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Title: GitHub - knadh/koanf: Simple, extremely lightweight, extensible, configuration management library for Go. Supports JSON, TOML, YAML, env, command line, file, S3 etc. Alternative to viper.

Open Graph Title: GitHub - knadh/koanf: Simple, extremely lightweight, extensible, configuration management library for Go. Supports JSON, TOML, YAML, env, command line, file, S3 etc. Alternative to viper.

X Title: GitHub - knadh/koanf: Simple, extremely lightweight, extensible, configuration management library for Go. Supports JSON, TOML, YAML, env, command line, file, S3 etc. Alternative to viper.

Description: Simple, extremely lightweight, extensible, configuration management library for Go. Supports JSON, TOML, YAML, env, command line, file, S3 etc. Alternative to viper. - knadh/koanf

Open Graph Description: Simple, extremely lightweight, extensible, configuration management library for Go. Supports JSON, TOML, YAML, env, command line, file, S3 etc. Alternative to viper. - knadh/koanf

X Description: Simple, extremely lightweight, extensible, configuration management library for Go. Supports JSON, TOML, YAML, env, command line, file, S3 etc. Alternative to viper. - knadh/koanf

Opengraph URL: https://github.com/knadh/koanf

X: @github

direct link

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MIT license https://github.com/knadh/koanf/blob/master/LICENSE
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Code https://github.com/knadh/koanf
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Wiki https://github.com/knadh/koanf/wiki
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Code https://github.com/knadh/koanf
Issues https://github.com/knadh/koanf/issues
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380 Commitshttps://github.com/knadh/koanf/commits/master/
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getters.gohttps://github.com/knadh/koanf/blob/master/getters.go
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interfaces.gohttps://github.com/knadh/koanf/blob/master/interfaces.go
koanf.gohttps://github.com/knadh/koanf/blob/master/koanf.go
koanf.gohttps://github.com/knadh/koanf/blob/master/koanf.go
options.gohttps://github.com/knadh/koanf/blob/master/options.go
options.gohttps://github.com/knadh/koanf/blob/master/options.go
READMEhttps://github.com/knadh/koanf
MIT licensehttps://github.com/knadh/koanf
https://zerodha.tech
https://user-images.githubusercontent.com/547147/72681838-6981dd00-3aed-11ea-8f5d-310816c70c08.png
alternative to spf13/viperhttps://github.com/knadh/koanf#alternative-to-viper
https://github.com/knadh/koanf/actions/workflows/test.yml
https://pkg.go.dev/github.com/knadh/koanf/v2
https://github.com/knadh/koanf#installation
See the listhttps://github.com/knadh/koanf#api
https://github.com/knadh/koanf#contents
Conceptshttps://github.com/knadh/koanf#concepts
Reading config from fileshttps://github.com/knadh/koanf#reading-config-from-files
Watching file for changeshttps://github.com/knadh/koanf#watching-file-for-changes
Reading from command linehttps://github.com/knadh/koanf#reading-from-command-line
Reading environment variableshttps://github.com/knadh/koanf#reading-environment-variables
Reading from an S3 buckethttps://github.com/knadh/koanf#reading-from-an-s3-bucket
Reading raw byteshttps://github.com/knadh/koanf#reading-raw-bytes
Reading from maps and structshttps://github.com/knadh/koanf#reading-from-nested-maps
Unmarshalling and marshallinghttps://github.com/knadh/koanf#unmarshalling-and-marshalling
Order of merge and key case sensitivityhttps://github.com/knadh/koanf#order-of-merge-and-key-case-sensitivity
Custom Providers and Parsershttps://github.com/knadh/koanf#custom-providers-and-parsers
Custom merge strategieshttps://github.com/knadh/koanf#custom-merge-strategies
List of installable Providers and Parsershttps://github.com/knadh/koanf#api
https://github.com/knadh/koanf#concepts
https://github.com/knadh/koanf#reading-config-from-files
https://github.com/knadh/koanf#watching-file-for-changes
https://github.com/knadh/koanf#reading-from-command-line
spf13/pflaghttps://github.com/spf13/pflag
