- ⚡️ Lightning-Fast Download
Built-in fast-steal work-stealing algorithm, with a measured download speed 2.43x that of NDM. - 🔄 Robust Retry
During download, switching WiFi, disconnecting WiFi, or changing proxies will still guarantee **correct file content **. - ⛓️💥 Resumable Download
Pause at any time halfway, and resume the transfer later. - ⛓️💥 Incremental Resumption
If a server log is fully downloaded today and 1000 new lines are added tomorrow, this feature only transfers the new 1000 lines. - 💰 Open-Source & Free
Full source code is public, maintained by share121, Cyan, and other contributors. - 💻 Cross-Platform
using curl:
curl -fsSL https://fd.s121.top/update/cli/install.sh | bashOr using wget:
wget -qO- https://fd.s121.top/update/cli/install.sh | bashpowershell -ExecutionPolicy ByPass -c "irm https://fd.s121.top/update/cli/install.ps1 | iex"
| Architecture | Windows | Linux | Mac OS |
|---|---|---|---|
| x86_64 | Download | Download | Download |
| x86 | Download | Download | ❌ Not supported |
| aarch64 | Download | Download | Download |
> fd download -h
fast-down v2.7.3
Download file (default)
Usage: fd download [OPTIONS] <URL>
Arguments:
<URL> URL to download
Options:
-f, --force
Force overwrite existing file
--no-resume
Disable resumable download
-d, --dir <SAVE_FOLDER>
Save directory [default: .]
-t, --threads <THREADS>
Number of download threads [default: 32]
-o, --out <FILE_NAME>
Custom file name
-p, --proxy <PROXY>
Proxy address (format: http://proxy:port or socks5://proxy:port). Leave empty to use system proxy, use -p "" to disable proxy
-H, --header <Key: Value>
Custom request header (can be used multiple times)
--min-chunk-size <MIN_CHUNK_SIZE>
Minimum chunk size (unit: B) [default: 1048576]
--write-buffer-size <WRITE_BUFFER_SIZE>
Write buffer size (unit: B) [default: 8388608]
--write-queue-cap <WRITE_QUEUE_CAP>
Write queue capacity [default: 10240]
--progress-width <PROGRESS_WIDTH>
Progress bar width
--retry-gap <RETRY_GAP>
Retry interval (unit: ms) [default: 500]
--repaint-gap <REPAINT_GAP>
Progress bar redraw interval (unit: ms) [default: 200]
--pull-timeout <PULL_TIMEOUT>
Pull timeout (unit: ms) [default: 5000]
--browser
Simulate browser behavior
-y, --yes
Auto confirm all prompts
-v, --verbose
Verbose output
--accept-invalid-certs
Allow invalid certificates
--accept-invalid-hostnames
Allow invalid hostnames
-i, --interface
Use interactive interface to select network interface
--ip <IP address of network interface>
Custom network interface (can be used multiple times)
--max-speculative <MAX_SPECULATIVE>
Maximum speculative threads [default: 3]
--write-method <WRITE_METHOD>
Write method (mmap is faster, std has better compatibility) [default: mmap] [possible values: mmap, std]
-h, --help
Print help