potrace - Open source program that transforms bitmaps into vector graphics.
WhatFont - The easiest way to identify fonts on web pages
Vector Magic - Easily convert JPG, PNG, BMP, GIF bitmap images to SVG, EPS, PDF, AI, DXF vector images with real full-color tracing, online or using the desktop app!
Gradient CSS - Create CSS Gradients with Ease
Vectorizer.io - Fast and easy way to vectorize an image online
Ultimate CSS Gradient Generator - Ultimate CSS gradient color code creators are always in eye of designers. CSS gradient or CSS progression codes.