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Caffe: a fast framework for deep learning. For the most recent version checkout the dev branch. For the latest stable release checkout the master branch.

Echo is a high performance, extensible, minimalist web framework for Go

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Fast Scalable Machine Learning API For Smarter Applications

Super fast HTML 5 2D rendering engine that uses webGL with canvas fallback

http://amberframework.org - Questions? Post on StackOverflow and contribute to community knowledge! https://stackoverflow.com/questions/tagged/amber-framework - IRC? Share your chat messages across http://webchat.freenode.net/?channels=#amber

A simple take on creating an easy to use and fast material navigation drawer implementation

Fast, testable Scala services: https://twitter.github.io/finatra

Writing Fast Parsers Fast in Scala

Fast symbolic manipulation library, written in C++

Fast math typesetting for the web.

An accurate, fast, lightweight and versatile method for transcript-level quantification from RNA-seq data

Fast, lightweight and easy-to-use pathfinding library for grid-based games

Fast, flexible, and lean implementation of core jQuery designed specifically for the server.

Fast, customizable, boilerplate-free pickling support for Scala

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Small, safe and fast formatting library for C++

Package gocql implements a fast and robust Cassandra client for the Go programming language.

Modern Open Source Flat-File CMS

Fast and reliable message broker built on top of Kafka.

Scrapy, a fast high-level screen scraping and web crawling framework for Python.

A fast, lightweight node.js client for OrientDB

A fast, programmer-friendly, free CSV library for Java

Lightning fast code searching made easy

A fast, modular Node.js web framework dedicated to building realtime single-page apps

A .NET GIS solution that is fast and reliable for the .NET platform.

Fast persistent queues for .NET

An HTML5/CSS3 framework used at SAPO for fast and efficient website design and prototyping

fast node-mysql compatible mysql driver for node.js

Simple, modern & fast web-based email client

A small, fast, JavaScript-based JavaScript parser

BridJ: blazing fast Java / C / C++ interop

Ultra fast fullstack angular generator, using gulp.

A really fast Angular grid using the power of React to render

A fast sbt/gradle/lein/ivy/maven repository proxy

Insanely fast, full-stack, headless testing using node.js

A fast serializer for .NET objects

Lithium is a light, fast, and highly configurable framework for PHP 5.3+.

ngx_mruby - A Fast and Memory-Efficient Web Server Extension Mechanism Using Scripting Language mruby for nginx

A fast and simple Sikuli wrapper for .Net

fast, beautiful, and painless social shares:

A fast and easy to use decision tree learner in java

Fast Idiomatic Pretty Printer for Clojure

Phaser is a fun, free and fast 2D game framework for making HTML5 games for desktop and mobile web browsers, supporting Canvas and WebGL rendering.

Fast symbolic manipulation library, written in C++

Genson a fast & modular Java <> Json library

A blazing fast TR-069 auto configuration server (ACS) built with Node.js, Redis, and MongoDB.

CuraEngine is a powerful, fast and robust engine for processing 3D models into 3D printing instruction for Ultimaker and other GCode based 3D printers. It is part of the larger open source project called "Cura".

Fast matrix and vector maths library for Clojure - as a core.matrix implementation