Peter Thiel said it best: “Good hackers find it unbearable to use bad tools.” After too many hackathons watching teams juggle Slack, Docs, Trello, and Discord, we realized context switching kills momentum. But another issue stood out too: contribution visibility. HackerDen brings your team’s chat, tasks, docs, and planning into one place — while making contributions visible and collaboration easier to evaluate fairly. Stay in flow. Ship faster.

LazyNote is a note-taking app for people who take notes in messaging apps. Instead of blank documents and nested folders, you get a timeline — a continuous stream where you just type and move on. It's timeline-first (notes flow like a chat, timestamped and scrollable), E2E encrypted (no one can read your notes), and cross-platform across iOS, Android, and Web. It also works fully offline with a local-first architecture. If you use Discord as your notebook, LazyNote was made for you.

Show HN: PromptForge – 8 AI tools at 2¢ each, no subscription forge402.app Writer, Polyglot (15+ languages), Analyzer, Optimizer, Code assistant, Resume builder, IdeaForge, SummaryPro. $0.02-$0.15 per use via x402 (USDC micropayments on Base L2). First 10 uses are free. No signup, no credit card. Python FastAPI backend, OpenRouter for model routing (400+ models), static HTML frontend (~2400 lines). Payment via Coinbase's x402 protocol — HTTP 402 status code triggers USDC settlement on Base.

VidShift is a free video and audio toolkit that runs 100% in your browser. Convert, compress, trim, mute, rotate, change speed, extract audio or frames, and create GIFs. No uploads, no sign-up, no watermarks, no ads. Your files never leave your device. Supports MP4, WebM, MKV, MOV, MP3, FLAC and 12+ formats. Built with WebAssembly for native-speed processing.

PreviewIn lets brands turn ordinary product images into interactive Agmented Reality experiences customers can open instantly from a QR code or link. Upload a photo, generate a lightweight 3D preview, and let customers visualize products in their real space directly from their phone browser. No app download required. Built for e-commerce brands, creators, and local businesses that want Apple-style product previews without expensive 3D pipelines or agencies. Already joined by 122+ early adopters.

AI communication coach that catches cognitive biases, emotional tone, and hidden assumptions in your writing before you hit send. Get a regret probability score, rephrasing suggestions, and bias analysis in seconds. Free plan available. Built for: Managers giving tough feedback Customer support reps dealing with angry tickets Remote teams who live in async messaging Anyone who’s ever regretted hitting “send” No credit card required to start. Pause for free today. ⏸️ pauseapp.space

Your dedicated AI sales assistant that finds leads, sends personalized outreach, and brings you into conversations when someone is interested. Start free.

Hi everyone, I’m building a Hindi AI assistant called Zoya. It can: - talk naturally in Hindi - respond with voice - open/search YouTube - interact like a companion AI - work inside browser I built it as a web-based AI assistant project and I’m continuously improving it. Would love feedback from the AI community 🙂 Website: https://zoya-assistant-tau.vercel.app/

Jetti is the recurring revenue intelligence platform for small and growing businesses- gyms, studios, clubs, and subscription services. It spots what changed, who needs attention, and why it matters, so you reach out at the right time and turn check-ins into retention and growth.

StayTap lets short-term rental hosts create a beautiful digital welcome booklet in minutes accessible via QR code, no app download required for guests. Auto-translated into 8+ languages. Unlimited properties. 100% free forever. Built by a host who was frustrated with expensive tools that did half the job. StayTap is what I wish had existed when I started managing my own gîtes.

GlobalUtilityHub is a free multi-tool website offering 100+ calculators, utility and productivity tools for everyday use. Tools include Mortgage Calculator, BMI Calculator, Compound Interest Calculator, JSON Formatter, Percentage Calculator and many more — all free, no signup required, optimized for Tier 1 audiences.

The all-in-one platform for shipping and managing iOS and Android apps. CLI: mysigner ship does build, sign, upload, poll Apple, submit. One command. Dashboard: Screenshot Studio (canvas editor, device frames, 30+ locales of translated captions), keyword tracking with Apple Search Ads popularity scores, reviews from both stores in one inbox, custom product pages (35 variants per iOS app), store analytics, AI translations across 44 locales. Free tier forever, full CLI. Pro $12/mo.

HeyNews learns from your newsletter archive, monitors your sources, and generates publish-ready drafts in your voice. Native Beehiiv & Kit; archive imports from Substack or any newsletter with a public archive. 14-day trial, plans from $99/mo. PH50 → 50% off 12 months.

Most developers build full-stack apps and give the code away for free — in repos, in threads, in Slack answers. Tetrees AI changes that. Vibe-code frontend, backend, mobile, and plugins with AI. Then turn what you built into verified code blocks and list them on the Exchange — where other builders actually pay for working code. Build faster. Ship cleaner. Get paid for what you make.

Most marketing tools give you a dashboard. theKrew gives you a team. 7 AI agents — Aria (your AI CMO), plus a researcher, copywriter, campaign manager, analyst, designer, and strategist — running outreach, content, social, and ads 24/7 for $99/month. The real differentiator: configurable autonomy. You decide what runs automatically vs. what gets your approval first. No other tool at this price does that.

Promptcellar is an open-source Claude Code plugin that auto-logs every AI prompt you send into a structured JSONL file in your git repo (.prompts/). The conversations that produced your code now live next to your code, version with your code, and stay on your machine - readable with jq, redacted for secrets by default, in an open format (PLF) any tool can read or write. MIT-licensed.

Hopper is the first agentic development environment for the mainframe. It's Cursor for mainframes. It combines a real TN3270 terminal, mainframe-aware panels for datasets, jobs, members, and spool output, and an AI agent that can operate across z/OS workflows. The agent can inspect datasets, read and edit PDS members, write JCL, submit jobs, parse JES output, explain failures, and help developers debug mainframe workflows faster. Hopper is available on Windows, Linux, and macOS.

A demonstration project for a discovery system. Seventeen knowledge chambers, 146 books, papers, and documents drawn from the public domain, paired with an Oracle. Built by Nishan Stepak.

TrendzSpot AI is an all-in-one AI platform that automates social media growth from idea to execution. Discover trends, generate captions, create videos, schedule posts, and manage engagement—all in one place. Built for creators and brands, it transforms hours of work into minutes with smart automation and data-driven insights, helping you scale faster and create content that actually performs.

Get a clean YouTube transcript instantly, along with hooks, social posts, video summary, and newsletter. 3 Ways to Use ToobText: 1) While viewing a video, replace "youtube" with "toobtext" in the URL. 2) Use the official ToobText browser extension! It adds a "Transcribe with ToobText" button discreetly next to the Subscribe button on YT videos. 3) Go to toobtext.com, enter YouTube video URL on homepage. I made ToobText so anyone in the world can quickly & easily transcribe YouTube vids