ProductCool - Discover the Best Innovative Tools & Daily Products

Stem Splitter AI separates vocals, drums, bass, and instruments from any song online. Create karaoke or custom backing tracks in minutes with no signup.

Stop sending API secrets to the cloud. 🛑 Meet Xplorer: The secure, 100% local-first API client. It runs your existing Postman collections instantly—ZERO migration needed. 🔒 No Cloud Sync 👤 No Accounts Required 🚫 No Telemetry ⚡️ Core Features Perpetually Free. Built for enterprise teams who need an "escape hatch" from cloud-forced tools. Your data stays on your machine. Period.

Melo is a local-first workspace built around a single canvas. Instead of switching between tools, everything lives together. Notes, tasks, websites, documents, calendar, and AI chat are all arranged in one place, how you want. The difference is context. The AI can see your entire board, so it understands what you are working on without constant re-explanation. Melo is designed to replace the scattered setup most people rely on and give you one workspace that adapts to how you think.

Modly is a desktop application that uses local AI to create 3D meshes from your photos or text prompts. It solves the problem of privacy, cost, and cloud dependency by running entirely on your own NVIDIA GPU, keeping your data secure and generations unlimited. It's for 3D artists, game developers, and creators who need quick, private, and high-quality 3D assets ready for tools like Blender, Unity, or Unreal Engine.

The Composer MCP Server gives Claude AI the power to backtest investment ideas and execute automated trading strategies. Trade across stocks, ETFs, and crypto directly in Claude.

cvoice.ai is a comprehensive AI-driven text-to-speech platform offering over 20,000 unique character voices from anime, gaming, and pop culture for free.

DeepGEMM is a clean and efficient BLAS kernel library optimized for GPU execution. It solves the performance bottleneck in linear algebra operations for deep learning and scientific computing by providing highly optimized matrix multiplication primitives. This library is designed for developers and researchers working on GPU-accelerated applications who require maximum computational throughput and efficiency.

Rea is a platform that uses AI agents to reverse engineer software, from high-level application behavior down to low-level native binaries. It solves the problem of understanding complex, undocumented, or legacy systems by automating the analysis process. This tool is designed for security researchers, software engineers, and developers who need to comprehend, audit, or modernize existing codebases.

Free desktop app for reviewing Git branches and GitHub PRs. Comment on any line and keep comments private until you publish. Add AI reviewers with your own models: OpenAI, Anthropic, Gemini, OpenRouter or local via Ollama. Split the review across a team of models, see exactly which rules each one checked, and retry only what was missed. Open source (MIT), no account, for Mac, Windows and Linux.

ruOS is a private cloud desktop with an AI team built in. Ask for research, writing or code and the agents (Claude Code, Codex, ruflo swarms) do it while you watch or step away. Opens in any browser on Mac, iPad or Chromebook, nothing to install. Files and AI memory persist across devices. Power users get a real Linux box plus an MCP server, so ChatGPT or Claude can drive it. Try ruOS Lite free in seconds, no sign-up.

No single model wins every task. Aster intelligently routes work across models: aster-code for coding agents and technical tasks; aster-work for custom agents, workflows and general work. Paid, prepaid usage. Originally launched September 23, 2026; this is Aster's separate Product Hunt appearance.

Answering Etsy buyer messages eats hours. Customer Service AI turns each one into seconds: type a short note and it writes a polished, friendly reply in your shop's voice, using the order details - right inside Etsy's reply box. A to-do list keeps every buyer you still owe an answer organized, and a memory of your shop keeps your answers consistent and professional. Nothing is sent until you press Send. 30 free replies.

Upload a PDF, snap a handout, or add a lecture recording. Lecta turns your material into quiz matches and races you can play with friends. In Formula Race, correct answers make your car faster. Study solo with notes, quizzes, flashcards, and an AI tutor. Available on iPhone in English and Japanese, with a free plan. Web version coming soon.

Haptiker turns the edges of your Mac trackpad into sliders. Right edge: volume. Left: display brightness, external monitors too on Apple Silicon. Top: keyboard light. Haptic ticks, and scrolling works as before. 7-day free trial, then one payment.

