This package provides the ability to generate Sortable Identifiers. These identifiers are also universally unique.

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.

combinator generates a slice of all possible value combinations for any given struct and a set of its potential member values. This can be used to generate extensive test matrixes among other things.

This package aims to provide algorithms optimized to leverage advanced instruction sets of modern CPUs to maximize throughput and take the best advantage of the available compute power. It includes functions that have often been designed to work on arrays of values, which is where SIMD and branchless algorithms shine.

This package allows for a cgo argument to be passed a Go pointer.

Blackfriday is a Markdown processor in Go.

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

This package provides a native Go clean room implementation of the Porter Stemming Algorithm.

This package provides an implementation of the Unicode Text Segmentation specification for Go. Specifically, it currently includes only the grapheme cluster segmentation algorithm.

This package provides a cross-platform facility for creating temporary files that are automatically cleaned up (even in the event of an unexpected process exit).

Package kong aims to support arbitrarily complex command-line structures with as little developer effort as possible.

This package provides traditional getopt processing for implementing programs that use traditional command lines.

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

This package provides a Julia grammar for tree-sitter bindings in Golang.

This package implements a reflection-free, zero-allocation JSON encoder, and the base Logger strives to avoid serialization overhead and allocations wherever possible. By building the high-level SugaredLogger on that foundation, zap lets users choose when they need to count every allocation and when they'd prefer a more familiar, loosely typed API.

Chroma takes source code and other structured text and converts it into syntax highlighted HTML, ANSI-coloured text, etc.

go-humanize provides formatters for units to human friendly sizes. It converts boring ugly numbers to human-friendly strings and back.

Package times provides a platform-independent way to get atime, mtime,ctime and btime for files.

This package provides fast methods for formatting JSON for human readability, or to compact JSON for smaller payloads.

This package provides an implementation of the Unicode Text Segmentation specification for Go. Specifically, it currently includes only the grapheme cluster segmentation algorithm.

Utilities to prettify console output of tables, lists, progress-bars, text, etc. with a heavy emphasis on customization.

reflectwalk is a Go library for "walking" a value in Go using reflection, in the same way a directory tree can be "walked" on the file system. Walking a complex structure can allow you to do manipulations on unknown structures such as those decoded from JSON.

Package circllhist provides an implementation of Circonus fixed log-linear histogram data structure. This allows tracking of histograms in a composable way such that accurate error can be reasoned about.

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