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SyncBy!App — Present wirelessly!
Present wirelessly with a 4-digit PIN. No cable, no app.
SyncBy!App turns any TV, monitor, or projector into a wireless screen for your PDF or photos. Open a browser on the screen, get a PIN, type it on your phone — no cables, no installs, no accounts. Files stay on your device; nothing is ever uploaded.
I built SyncBy!App after one too many conference-room standoffs — a projector that only speaks VGA, a laptop that doesn't, and an audience watching me dig through my bag for the right dongle.
The idea is simple: open a browser on any screen, get a 4-character PIN, type it into your phone, pick a PDF or some photos — you're presenting. No app to install, no account to create, no cable to hunt for. Slides travel peer-to-peer over WebRTC straight from your phone to the screen; nothing ever touches a server, nothing gets uploaded anywhere.
A few things I care about that you might too: - Works on locked-down conference Wi-Fi — it only needs ports 80/443, same as any website - Sessions are anonymous and disposable: no accounts, no tracking, no trace left behind - There's a self-hosted version for teams that want it fully on their own infrastructure
Would love your feedback — especially if you've ever been the person frantically searching "HDMI adapter near me" five minutes before a talk.
About SyncBy!App — Present wirelessly! on Product Hunt
“Present wirelessly with a 4-digit PIN. No cable, no app.”
SyncBy!App — Present wirelessly! was submitted on Product Hunt and earned 8 upvotes and 6 comments, placing #159 on the daily leaderboard. SyncBy!App turns any TV, monitor, or projector into a wireless screen for your PDF or photos. Open a browser on the screen, get a PIN, type it on your phone — no cables, no installs, no accounts. Files stay on your device; nothing is ever uploaded.
On the analytics side, SyncBy!App — Present wirelessly! competes within Productivity, Meetings and Remote Work — topics that collectively have 666.8k followers on Product Hunt. The dashboard above tracks how SyncBy!App — Present wirelessly! performed against the three products that launched closest to it on the same day.
Who hunted SyncBy!App — Present wirelessly!?
SyncBy!App — Present wirelessly! was hunted by Bartosz Kulczyk. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
For a complete overview of SyncBy!App — Present wirelessly! including community comment highlights and product details, visit the product overview.
Bartosz Kulczyk
Hi Product Hunt!
I built SyncBy!App after one too many conference-room standoffs — a projector that only speaks VGA, a laptop that doesn't, and an audience watching me dig through my bag for the right dongle.
The idea is simple: open a browser on any screen, get a 4-character PIN, type it into your phone, pick a PDF or some photos — you're presenting. No app to install, no account to create, no cable to hunt for. Slides travel peer-to-peer over WebRTC straight from your phone to the screen; nothing ever touches a server, nothing gets uploaded anywhere.
A few things I care about that you might too:
- Works on locked-down conference Wi-Fi — it only needs ports 80/443, same as any website
- Sessions are anonymous and disposable: no accounts, no tracking, no trace left behind
- There's a self-hosted version for teams that want it fully on their own infrastructure
Would love your feedback — especially if you've ever been the person frantically searching "HDMI adapter near me" five minutes before a talk.
Try it now: https://syncby.app