Great F*cking Startup Advice - Strongly worded suggestions for startup founders
Fiddler - Fiddler is a debugging program for websites.
Startup Notes - Most actionable advice from each Startup School speaker
Proxyman.io - Proxyman is a high-performance macOS app, which enables developers to view HTTP/HTTPS requests from apps and domains.
First Search - The world's best startup advice, curated and searchable.
HTTP Toolkit - Beautiful, cross-platform & open-source tools to debug, test & build with HTTP(S). One-click setup for browsers, servers, Android, CLI tools, scripts and more.