Edit text in place, sign, redact, reorganize. True content-stream rewrite, not stamp-on-top.
LaunchEdit, sign, redact, and reorganize PDF files in your browser. The Adobe Acrobat alternative that runs on your device — no upload, no subscription.
Pixel-perfect PDF diff with word-level text view, metadata + form-field compare, ruler, and exclusion zones.
LaunchSide-by-side or overlay PDF diff with a document-type selector — Document (contracts, reports), AEC / Blueprint (drawings, schematics), or Image-Scan. Highlights pixel-level differences plus a word-level text diff in a modal.
Open any PCB Gerber bundle in your browser. Gerber X2, Excellon, layer compare, snap-to-pad measure, snapshot URLs.
LaunchOpen RS-274X / X2 Gerber and Excellon files. Inspect layers, measure traces, export to PNG / SVG / DXF.
Compress, merge, split, convert, and manipulate PDF files.
Resize, compress, convert, and transform images.
Format, encode, decode, and validate code and data — safe for production secrets.
Convert, compress, and cut audio and video — MP3, WAV, MP4, WebM, Opus — all in your browser, nothing uploads.
Sourdough baker math, canning processing times — kitchen math you should not memorize.
AES-256 file encryption and self-destructing encrypted notes.
Analyze packet captures and run sysadmin diagnostics in your browser — nothing uploads. PCAP Analyzer ships first.
Chart-overlay technical analysis and precision financial math — your screenshots and numbers never leave your device.
Open CAD, BIM, medical, and enterprise files without paying $300-30K/year for the native software. Gerber Viewer ships first.
Analyze packet captures and run sysadmin diagnostics in your browser — nothing uploads. PCAP Analyzer ships first.
Open and analyze .pcap/.pcapng captures in your browser — nothing uploaded.
FeaturedIn-browser serial terminal for switches, routers, and embedded boards over a USB-serial cable. Local-only, nothing installed.
Try clearing filters or adjusting your search — most categories have dozens of tools once you widen the net.
Network and sysadmin tools that run entirely in your browser — your packet captures, logs, and configs never touch a server. A packet capture is one of the most sensitive artifacts in IT: it is full of internal IPs, hostnames, credentials, and user data. Every online analyzer that can actually dissect it (CloudShark, A-Packets, PacketSafari) makes you upload it first, and some publish the result on a page other people can read. These tools do the opposite. The PCAP Analyzer opens .pcap and .pcapng files locally and gives you Wireshark-style dissection — packet list, per-packet protocol tree, hex, a real display filter, conversation and endpoint tables, protocol hierarchy, an IO graph, expert info, and follow-stream — for Ethernet, IP, TCP/UDP, DNS, HTTP, TLS, DHCP and more, with optional TLS keylog decryption using a keylog file you already have. Nothing uploads, there is no size cap beyond your device memory, and you can open DevTools and watch that nothing leaves the tab. Built for the moment someone hands you a capture on a locked-down or borrowed machine and you just need answers. It is a triage analyzer for the common case, not a full replacement for desktop Wireshark.
No. The PCAP Analyzer parses your .pcap/.pcapng entirely in your browser via a local WebAssembly engine. The capture never touches a server — open DevTools and watch the Network tab stay empty. That matters because captures are full of internal IPs, hostnames, credentials, and user data.
Those analyzers run on a server, so you have to upload your capture first — and some free tiers cap the file size or publish results on a page other people can read. These tools keep the file on your device, so there is no upload, no size cap beyond your own memory, and no chance your traffic lands somewhere public.
You usually already have one, or can make one without installing anything. Windows 10/Server 2019+ ship pktmon (pktmon start --capture, then pktmon pcapng). Linux and macOS have tcpdump. Network gear, firewalls, and cloud VPC traffic mirroring all export pcap/pcapng. Then just drop the file here.
No, and it does not try to be. Desktop Wireshark is free, local, and has thousands of dissectors. This is a triage analyzer for the common case — the protocols in the vast majority of captures — for when you cannot or do not want to install software but still need to read a capture privately and fast.
