Product Hunt launches on June 4, 2026

Mailwarm 2.0 finished #1 with 655 upvotes, ahead of Astra Autonomous Pentest and Empromptu AI. Here are the day's 40 top launches with 4,771 upvotes between them, across 22 categories, Productivity the busiest with 7.

launches
40
launches
upvotes
4,771
upvotes
makers on file
42
makers on file
categories
22
categories

The leaderboard

  1. Mailwarm 2.0

    1. Mailwarm 2.0

    655 upvotes

    The email warmup tool, upgraded for deliverability.

    Most founders rely on email to grow, but emails don’t land in the inbox by magic. Mailwarm 2.0 is the premium email warmup and deliverability system built to give your emails the best chance of reaching the inbox. It combines automated…

    EmailYC S20mailwarm.com7 makers, 6 with emails
  2. Astra Autonomous Pentest

    AI agents that find, validate, and fix every vulnerability

    Astra Autonomous Pentesting makes self-healing software the new standard, a category we’re defining after 8 years and 5,000+ real-world pentests. An army of offensive pentesters and bounty hunter agents that discovers complex chained…

    SaaS1 maker
  3. Empromptu AI

    3. Empromptu AI

    281 upvotes

    Train Fine Tuned Models With AI Apps You're Already Building

    Most AI apps launch on someone else’s model and stay there forever. Empromptu AI turns live AI features into custom models you own. As your app runs, Empromptu AI captures real-world usage, human corrections, and edge cases from live AI…

  4. Google Gemma 4 12B

    4. Google Gemma 4 12B

    304 upvotes

    Run multimodal AI locally with an encoder-free architecture

    Gemma 4 12B processes text, vision, and audio natively without separate encoders, running on 16GB VRAM. For developers building local agentic applications who need multimodal capability without cloud dependency.

  5. AppWizzy

    5. AppWizzy

    165 upvotes

    Rent a private VM with Codex to build production apps

    AppWizzy gives you a private VM with Codex installed where you build, run, and host production web apps by chatting with AI. Your code is yours, the workspace persists, and the app lives in the same environment where it was created. Pay…

    Software Engineeringappwizzy.com1 maker, 1 with an email
  6. Build Club Campus

    6. Build Club Campus

    201 upvotes

    Virtual AI School: Upskill in AI and Become Great at it Fast

    Build Club Campus is a fun, gamified and community-driven virtual AI school for learning AI by building with it. Static courses get old fast in AI, so Campus helps you stay current through bite-sized courses, real projects, role-based use…

    Education1 maker
  7. Deliveryman.ai

    7. Deliveryman.ai

    186 upvotes

    Cold email infrastructure on autopilot without Gsuite

    Deliveryman.ai automates the hardest parts of cold email infrastructure mailbox setup, DNS records, warmup, email verification, sending systems, blacklist monitoring, reply management, and routing. Instead of spending weeks setting up…

    Salesdeliveryman.ai1 maker, 1 with an email
  8. Novus

    8. Novus

    147 upvotes

    Catch and fix usability issues automatically as you ship

    Novus is the product agent built for teams that ship fast. Connect your codebase and Novus automatically instruments, analyzes, and improves your product — no manual setup. It monitors continuously, flags usability issues proactively, and…

    Analytics1 maker
  9. TimeTuna.com

    9. TimeTuna.com

    148 upvotes

    If Calendly had gorgeous video backgrounds

    If Calendly was for people who care about design. We help founders, freelancers, and studios create a memorable impression on their prospective clients through booking pages with beautiful video backgrounds. Your video, your domain, your…

    Productivitytimetuna.com1 maker, 1 with an email
  10. Koji by Brilliant

    10. Koji by Brilliant

    129 upvotes

    A world-class personal tutor for every home

    This isn’t just a feature launch, it’s an evolution of our entire product experience. Brilliant is now a superintelligent tutor designed to work like the best human tutors. It asks the right questions, sketches right on your screen, and…

    Educationbrilliant.com1 maker
  11. Keen Code

    11. Keen Code

    126 upvotes

    A context-efficient CLI coding agent built by agents

    Keen Code is an open-source, context-aware and efficient CLI coding agent written in Go. Three aspects stand it out from other similar products: - It was built from scratch by coding agents, with the full prompt/design trail preserved and…

  12. Perplexity Personal Computer for Windows

    Run AI agents across your local files and apps on Windows

    Personal Computer extends Perplexity's multi-model agent system to your Windows machine, running tasks across local files, native apps, and the web for Max and Enterprise Max subscribers on the waitlist.

  13. Boxes.dev

    13. Boxes.dev

    113 upvotes

    Run Claude Code and Codex in your own cloud environment

    Cloud dev environments for agentic coding. Run each Claude Code or Codex chat on its own computer in the cloud, connect from mobile and desktop, and code from anywhere.

