AlterSend sends files directly between devices - P2P, E2EE, no cloud storage, no account, no size limits. Open source and cross-platform: mobile + desktop. Share a code or scan a QR, and files stream straight across.
I'm Denis. I built AlterSend because sending a big file to someone is still way harder than it should be. You upload it to WeTransfer or Google Drive, wait, hit a size limit, send a link, and your file ends up on a server that isn't yours. It's slow, it's capped, and it's not private.
AlterSend sends files straight from your device to the other person's. No upload step, no account, no size limit, end-to-end encrypted. Works anywhere - same room or another country.
We released a month ago and it's going better than I hoped: 7,000+ downloads, almost 1,000 GitHub stars, and a lot of great feedback from users that's helping me decide what to build next.
How it works: • Each transfer creates a random 32-byte key - that's the join code you share with the receiver • Devices find each other through a public DHT using a hash of that key - the key itself never leaves your devices • The connection is encrypted end to end. If a direct connection isn't possible, a relay passes the encrypted stream along - it can't read your files and doesn't store anything • When you disconnect, everything is wiped — nothing is stored anywhere
It's open source (Apache-2.0), free, and there are no accounts.
I'd love honest feedback - especially: what would it take for you to stop using WeTransfer, Drive links, or USB sticks? I'll be in the comments all day. 🙌
the "your files never touch the cloud" pitch is solid on paper but real P2P is never that clean once both sides are behind restrictive NAT/CGNAT - like on separate corporate wifis. what happens then, does it fall back to a relay server (still E2EE, just not direct), or does the transfer just fail and you're back to a USB drive?
Sent a video between my phone and laptop in seconds, no signup or upload wait was genuinely refreshing. The QR code pairing feels way cleaner than emailing myself a link.
Love the no-account, P2P approach - feels way cleaner than the usual cloud shuffle. One thing I'd want though: a quick way to pause or throttle transfers, since big video dumps tend to saturate my whole connection and wreck whatever else I'm doing online. Even a simple slider would do the job.
Direct transfer usually means both devices need to be online at once. How do you handle sending something to someone who isn't around until later, or is that out of scope by design?
no account or cloud step is honestly so refreshing, sent a big video between my laptop and phone in like seconds.
How do you handle firewall and NAT traversal in the peer-to-peer file transfer process?
This looks really clean, love that there's no account or size limit involved. One thing that would make it way more usable for me is the ability to resume an interrupted transfer if someone drops off wifi for a second, since flaky connections mid-download are the worst.
The no-account, code-or-QR pairing is such a refreshing call back to simplicity. Love that it's truly open source too, not just lip service.
About Altersend on Product Hunt
“File transfer with no cloud storage, no account, no limits”
Altersend launched on Product Hunt on July 14th, 2026 and earned 89 upvotes and 14 comments, placing #15 on the daily leaderboard. AlterSend sends files directly between devices - P2P, E2EE, no cloud storage, no account, no size limits. Open source and cross-platform: mobile + desktop. Share a code or scan a QR, and files stream straight across.
Altersend was featured in Productivity (656k followers), Open Source (68.6k followers) and Privacy (11.2k followers) on Product Hunt. Together, these topics include over 167k products, making this a competitive space to launch in.
Who hunted Altersend?
Altersend was hunted by Denis. 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.
Want to see how Altersend stacked up against nearby launches in real time? Check out the live launch dashboard for upvote speed charts, proximity comparisons, and more analytics.
Denis
Hey Product Hunt! 👋
I'm Denis. I built AlterSend because sending a big file to someone is still way harder than it should be. You upload it to WeTransfer or Google Drive, wait, hit a size limit, send a link, and your file ends up on a server that isn't yours. It's slow, it's capped, and it's not private.
AlterSend sends files straight from your device to the other person's. No upload step, no account, no size limit, end-to-end encrypted. Works anywhere - same room or another country.
We released a month ago and it's going better than I hoped: 7,000+ downloads, almost 1,000 GitHub stars, and a lot of great feedback from users that's helping me decide what to build next.
How it works:
• Each transfer creates a random 32-byte key - that's the join code you share with the receiver
• Devices find each other through a public DHT using a hash of that key - the key itself never leaves your devices
• The connection is encrypted end to end. If a direct connection isn't possible, a relay passes the encrypted stream along - it can't read your files and doesn't store anything
• When you disconnect, everything is wiped — nothing is stored anywhere
It's open source (Apache-2.0), free, and there are no accounts.
I'd love honest feedback - especially: what would it take for you to stop using WeTransfer, Drive links, or USB sticks? I'll be in the comments all day. 🙌