https://github.com/knadh/koanf#reading-environment-variables
https://github.com/knadh/koanf#reading-from-an-s3-bucket
https://github.com/knadh/koanf#reading-raw-bytes
https://github.com/knadh/koanf#unmarshalling-and-marshalling
https://github.com/knadh/koanf#unmarshalling-with-flat-paths
https://github.com/knadh/koanf#reading-from-nested-maps
https://github.com/knadh/koanf#reading-from-struct
https://github.com/knadh/koanf#merge-behavior
https://github.com/knadh/koanf#default-behavior
https://github.com/knadh/koanf#order-of-merge-and-key-case-sensitivity
https://github.com/knadh/koanf#custom-providers-and-parsers
providershttps://github.com/knadh/koanf/tree/master/providers
parsershttps://github.com/knadh/koanf/tree/master/parsers
https://github.com/knadh/koanf#custom-merge-strategies
https://github.com/knadh/koanf#api
https://pkg.go.dev/github.com/knadh/koanf/v2#section-documentationhttps://pkg.go.dev/github.com/knadh/koanf/v2#section-documentation
https://github.com/knadh/koanf#bundled-providers
https://github.com/knadh/koanf#bundled-parsers
Read morehttps://github.com/hashicorp/hcl/issues/162
https://github.com/knadh/koanf#third-party-providers
https://github.com/knadh/koanf#alternative-to-viper
lightweighthttps://github.com/knadh/koanf/blob/master/go.mod
spf13/viperhttps://github.com/spf13/viper
forcibly lowercasing keyshttps://github.com/spf13/viper/pull/635
build sizeshttps://github.com/knadh/koanf/wiki/Comparison-with-spf13-viper
third party dependencieshttps://github.com/spf13/viper/issues/707
throwing away O(1) on flat mapshttps://github.com/spf13/viper/blob/3b4aca75714a37276c4b1883630bd98c02498b73/viper.go#L1524
open issueshttps://github.com/spf13/viper/issues
config https://github.com/topics/config
go https://github.com/topics/go
golang https://github.com/topics/golang
yaml https://github.com/topics/yaml
toml https://github.com/topics/toml
configuration https://github.com/topics/configuration
s3-bucket https://github.com/topics/s3-bucket
configuration-management https://github.com/topics/configuration-management
viper https://github.com/topics/viper
config-loader https://github.com/topics/config-loader
configuration-file https://github.com/topics/configuration-file
golang-package https://github.com/topics/golang-package
etcd-client https://github.com/topics/etcd-client
Readme https://github.com/knadh/koanf#readme-ov-file
MIT license https://github.com/knadh/koanf#MIT-1-ov-file
Please reload this pagehttps://github.com/knadh/koanf
Activityhttps://github.com/knadh/koanf/activity
3.7k starshttps://github.com/knadh/koanf/stargazers
23 watchinghttps://github.com/knadh/koanf/watchers
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Report repository https://github.com/contact/report-content?content_url=https%3A%2F%2Fgithub.com%2Fknadh%2Fkoanf&report=knadh+%28user%29
Releases 24https://github.com/knadh/koanf/releases
v2.3.0 Latest Sep 15, 2025 https://github.com/knadh/koanf/releases/tag/v2.3.0
+ 23 releaseshttps://github.com/knadh/koanf/releases
Used by 3.9khttps://github.com/knadh/koanf/network/dependents
+ 3,936 https://github.com/knadh/koanf/network/dependents
Contributors 59https://github.com/knadh/koanf/graphs/contributors
https://github.com/knadh
https://github.com/apps/dependabot
https://github.com/rhnvrm
https://github.com/gozeloglu
https://github.com/grount
https://github.com/mvrahden
https://github.com/misantron
https://github.com/aeneasr
https://github.com/amarlearning
https://github.com/mkvolkov
https://github.com/john-behm-bertelsmann
https://github.com/missedone
https://github.com/npillmayer
https://github.com/mr-karan
+ 45 contributorshttps://github.com/knadh/koanf/graphs/contributors
Go 99.6% https://github.com/knadh/koanf/search?l=go
HCL 0.4% https://github.com/knadh/koanf/search?l=hcl
https://github.com
Termshttps://docs.github.com/site-policy/github-terms/github-terms-of-service
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Securityhttps://github.com/security
Statushttps://www.githubstatus.com/
Communityhttps://github.community/
Docshttps://docs.github.com/
Contacthttps://support.github.com?tags=dotcom-footer

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