AI UNDERDOGSDAILY PICK
AI UNDERDOGS
传文件，不经任何服务器
Share files, zero server involved
卡卡局域网文件快传
局域网传大文件
数据全程不经过任何服务器——听上去像黑客行为
但它真的能用
Sending big files over LAN without data ever
touching a server — sounds like a hack
but it actually works
开房间，扫码，传完
Create room, scan QR, done
传统做法是把文件先传到云端再下载
慢、压缩、数据过别人的手
这个工具用 WebRTC 建立点对点连接
设备 A 直接发给设备 B
文件压根不碰服务器
没有文件大小限制，因为数据根本不经过它
Normally you upload to the cloud, wait, then
download — slow, compressed, someone else holds your
data. This uses WebRTC to connect devices directly
A sends to B. No server relay means
no size limit
★ SIGNAL 1
有人真的在用
Real people, real usage
页面上挂着几十条传输记录
最早能追溯到七月底
这不是 demo
不是炫技——有人把这工具当日常在用
一条一条记录说明它不是一次性项目
The page shows dozens of transfer records going
back to late July. This isn't a demo
— someone is using this tool day-to-day, and
the logs prove it's not a one-weekend project
★ SIGNAL 2
Vibe coding 的产物
Vibe-coded from scratch
作者自己说是 vibe coding 出来的
但从技术实现看，WebRTC 建连
STUN 穿透、QR 码配对
每一个环节都得跑通才能真正不经过服务器——这不是 vibe 一下就能糊弄过去的
The author literally says it was vibe-coded. But
WebRTC connection setup, STUN traversal, QR-based pairing —
every piece has to work for the server-free
claim to hold. That's not something you can
fake with vibes
作者的原话很朴实：vibe coding 了一个局域网传文件工具
没有花哨的介绍页，没有限时优惠弹窗
做完就放那
但持续更新的传输记录说明——有人在用
作者也还在管
The author's words are dead simple: vibe-coded a
LAN file transfer tool. No fancy landing page
no urgency popups. Just shipped it. But the
ongoing logs show people keep coming back —
and the author keeps maintaining it
AI UNDERDOGS
同一局域网？现在就试试
On the same network? Try it now
卡卡局域网文件快传
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kaka770.cn/tools/file-transfer