HTTP requests can be sent from the command line using xh, a fast tool inspired by HTTPie.
Open source
24 alternativesPacketSender
Packet Sender sends and receives TCP, UDP, SSL, and DTLS packets and supports HTTP requests.
About PacketSender
Packet Sender is a free utility for sending and receiving network packets. It supports TCP, UDP, SSL, and DTLS on ports chosen by the user, and includes a built-in HTTP client for GET and POST requests. It is available for Windows, Mac, and Linux, and includes a command line version with all downloads.
With the tool, you can define packet data in ASCII or HEX and use macros, run a client or server for testing, and review traffic logs. It also provides intense traffic generation for stress-testing devices, panel generation for building control systems that trigger commands, and Packet Sender Cloud to save and share setups. Documentation, forums, and an issue tracker are available for support.
It suits developers testing network APIs and automation, as well as people checking connectivity and firewalls, analyzing malware traffic, providing tech support, or doing security research with SSL traffic.
Key features
- Send and receive TCP, UDP, SSL, and DTLS packets
- Define packet data in ASCII or HEX with macros
- Built-in HTTP client for GET/POST with auth headers
- Command line version for automation and scripting
- Panel generator for control systems with button triggers
- Runs on Windows, Mac, and Linux desktops
Best for: Developers, network testers, and security researchers who need to test connections, APIs, and devices.
Good for
- Free full version with no ads or bundles
- Supports multiple protocols and HTTP testing in one tool
- Available on Windows, Mac, and Linux with command line
- Includes documentation, forums, and issue tracker
PacketSender at a glance
- Website
- packetsender.com
- Category
- Development › Network Tools
- Type
- Online tool
- Pricing
- Free
- Platforms
- Linux, Web, Windows
- Open source
- Not stated
- Language
- English
- Last checked
- Oct 5, 2026 · Online when checked
- Listed
- Oct 5, 2026
PacketSender alternatives
Tools and sites you could use instead, ranked by how closely they match.
Network protocol traffic can be inspected with Wireshark, a packet analysis application.
Cloudflare Speed Test measures download, upload, latency, jitter, and packet loss for an internet connection.
Pick
24 alternativesCreate a dynamic DNS subdomain and update it through myaddr.tools HTTP API.
Resolve DNS queries with DNS.SB, which supports DNS over HTTPS and DNS over TLS.
Request a free .is-a.dev subdomain by following the registration steps in the project repository.
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PacketSender FAQ
What does Packet Sender do?
It sends and receives TCP, UDP, SSL, and DTLS packets on user-chosen ports and can test HTTP GET and POST requests.
Is Packet Sender free?
Yes, the site states the full version is free with no ads or bundles.
Which operating systems does Packet Sender support?
It supports Windows, macOS, and Linux desktop, with a command line version included.
Can Packet Sender be used for automation?
Yes, it includes a command line tool and hotkeys for test automation and scripting.
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