    Developer ToolsYC F26boxes.dev1 maker, 1 with an email
  14. Sun

    14. Sun

    106 upvotes

    Collaborative voice API for agents

    Sun is a voice first AI model built specifically for real‑time collaborative voice interaction, not just one‑on‑one chat. ChatGPT Realtime and Gemini Live were built for one user talking to AI. Sun is built for collaboration — meetings…

    Meetings1 maker
  15. Basedash Semantic Layer

    Define metrics once. Use them everywhere.

    The Basedash semantic layer lets teams create reusable SQL metrics and models that AI can reference across chat, charts, dashboards, insights, and automations.

  16. Carbon Voice Speed Dial

    Get your whole team (humans and agents!) on speed dial

    Talk to your whole team — people and AI agents — with one tap. Carbon Voice gives you a speed dial for your team. One keystroke on desktop, one tap on mobile, and you're talking to anyone — a teammate, a group, or an AI agent like…

    Messaging1 maker
  17. Gather

    17. Gather

    101 upvotes

    Save it once, never lose it again

    Easily find any design references! Gather is your second brain for visual inspiration — save screenshots, photos, and links, then search them the way you'd describe them to a friend: "that muted retro car ad."

  18. Extella.AI

    18. Extella.AI

    95 upvotes

    Agentic platform that evolves & builds reusable systems

    Extella is an agentic AI platform that self-evolves. It remembers what works and reuses it, so each task runs faster and cheaper. That memory lives in four layers: Rules adapt to you, Concepts build a knowledge base, Experts turn work…

    Productivityextella.ai
  19. Intelligent Terminal

    19. Intelligent Terminal

    100 upvotes

    Windows Terminal with native agent integration

    Intelligent Terminal is an open-source experimental fork of Windows Terminal with native agent integration. It adds an agent status bar, context-aware agent pane, automatic error detection, session management, and command palette prompts…

  20. Kai for Chrome

    20. Kai for Chrome

    94 upvotes

    Local meeting transcription with no account needed

    Kai transcribes & summarizes your Meet, Zoom, and Teams calls 100% on-device. Press ⌘⇧K, get a clean summary + action items the moment the call ends. No account, no upload, no meeting bot in the room. First Chrome extension running…

    Emailkai.xyz1 maker, 1 with an email
  21. Smart Runner

    21. Smart Runner

    94 upvotes

    Your training plan, rewritten after every run

    Smart Runner builds an adaptive 5K-to-marathon plan from one race result and rebuilds it after every run. Paces come from your VDOT, load tracking is the usual ATL/CTL/TSB, and workouts follow Pfitzinger, Daniels and Canova. Native Apple…

    iOS1 maker
  22. Chloe by Close

    22. Chloe by Close

    88 upvotes

    AI agent built into your CRM who works leads for you

    Other AI agents bolt onto your CRM, but Chloe is built into it. Chloe calls leads, replies to emails, enriches contacts, takes notes, and updates Close the second anything changes. No extra seat, no commission, no integration to babysit.…

    SalesYC W11close.com1 maker
  23. Cignara

    23. Cignara

    93 upvotes

    AI Agents for Fortune 500 grade customer support

    Cignara provides enterprise grade AI agents that handle end to end customer conversations over voice and chat. Built with strict policy governance, our agents reason within your specific business rules to deliver verifiable, completely…

    Customer SuccessYC X26cignara.com1 maker, 1 with an email
  24. Audex Trace

    24. Audex Trace

    82 upvotes

    See real time codec, bit depth, sample rate for Apple Music

    Audex Trace is a Mac mini player for Apple Music that shows what is actually playing in real time: codec, bit depth, sample rate, and output match status. It also shows Playing Next, estimates upcoming queue quality, and warns about…

    Mac1 maker
  25. PlugTalk

    25. PlugTalk

    89 upvotes

    Your Mac talks back when you plug things in

    PlugTalk plays a custom sound for every USB plug and unplug, and shows live USB speed, power draw, and storage usage from the menu bar. 18 built-in sound packs plus your own MP3s. Per-device rules, hub-aware grouping, connection log.…

  26. Split Ninja

    26. Split Ninja

    82 upvotes

    Cut, extract, mute, and split videos locally

    Split Ninja is a free local-first media toolkit for cutting videos, extracting audio, muting clips, and splitting scenes directly in your browser. Your files stay on your device, with fast export and precise re-encode modes.

  27. Walrus Memory

    27. Walrus Memory

    86 upvotes

    Enable agents to keep context & work across apps + sessions

    Walrus Memory enables AI agents to operate reliably across apps and sessions, without losing context. Portable, verifiable, and fully controlled by you, it is the memory layer that lets agents handle complex workflows and coordinate using…

  28. Curata

    28. Curata

    80 upvotes

    A shared workspace for AI agents and humans.

