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PacketFlow Lens
Free tcpdump analysis with packet flows and source evidence
Free, browser-based tcpdump analysis. Paste capture text to visualize TCP, UDP, DNS and ICMP traffic, inspect the source lines behind findings, and plan your next checks. No account, installation or file upload required. Pasted logs and results stay in the analysis area and are never saved or sent to a server. Includes sample captures, packet diagrams, capture settings and a clear-input button. Text summaries only; PCAP uploads are not supported.
Hi Product Hunt! I'm Black K, and I'm sharing PacketFlow Lens: a free tool for making tcpdump text easier to read.
Paste a capture excerpt to follow packet flows, inspect the exact source lines behind each finding, and choose what to check next.
It's free to use, with no signup or installation. Your pasted logs and analysis results are processed in an isolated browser area; they are not uploaded or saved.
You can explore TCP connection setup, repeated SYN packets, zero-window conditions, DNS response timing and ICMP messages. Findings stay tied to the text you provided, with capture limits and uncertainty shown alongside them.
Start with a built-in sample, or paste your own tcpdump text. Use Clear input above the capture box to remove the current input and results before starting again.
This is a text-summary analyzer, so it does not accept PCAP files or reconstruct a complete network path.
Try it free: https://quirky-guy.com/tools/tcp...
I'd welcome feedback on which capture formats and troubleshooting cases would be most useful to support next.
About PacketFlow Lens on Product Hunt
“Free tcpdump analysis with packet flows and source evidence”
PacketFlow Lens was submitted on Product Hunt and earned 0 upvotes and 1 comments, placing #302 on the daily leaderboard. Free, browser-based tcpdump analysis. Paste capture text to visualize TCP, UDP, DNS and ICMP traffic, inspect the source lines behind findings, and plan your next checks. No account, installation or file upload required. Pasted logs and results stay in the analysis area and are never saved or sent to a server. Includes sample captures, packet diagrams, capture settings and a clear-input button. Text summaries only; PCAP uploads are not supported.
On the analytics side, PacketFlow Lens competes within Developer Tools and Data Visualization — topics that collectively have 525.3k followers on Product Hunt. The dashboard above tracks how PacketFlow Lens performed against the three products that launched closest to it on the same day.
Who hunted PacketFlow Lens?
PacketFlow Lens was hunted by Black K. 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.
For a complete overview of PacketFlow Lens including community comment highlights and product details, visit the product overview.
Black K