网络协议栈
- DashBeam通过 Iroh 的 QUIC
- Blip未知
- LocalSendTCP 上的 HTTPS/REST
- Magic Wormhole加密 TCP
- PairDropWebRTC/DTLS (SCTP)
公告:AltSendme 现已更名为 DashBeam。同一款应用,更易发音、记忆和搜索

DashBeam works by connecting sender and receiver directly, so there's no need to upload to a server, which means your transfers are truly private.
DashBeam can saturate a 4Gbps connection.
Interrupted downloads pick up where they left off.
Data is automatically verified for correctness on both send and receive.
Ways to send
Three ways to send a file, and no account on either end.
Recommended
On the same Wi-Fi, your devices just appear. Pick one, confirm a code the first time, and it’s already sending.
Pair once with a short code and they stay paired. Works over the internet, not just the same network. After that it’s one click.
For anyone else: a one-time link, code, or QR. They install nothing. It opens in their browser.
Platforms
Native apps, a terminal client, and a browser build, all speaking the same protocol.
Why DashBeam
No accounts, no quotas, no ceiling. These are the guarantees behind every transfer.
性能
发送任意大小的文件或整个文件夹,通过 BLAKE3 完整性校验进行端到端验证。
跑满本地与远程的高速连接,带来闪电般的传输速度。
传输中断后可从断点处继续,一次发送即可同时送达多台设备。
连接性
通过设备身份连接,而非 IP 地址。
传输过程中切换 Wi-Fi、蜂窝网络或其他网络,连接也不会中断。
运行自己的中继服务器,实现不限速的远程传输(Settings → Infra)。
其他
下载前即可预览内容,并在本地保留每一次传输的记录。
开启诊断功能后,可清楚查看底层究竟发生了什么。
安装包小巧,开源免费,没有任何限制。
开源是我们回馈社区的方式,也是确保我们所构建的东西能够超越我们的方式。
直接与我们互动,提出功能建议,报告错误,提前获取更新,并帮助塑造文件分享的未来。
在 Discord 上加入我们DashBeam 完全免费、开源,且无广告或付费墙。如果您觉得它有用,请考虑支持其开发。每一份捐赠都有助于让这个项目保持免费、独立并持续维护。