Best of Product Hunt|June 4, 2026

1. Mailwarm 2.0The email warmup tool, upgraded for deliverability.

2. Astra Autonomous PentestAI agents that find, validate, and fix every vulnerability

3. Empromptu AITrain Fine Tuned Models With AI Apps You're Already Building

8. NovusCatch and fix usability issues automatically as you ship

4. Google Gemma 4 12BRun multimodal AI locally with an encoder-free architecture

5. AppWizzyRent a private VM with Codex to build production apps

6. Build Club Campus Virtual AI School: Upskill in AI and Become Great at it Fast

31. KLIPYExpression API layer for next generation Apps.

7. Deliveryman.aiCold email infrastructure on autopilot without Gsuite

14. SunCollaborative voice API for agents

12. Perplexity Personal Computer for WindowsRun AI agents across your local files and apps on Windows

9. TimeTuna.comIf Calendly had gorgeous video backgrounds

17. GatherSave it once, never lose it again

10. Koji by BrilliantA world-class personal tutor for every home

13. Boxes.devRun Claude Code and Codex in your own cloud environment

11. Keen CodeA context-efficient CLI coding agent built by agents

18. Extella.AIAgentic platform that evolves & builds reusable systems