Show HN: We built Premagic – a tool that turns event attendees into marketers

[mevinbabuc]

At every event, tons of photos are taken, but they rarely get used well. As organizers, you post a handful on social media while the best moments are scattered across attendee phones. And if you’re hoping for engagement or visibility? It’s a grind.

We built Premagic, an event tool that flips this problem.

Here’s what we do:

Instant Photo Sharing: We use AI to auto-select the best event photos and share them in real time with attendees. They get photos they love. You get organic visibility when they share (and they do).

Branded Advocacy Posters: Personalized “I’m attending” or “I’m speaking” posters are generated automatically—no designer needed. Attendees become your event’s marketing army.

AI Avatar Check-Ins: We turn event check-ins into an experience. Attendees can generate personalized, branded avatars on the spot—fun, shareable, and sponsor-friendly.

We’ve tested this at over 2,000 events and seen a 3x increase in organic social reach for organizers. Event marketers and sponsors love it because it amplifies visibility without paid ads.

We’re event tech folks trying to make photos and moments work harder—organically.

Would love your feedback!

[nithinmmukundan]

I recently used Premagic at a small networking dinner, and honestly, it was surprisingly effective. The real-time photo-sharing feature helped break the ice and made it easier to remember who I’d met. What stood out, though, was the visual networking aspect—being able to tap into attendee details afterward was super handy. For a casual dinner, where connections are more personal and less transactional, it really added a layer of value I didn’t expect.

[mevinbabuc]

Nice, glad it worked for you!

[mevinbabuc]

Here's a video - https://www.youtube.com/watch?v=pXbbc1wakTM&t=1s

Here's a case study on G2 leveraged us - https://premagic.com/case-study/g2-live

[WinH]

How do you handle admins approving what gets posted? I know at a lot of events, the event organizers are worried about content being auto posted. Also, Do you have a video to a demo anywhere?

[mevinbabuc]

Event attendees post the content — we simply give them the right content at the right time to encourage them to share. From our experience, there are two main reasons people don’t talk about events much: either they don’t have photos to share, or they have pictures but don’t know what to write about.

Our AI solves this by automatically crafting a ready-to-go post. Attendees can tweak it if they want or share it as-is—making it effortless for them to join the conversation.

Here's a video - https://www.youtube.com/watch?v=pXbbc1wakTM Here's a recent case study - https://premagic.com/case-study/g2-live/

[emailbhatia]

An amazing product that I’ve experienced firsthand. It’s satisfying when attendees share more pictures of the event both Pre and post event.

[mevinbabuc]

Appreciate the feedback! Glad to hear the pre- and post-event photo sharing has been a hit. It’s all about keeping the momentum going!

[sbandaru]

It’s a product we get an aha moment immediately, love what you guys are doing

[mevinbabuc]

Thanks! Love hearing that aha moment feedback—it's exactly what we want :)

[pallavn]

Love the simplicity and magic of this!

[mevinbabuc]

Thanks! We’re all about keeping it simple while adding that ‘wow’ factor. Glad you like it!