importers, e-commerce sellers, and cross-border buyers look up tariff rates and estimate import costs by product or HS code.
Offers daily Bible puzzles and verses for people who want to engage with scripture through games.
An open-source Android app that blocks selected apps, browsers, and newly installed apps until you enter a lock code.
A public report audits what popular MCP servers do at startup for developers evaluating their behavior.
A scrolling tiling window manager helps Mac users organize app windows across an endless horizontal strip.
Creates layered ASCII-style artwork from images using web fonts and exports it as HTML or PNG.
Helps families collect photos, videos, funny words, and voice notes into a record of a child growing up.
Runs a modular POSIX-like userspace with a compiler and applications inside a browser tab.
Tracks how AI platforms recommend businesses and generates content to improve their visibility.
Monitors mentions across social platforms and the web, then labels them to help teams find and respond to relevant posts.
Provides browser-based tools for inspecting payment card data, EMV, cryptography, and smart-card formats.
Curates YouTube videos recommended by Hacker News users.
Turns articles and text into speech on the user's device, with a private listening library in the browser.
Helps people find nearby beaches and compare swimming conditions, forecasts, and visitor reports.
An Android app that helps people manage social media and game screen time with timers and gradual grayscale effects.
A browser-based school for practicing beatmatching and training your ears.
A private journaling app that guides users through a daily grimdark adventure and stores notes locally.
Records and shares screen videos stored in a user's own Cloudflare account, with pay-as-you-go storage costs.
Provides digital health teams with an FHIR backend, device integrations, and alert evaluation for remote monitoring apps.
A Mac app that finds duplicate and similar photos in folders and photo catalogs for review and cleanup.
Provides walkthroughs and achievement guides for Say Cheese games, a board-game solver, and playable browser puzzles.
An interactive data story examining cybersecurity coverage in the October 2026 Hacker News archives.
A searchable directory of books mentioned in Hacker News comments, ranked by how many people mention them.
A free browser-based multiplayer space shooter for playing solo or with friends on phones and desktops.
Compresses JPEG, PNG, WebP, and GIF images in the browser without uploading them.
Helps people find places to live within their commute to New York City using public transit travel times.
An interactive word-based world where users create, evolve, and experiment with creatures and text classifiers.
Generates shareable, downloadable Suprematist-style art compositions in a browser.
A Chrome extension that helps people with ADHD refocus through gentle nudges and game-like rewards.
A desktop terminal manager for organizing and monitoring coding-agent sessions on macOS and Windows.
Turns typed messages into full-screen signs for pickups, events, classrooms, and conversations.
Lets people send maintainers packets of instant coffee with a personal note while keeping shipping details private.
Helps organizations inspect AI agent traffic, control spending, mask sensitive data, and review risky actions.
A daily trivia game where players answer questions for high stakes.
Compares the sourced carbon footprints of everyday items and estimates how changes affect yearly emissions.
Orchestrates on-demand data pipelines with upgrades and incremental processing.
Provides sports clubs, academies, and federations with tools for team management, athlete monitoring, video analysis, and scoring.
Provides interactive renewable energy dashboards and downloadable datasets for exploring generation and electricity markets.
A private photo and short-video sharing app for connecting with friends and family.
Connects AI agents to report spam calls and texts and compare reports to identify patterns.
Books shared rides, private cabs, rentals, goods transport and ambulances across Telangana and Andhra Pradesh.
Coordinates AI coding agents across devices using live join-code sessions.
An open-source charting library for trading apps, with charts, order entry, order flow, and price boards designed for coding agents.
Helps public officials describe government processes and claim projects using an agency email.
A local agent harness that checks tool calls and task reports for small language models.
Lets people celebrate Diwali in a browser by lighting diyas, setting off virtual crackers, and sharing wishes.
A directory of self-hosted, open-source alternatives to popular SaaS tools.
Helps traders and investors analyze markets, find stocks, build scans, and share watchlists and trade ideas.
Helps people find lost cats by sharing nearby reports and matching photos with AI.
An interactive guide teaches users how to operate and program the Roland AIRA Compact T-8 Beat Machine.
Helps campers estimate battery runtime and energy needs for appliances and power stations.
Lets users search and explore arXiv papers shared on Hacker News and rank them by commenter activity.
A catalog for discovering films and documentaries recommended in Hacker News discussions.
Catalogs blogs frequently shared on Hacker News, with filters for topics, popularity, and activity.
A curated, community-voted directory of websites built around “X but for Y” ideas.
Provides private, browser-based video calls with chat, screen sharing, and on-device effects without requiring an account or app.
A browser-based space simulation where players operate automated spacecraft through terminal or graphical controls.
Provides Linux system call tables, calling conventions, and JSON data across architectures for developers.
An interactive educational publication explaining complex topics through detailed, illustrated chapters.
A local AI platform and SDK for adding open-weight language models to web games and apps.
A daily game where players guess five Wikipedia articles from their infoboxes.
An open-source framework for building deterministic AI agent workflows with typed fields and visual workflow tools.
A public index tracks how close AI is to building and maintaining quality software with little human help.
A browser-based geography game where players connect Atlantic and Pacific states using a deck of state cards.
A marketplace where freelancers, companies, and recruiters find projects, services, and talent.
A token-themed incremental game inspired by Universal Paperclips.
A swipeable feed for browsing Hacker News stories that adapts to your interests.
Evaluates shopping agents by scoring their carts against grocery tasks, budgets, and household constraints.
Abstracts commercial leases and reviews real estate deal documents inside ChatGPT and Claude.
Explores congressional members, bills, and votes, and answers questions about their records with cited sources.
An edge operational intelligence engine for Linux systems.
Provides runtime validation, loop detection, and circuit breaking for multi-agent AI systems.
A daily word puzzle where players find words in a shared letter grid and compare scores.
Compares analytical database benchmark results in a leaderboard and detailed comparison interface.
Provides developers with tools for sending, routing, and inspecting email through SMTP, NATS, and webhooks.
Provides an interactive 3D aquarium to feed and customize in a browser, on mobile devices, and as a Windows screensaver or wallpaper.
Helps architecture studios manage client workspaces, share drawings, and collect payments for documents.
A Mac voice assistant for developers that lets them dictate to AI coding agents and hear spoken responses.
Applies a VHS camcorder effect to live camera footage, photos, and uploaded videos in the browser.
A digital hub connecting brands, agencies, and creators to VIVIO’s influencer marketing platform and services.
A hosted platform for building organizations of AI agents that coordinate on work under human oversight.
Lets residents explore neighborhood 311 reports by ZIP with maps, complaint rankings, and share cards.
A directory of sites that collect books, videos, tools, products, and Wikipedia articles shared on Hacker News.
Shows repository deployment status across environments using GitHub Actions and AWS Amplify data.
Browser games and a private trial help people experience how AI coding agents can drift from instructions.
Provides agents with frequently updated, source-linked context on AI and other topics.
Lets people guide an AI coding agent by voice on a shared computer and watch its work live.
Builds Java projects from module-info.java or an existing pom.xml without a separate build script.
Keeps software engineering plans, architecture decisions, work-session findings, and verification evidence available to teams and coding agents.
A searchable archive of official election results across national, state, and local races.
Provides persistent, isolated cloud Chrome sessions that AI agents can automate and resume.
Provides browser-based tools for converting, editing, inspecting, and recording audio files locally.