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To Spring Boot System Env Variable

How does it work?

This tool converts text to Spring Boot environment variable format. Spring Boot allows you to override configuration properties using environment variables by following these conversion rules:

All letters are converted to uppercase
Dots (.), hyphens (-), and spaces are converted to underscores (_)
CamelCase is converted to SNAKE_CASE (e.g., camelCase becomes CAMEL_CASE)

For example, "spring.datasource.url" becomes "SPRING_DATASOURCE_URL", and "app.feature.enabled" becomes "APP_FEATURE_ENABLED".

Examples of Spring Boot environment variable conversion

Original property names

spring.datasource.url
spring.datasource.username
server.port
app.feature.enabled
logging.level.root
my-custom-property
nested.property.with.dots
camelCaseProperty
PascalCaseExample

Converted to environment variables

SPRING_DATASOURCE_URL
SPRING_DATASOURCE_USERNAME
SERVER_PORT
APP_FEATURE_ENABLED
LOGGING_LEVEL_ROOT
MY_CUSTOM_PROPERTY
NESTED_PROPERTY_WITH_DOTS
CAMEL_CASE_PROPERTY
PASCAL_CASE_EXAMPLE

This conversion is particularly useful when:

Setting up Spring Boot applications in containerized environments (Docker, Kubernetes)
Configuring CI/CD pipelines with environment variables
Following the twelve-factor app methodology for configuration
Overriding application.properties or application.yml settings via environment variables

For example, if your application.properties has spring.datasource.url=jdbc:mysql://localhost/db, you can override it with an environment variable named SPRING_DATASOURCE_URL.

Other tools

See other tools

Text tools

Decode base64 text Base64 encode text Trim whitespaces Decode URL text URL encode text Change text to uppercase Change text to lowercase Count words, lines, paragraphs

Encode/Decode

Encode text to MD5 Hex Encode text to SHA-1 Hex Encode text to SHA-256 Hex Encode text to SHA-512 Hex Encode text to SHA3-256 Hex Encode text to SHA3-512 Hex Encode text as URL Decode URL text Encode text to Base64 Decode Base64 text Encode text to Hex Decode Hex text ISO Timestamp to Epoch Milliseconds Epoch Milliseconds to ISO Timestamp

Increment/Decrement

Increment all numbers Decrement all numbers Duplicate and increment numbers Duplicate and decrement numbers Create sequence Increment duplicate numbers

Sort

Reverse order of lines Shuffle lines Sort case-sensitive A-z Sort case-sensitive z-A Sort case-insensitive A-Z Sort case-insensitive Z-A Sort line length ascending Sort line length descending Sort hexadecimally Sort lines by subselection Sort tokens Shuffle Characters JSON sort Hierarchical sort

Align

Align carets/selections Format text to columns/table Align text to left Align text to center Align text to right

Filter/Remove/Trim

Grep Inverted Grep Group by Grep Trim Trim Leading Trim Trailing Replace whitespaces with space Remove all spaces Remove duplicates Keep only duplicate lines Group and Count Remove empty lines Remove consecutive empty lines Remove all newlines

Convert/Minify

Convert Between Char and Int Minify JSON Minify JavaScript Convert Between JSON and YAML

Other

Reverse Letters Swap Words Swap Characters/Selections/Lines/Tokens Wrap or shift quotes Swap between quotes Straighten/Educate quotes Switch file path separators Select All Occurrences For All Carets Extend Selection in Different Mode Multi Replace Duplicate and Multi Replace Paste - camelCased Paste - and Keep Selections Create Border