Banger brings automated Journeys, campaigns, product emails, mailboxes, and customer replies into one platform your AI can operate. Turn signups into active users, recover abandoned carts, and bring customers back. Your AI builds branded workflows, tests and translates emails, and answers replies from the same chat. Review and edit everything in the web app. Run it from ChatGPT, Claude, or other AI apps. Start free with 100 emails a day, unlimited contacts, and unlimited mailboxes.

CodeCrab is a native desktop app that reviews Pull Requests in seconds using your local CLIs. 100% client-side — your code never leaves your machine.

iphone-use gives an AI agent a real iPhone: the screen as text, tap, type and scroll over WebDriverAgent, with an honest answer for every action (applied, not sent, or unknown). Payment apps that block screenshots come back as a wireframe. A task done once becomes a flow that replays with no model. HTTP API, a 21-tool MCP server for Claude Code, and remote control from a browser or iOS app. Open source, MIT.

A Mac menu-bar app that keeps your Mac awake while Claude Code, Codex, Gemini CLI or Cursor work, then lets it sleep. Free. Pro keeps it awake with the lid closed and wakes it when a Claude Code usage limit resets.

Scumble is a free, open-source desktop editor for AI inpainting. Select part of a picture, say what belongs there, and the result lands as its own colour-matched layer. Runs on your own ComfyUI or your own API keys: FLUX 3, GPT Image, Nano Banana and more.

Instead of one form per company, Ghostifier starts from your inbox. It finds who holds your data, unsubscribes you and opts you out of sale and sharing on day one, waits out the return window, then sends deletion requests and tracks every reply. Banks, insurers and your employer are left alone. It also asks data brokers to delete you. Gmail access is headers only, so it never reads your email bodies, and there is no AI: every decision follows fixed rules.

Track how your brand appears across AI search, see which AI platforms are sending traffic to your website, and uncover opportunities to improve your visibility. Ranktune combines AI visibility monitoring, citation tracking, referral traffic analytics, and content optimization in one platform.

Meet Doco - an expressive Android companion for focus, music and everyday moments, with an optional Windows desktop visitor. Everyday mode is playful and warm; Focus mode cuts the noise with a little friendly sarcasm. Fully animated, zero setup. Connect Spotify and Doco plays music that fits the moment, staying close to your taste with room for something new. Add your own Gemini API key for camera-based reactions and AI captions. Pre-launch - join the waitlist at getdoco.app.

Put an AI support agent on your website with one script tag. It answers from the content your site already publishes, so when you update a page, the answers update too. Set the name, color, greeting, and a few suggested questions. When the agent can't help, the visitor leaves an email and the question. You get the email. They get a confirmation. Try Leo answering questions about Cosmic, then activate your own: https://www.cosmicjs.com/ai/support-agent

Ari Helper 7 is a private AI assistant for iPhone, iPad, Mac and Apple Watch. New since the last launch: Photo Studio (heal, repair, denoise, colorize, upscale 4x, on device and inside Photos), Film Studio for shot-by-shot films and video clean-up, a live camera you can ask questions, on-device image generation, and your own OpenAI-compatible servers. Apple Intelligence, Gemma 4 or cloud keys you own. One $24.99 purchase, no subscription.

Notch Radio turns your MacBook's notch into a live radio. Hover it and it morphs into a full player with album art, real track titles and transport controls. Move away and it folds back into the hardware. Thousands of stations from the Radio Browser directory. Free for ever with five stations. One payment unlocks the rest: $9.99 at launch until 19 October, then $19.99. Nothing renews. No account, no analytics, no server. A notch is not required.

Appto is an iOS app factory for your Mac. It finds a niche where apps already make money, comes up with the app, designs and codes it, builds the App Store page with screenshots and ASO copy in every language, fills in App Store Connect and sends it to Apple when you say go. After launch it shows every sale live, answers reviews, tracks keywords and suggests fixes. It runs on your Claude Code or Codex plan, so there are no token bills. I'm not a developer and shipped 10 apps with it.

A small island where AI characters live on their own, day and night. Nobody plays them and nobody writes their lines. They get cold, remember yesterday, look for each other and want things their world doesn't have yet. When they find the words, they ask. Sometimes the world answers: fire, a lantern, a canoe for the open sea. Every request is public, in their own words. One of their days lasts 24 of our minutes. You can't talk to them, only watch.