All tools / Web & Network
Debug the web layer. Decode JWTs without sending tokens anywhere, fire test requests at APIs straight from your browser, inspect incoming webhooks, calculate IPv4 subnets, parse user agent strings and URLs, convert timestamps, look up HTTP status codes and MIME types, and generate Open Graph tags and server configs. Tools that need the network say exactly where your data goes; the rest never transmit anything.
Decode JWT headers and payloads, inspect claims, and check expiry. Decode only, nothing is sent anywhere.
Parse any user agent string into browser, engine, OS, device, and CPU details.
Send REST requests from your browser, import or copy as cURL, and inspect the status, headers, timing, and response body.
Get a unique URL, point a webhook at it, and inspect every request it receives in real time.
Encode and decode URL components, and break any URL into protocol, host, path, and query parameters.
Convert Unix timestamps to readable dates and back, with a live current timestamp and timezone support.
Searchable reference of every HTTP status code with what it means and when to use it.
Find the right MIME type for any file extension, or look up which extensions a MIME type covers.
Enter an IP and CIDR prefix to get the network address, broadcast, host range, and subnet mask.
See your public IP address and look up location, ISP, and timezone details for any IP.
Fill in your page details and get the complete Open Graph and Twitter card meta tags, ready to paste.
Fetch a URL from the server, follow redirects, and inspect response and security headers.
Generate nginx server blocks for reverse proxy, static sites, SSL, load balancing, and WebSockets.
Generate VPN configs with config file, plain text summary, and QR code for WireGuard, OpenVPN, IKEv2, and more.