A cross-platform, cli app to perform various operations on string.

* Base64Encode * Base64Decode * URLEncode * URLDecode * ROT13Encode * StringToTitle * StringToLower * StringToUpper * StringToSnakeCase * StringToKebab * StringToSlug * StringToCamel * StringReverse * CountNumberCharacters * MD5Encode * SHA1Encode * SHA256Encode * SHA512Encode * FormatJSON * JSONToYAML * YAMLToJSON * HexToRGB * SortLines * and adding more....

Programming language: Go
License: MIT License
Tags: Productivity     Command Line     Tools     CLI    

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Website | Install | Getting Started | CLI Reference | Source Code

sttr is command line software that allows you to quickly run various transformation operations on the string.

// With input prompt

// Direct input
sttr md5 "Hello World"

// File input
sttr md5 file.text
sttr base64-encode image.jpg

// Reading from different processor like cat, curl, printf etc..
echo "Hello World" | sttr md5
cat file.txt | sttr md5

// Writing output to a file
sttr yaml-json file.yaml > file-output.json

:movie_camera: Demo

[sttr demo](./media/demo.gif)

:battery: Installation

Quick install

You can run the below curl to install it somewhere in your PATH for easy use. Ideally it will be installed at ./bin folder

curl -sfL https://raw.githubusercontent.com/abhimanyu003/sttr/main/install.sh | sh


If you are on macOS and using Homebrew, you can install sttr with the following:

brew tap abhimanyu003/sttr
brew install sttr


sudo snap install sttr


go install github.com/abhimanyu003/sttr@latest


Download the pre-compiled binaries from the Release! page and copy them to the desired location.

:books: Guide

  • After installation simply run sttr command.
// For interactive menu
// Provide your input
// Press two enter to open operation menu
// Press `/` to filter various operations.
// Can also press UP-Down arrows select various operations.
  • Working with help.
sttr -h

// Example
sttr zeropad -h
sttr md5 -h
  • Working with files input.
sttr {command-name} {filename}

sttr base64-encode image.jpg
sttr md5 file.txt
sttr md-html Readme.md
  • Writing output to file.
sttr yaml-json file.yaml > file-output.json
  • Taking input from other command.
curl https: //jsonplaceholder.typicode.com/users | sttr json-yaml
  • Chaining the different processor.
sttr md5 hello | sttr base64-encode

echo "Hello World" | sttr base64-encode | sttr md5

:boom: Supported Operations


  • [x] ascii85-encode - Encode your text to ascii85
  • [x] ascii85-decode - Decode your ascii85 text
  • [x] base32-decode - Decode your base32 text
  • [x] base32-encode - Encode your text to base32
  • [x] base64-decode - Decode your base64 text
  • [x] base64-encode - Encode your text to base64
  • [x] base85-encode - Encode your text to base85
  • [x] base85-decode - Decode your base85 text
  • [x] base64url-decode - Decode your base64 url
  • [x] base64url-encode - Encode your text to url
  • [x] html-decode - Unescape your HTML
  • [x] html-encode - Escape your HTML
  • [x] rot13-encode - Encode your text to ROT13
  • [x] url-decode - Decode URL entities
  • [x] url-encode - Encode URL entities


  • [x] bcrypt - Get the Bcrypt hash of your text
  • [x] md5 - Get the MD5 checksum of your text
  • [x] sha1 - Get the SHA1 checksum of your text
  • [x] sha256 - Get the SHA256 checksum of your text
  • [x] sha512 - Get the SHA512 checksum of your text


  • [x] camel - Transform your text to CamelCase
  • [x] kebab - Transform your text to kebab-case
  • [x] lower - Transform your text to lower case
  • [x] reverse - Reverse Text ( txeT esreveR )
  • [x] slug - Transform your text to slug-case
  • [x] snake - Transform your text to snake_case
  • [x] title - Transform your text to Title Case
  • [x] upper - Transform your text to UPPER CASE


  • [x] count-lines - Count the number of lines in your text
  • [x] reverse-lines - Reverse lines
  • [x] shuffle-lines - Shuffle lines randomly
  • [x] sort-lines - Sort lines alphabetically
  • [x] unique-lines - Get unique lines from list


  • [x] count-chars - Find the length of your text (including spaces)
  • [x] count-lines - Count the number of lines in your text
  • [x] count-words - Count the number of words in your text


  • [x] hex-rgb - Convert a #hex-color code to RGB
  • [x] hex-encode - Encode your text Hex
  • [x] hex-decode - Convert Hexadecimal to String


  • [x] json - Format your text as JSON
  • [x] json-escape - JSON Escape
  • [x] json-unescape - JSON Unescape
  • [x] json-yaml - Convert JSON to YAML text
  • [x] json-msgpack - Convert JSON to MSGPACK
  • [x] msgpack-json - Convert MSGPACK to JSON


  • [x] yaml-json - Convert YAML to JSON text


  • [x] markdown-html - Convert Markdown to HTML


  • [x] extract-emails - Extract emails from given text
  • [x] extract-ip - Extract IPv4 and IPv6 from your text


  • [x] completion - generate the autocompletion script for the specified shell
  • [x] interactive - Use sttr in interactive mode
  • [x] version - Print the version of sttr
  • [x] zeropad - Pad a number with zeros
  • [x] and adding more....


This project welcomes your PR and issues. For example, refactoring, adding features, correcting English, etc.

A quick development guide can be found on. Developer-Guides wiki page.

If you need any help, you can contact me on Twitter.

Thanks to all the people who already contributed!



*Note that all licence references and agreements mentioned in the sttr README section above are relevant to that project's source code only.