    Curata is an AI-native knowledge base where agents and humans build knowledge together. AI agents write structured pages from your live data or inputs - CRM, calls, tickets, Slack. Your team reviews and annotates in the browser. Every run…

    Productivitycurata.ai1 maker, 1 with an email
  29. DotBGE

    29. DotBGE

    85 upvotes

    Local-first file encryption for iOS, CLI, and agents

    DotBGE encrypts files on-device with no accounts and no servers. Use the iPhone/iPad app to encrypt, decrypt, preview, and sharebge files; use the bge CLI on macOS/Linux for scripts and terminal workflows; or let Claude Code, ChatGPT, and…

    Privacydotbge.com1 maker, 1 with an email
  30. ChatPilot

    30. ChatPilot

    81 upvotes

    Bulk delete, archive & timestamp your ChatGPT conversations

    ChatPilot brings the management tools ChatGPT is missing. Select multiple conversations and delete or archive them in bulk—no more clicking through chats one by one. It also adds timestamps to your conversations, so you can finally see…

  31. KLIPY

    31. KLIPY

    79 upvotes

    Expression API layer for next generation Apps.

    KLIPY is the #1 short-form media content API - GIFs, Stickers and Clips in one integration, delivering the industry's highest share rates. Over 8,000 developers build on KLIPY, including BeReal, Microsoft SwiftKey and Baidu.

    Social Mediaklipy.com1 maker, 1 with an email
  32. API AI Readiness Scorecard

    Is your API ready for AI agents? Get an AI readiness score

    Jentic API Scorecard is a free, open-source CLI and web UI that grades any OpenAPI spec for AI-readiness across six dimensions: compliance, developer experience, agent readiness, usability, security, and discoverability. AI agents are…

    API1 maker
  33. Ringly: Alarm Clock & Sleep

    Make snoozing harder than waking up

    Ringly is an iPhone alarm for chronic snoozers. Set a Wake Profile, check that tomorrow’s alarm is ready, then dismiss it with missions like math, typing, walking, shake, scan/photo proof, or memory. The goal is simple: make the sleepy…

    iOS1 maker
  34. Headroom

    34. Headroom

    17 upvotes

    Cut Claude Code token costs by ~50% with Headroom

    Headroom is a menu bar app that quietly optimizes the inputs Claude Code gets by trimming prompt bloat, stripping boilerplate, and compressing documents without changing how you work. This unlocks about 2x as much Claude Code usage on the…

    Developer Toolsheadroom.io1 maker, 1 with an email
  35. Moneyball

    35. Moneyball

    19 upvotes

    AI finance tracker for multi-bank, multi-currency households

    Moneyball is a personal finance app for modern households and individuals managing money across countries, currencies, banks, and cards. Upload any statement, and Moneyball’s AI categorises every transaction using pre-defined rules…

    Fintech1 maker
  36. Earthguessr 2.0

    36. Earthguessr 2.0

    15 upvotes

    Zoom, pan, and guess where you are!

    Map the unknown. Explore five random spots on the planet from a satellite's perspective — zoom, pan, and guess where you are!

    Free Gamesearthguessr.com1 maker
  37. Humanonn

    37. Humanonn

    16 upvotes

    Make your site feel more human

    most tools give generic audits. humanonn specifically answers "why my site look vibe coded." it crawls your live site, captures hover states, interaction effects, screenshots... maps everything against tiered signals split into origin…

  38. Wikigraph

    38. Wikigraph

    14 upvotes

    An interactive map of all of English Wikipedia

    An interactive map of all of English Wikipedia. You can pan and zoom freely, search for any topic, and find the shortest path between any two articles: how many clicks from Banana to Product Hunt?

    Education1 maker
  39. Maths3D

    39. Maths3D

    12 upvotes

    Real Maths. Real Places.

    Interactive 3D geometry and trigonometry for NCEA, Singapore MOE, and US Common Core. Visualisation of the surface areas of hollow, open and closed 3D platonic shapes. Animated derivations of volumes of pyramids, cones, prisms and…

    Educationmaths3d.com1 maker, 1 with an email
  40. DockSolo

    40. DockSolo

    12 upvotes

    Pin the macOS Dock to one screen — for good

    Stop the Mac Dock from jumping between screens. DockSolo pins it to the display you choose. Native, no subscription. €4.99 lifetime.

    Productivitydocksolo.com1 maker

This day's categories

Questions

What was #1 on Product Hunt on June 4, 2026?
Mailwarm 2.0 ("The email warmup tool, upgraded for deliverability."), with 655 upvotes. Astra Autonomous Pentest (#2) and Empromptu AI (#3) followed.
How many launches are listed here?
40: the top of the day's leaderboard, ranked launches first. Junior has 42 makers on file for them, 17 with a work email.
Which time zone is the day in?
Pacific time, as Product Hunt runs its leaderboard: a day starts at midnight in San Francisco.

Reach the 42 makers behind June 4, 2026's launches

Junior lists the founders and makers behind every launch here, with verified work emails, LinkedIn and X profiles, CSV export and a daily Google Sheet. $29/month, cancel any time.