This package implements column-formatted output for Golang.

cli is a simple, fast, and fun package for building command line apps in Go. The goal is to enable developers to write fast and distributable command line applications in an expressive way.

This package provides a glob library that implements descending into other directories. It is optimized for filewalking.

This package provides x86_64 variant of ported from a Python module PeachPy, with some adaption to the Go language features.

This is a Go parser for ssh_config files. Importantly, this parser attempts to preserve comments in a given file, so you can manipulate a ssh_config file from a program.

ansi defines common ANSI escape sequences based on the ECMA-48 specs.

This is a memcache client library for the Go programming language.

This package can generate ASCII line graphs in Golang.

A .gitignore parser for Go.

Package webp implements a decoder and encoder for https://en.wikipedia.org/wiki/WebP, WebP images. It's a maintained fork of github.com/chai2010/webp.

This package provides an implementation of the Alphanum Algorithm developed by Dave Koelle in Go.

This package provides a collection veriaty of utility libraries:

• intset - compress a stream of integers

• lz - lempel-ziv compression

• threadtree - a threaded binary-tree

• numerical - numerical integration and root finding

• maze - maze generation stuff

• hist - simple command-line histogramming tool

• simhash - trivial simhash implementation

• wscat - trivial websocket netcat

• servedir - trivial http fileserver

• rndtxt - generate random text strings

• mpush - push to multiple notification services (pushbullet, nma, pushover)

• superbat - batmanjs and go-restful playground

• msgrpc - msgpack rpc python/go interop samples

• quantile - testing different streaming quantile estimators

• wtflog - logging package with some renamed log levels

• qrshow - display QR codes in a terminal

• nlz - asm code to find number of leading zeros

• httpecho - server to dump information about an http request

• lzpack - trivial packed format for lz4 compression

• grinderplot - generate a flot chart from grinder logs

• worker - framework for spawning concurrent workers

• gddo - search godoc.org from the command line

• uuid - generate random UUIDs

• entropy - reducer to compute entropy per epoch for a set of values in a category

• inthash - integer hashing functions

• udprelay - simple udp-to-tcp multiplexing relay

• shufsecs - shuffle sorted epoch-data within epochs

• strtable - dumb string->uint32 hash table for profiling vs native maps

• cachetest - playing with different caching algorithms (clock, lru, lfu, random)

• glj - passing data from go to lua with msgpack

• toms - text filter for time.Duration to milliseconds

• bluniq - bloom-filter based unique filter

• skvdist - check distribution of shardedkv choosers

• gcwatch - print out garbage collection stats from /debug/vars

• toepoch - convert time fields to epochs

• repl - framework for making dumb repls for testing

• skvchk - tool for checking shardedkv distributions

• interp - interpolation search

• oma - simulation of the Dutch children's board game "Met de bus naar Oma"

• rndsample - uniform random sample from stdin

• pphrase - simple passphrase generator

• fastrand - fast xorshift rng with bias-free [0..n)

• range2cird - turn IP ranges into CIDR

• gfmt - trivial filter wrapping go-linebreak

• mtest - port of libtommath test program

• leven - fastest levenshtein distance algorithm I could find

• matcher - test different methods of testing string set membership

• cstbucket - crunch carbonserver logs for time-ranges of queries

• stablepart - stable partition a sort.Interface on a boolean predicate

• jumpreplica - tool for playing with replica choices for jump-hash

• sshdregex - demo using ragel for optimized regexp matching

• hllbench - benchmark different hyperloglog implementations

• shlines, sipsum - tools for siphashing things

• urlq - extract query parameters from a list of URLs

• median - compute the median of 5 numbers with a sorting network

• hashbench - benchmark different hashing functions

• fastpprof - how to use pprof with fasthttp

• ewmaest - progress logging with ewma-based ETA estimation

Phony is a very minimal actor model library for Go, inspired by the causal messaging system in the Pony programming language.

This is a pure Go implementation of the MySQL API, compatible with golang's database/sql package.

Puddle is a tiny generic resource pool library hat uses the standard context library to signal cancellation of acquires. It is designed to contain the minimum functionality required for a resource pool. It can be used directly or it can be used as the base for a domain specific resource pool. For example, a database connection pool may use puddle internally and implement health checks and keep-alive behavior without needing to implement any concurrent code of its own.

This package generates UUID-format strings using high quality bytes. It is not intended to be RFC compliant, merely to use a well-understood string representation of a 128-bit value. It can also parse UUID-format strings into their component bytes.

Blackfriday is a Markdown processor in Go.

Package errors provides errors that have stack-traces. It provides the type *Error which implements the standard golang error interface, so you can use this library interchangeably with code that is expecting a normal error return.

This package provides a reflection extension.

This package provides a Standard Compression Scheme for Unicode implementation in Go.

This package implements sysconf and provides the associated SC_* constants to query system configuration values at run time.

This package implements functionality for parsing and formating the mbox file format. It's an alternative fork of https://github.com/emersion/go-mbox.

lru is a package which implements a fixed-size thread safe Least recently used cache. It is based on the cache in Groupcache.

Extension for the goldmark markdown parser which enables defining document metadata in the YAML format.