diff --git a/README.md b/README.md
index 4ba643c..6f5630b 100644
--- a/README.md
+++ b/README.md
@@ -48,3 +48,44 @@ dependencies {
 
 Instructions for using with Maven, Ivy, etc. can be found on [Maven Central](https://maven-badges.herokuapp.com/maven-central/net.thauvin.erik/urlencoder).
 
+## Standalone usage
+
+UrlEncoder can be used on the command line also, both for encoding and decoding.
+
+You have two options:
+* run it with Gradle
+* build the jar and launch it with Java
+
+The usage is as follows:
+
+```
+Encode and decode URL parameters.
+  -e  encode (default)
+  -d  decode
+```
+
+### Running with Gradle
+
+```shell
+./gradlew run --args="-e 'a test &'"        # -> a%20test%20%26
+./gradlew run --args="%#okékÉȢ"             # -> %25%23ok%C3%A9k%C3%89%C8%A2
+
+./gradlew run --args="-d 'a%20test%20%26'"  # -> a test &
+```
+
+### Running with Java
+
+First build the jar file:
+
+```shell
+./gradlew clean fatJar
+```
+
+Then run it:
+
+```shell
+java -jar lib/build/libs/urlencoder-*all.jar -e "a test &"       # -> a%20test%20%26
+java -jar lib/build/libs/urlencoder-*all.jar "%#okékÉȢ"          # -> %25%23ok%C3%A9k%C3%89%C8%A2
+
+java -jar lib/build/libs/urlencoder-*.all.jar -d "a%20test%20%26" # -> a test &
+```
diff --git a/lib/build.gradle.kts b/lib/build.gradle.kts
index c13aa61..e783c63 100644
--- a/lib/build.gradle.kts
+++ b/lib/build.gradle.kts
@@ -23,7 +23,7 @@ plugins {
 
 description = "A simple library to encode/decode URL parameters"
 group = "net.thauvin.erik"
-version = "1.0.0"
+version = "1.0.1-SNAPSHOT"
 
 
 val mavenName = "UrlEncoder"
@@ -81,6 +81,22 @@ tasks {
         }
     }
 
+    val fatJar = register<Jar>("fatJar") {
+        group = "build"
+        dependsOn.addAll(listOf("compileJava", "compileKotlin", "processResources"))
+        archiveClassifier.set("all")
+        duplicatesStrategy = DuplicatesStrategy.EXCLUDE
+        manifest { attributes(mapOf("Main-Class" to application.mainClass)) }
+        val sourcesMain = sourceSets.main.get()
+        val contents = configurations.runtimeClasspath.get()
+            .map { if (it.isDirectory) it else zipTree(it) } + sourcesMain.output
+        from(contents)
+    }
+
+    build {
+        dependsOn(fatJar)
+    }
+
     withType<KotlinCompile>().configureEach {
         kotlinOptions.jvmTarget = java.targetCompatibility.toString()
     }
diff --git a/lib/pom.xml b/lib/pom.xml
index aa83f57..7e4dcc3 100644
--- a/lib/pom.xml
+++ b/lib/pom.xml
@@ -8,7 +8,7 @@
   <modelVersion>4.0.0</modelVersion>
   <groupId>net.thauvin.erik</groupId>
   <artifactId>urlencoder</artifactId>
-  <version>1.0.0</version>
+  <version>1.0.1-SNAPSHOT</version>
   <name>UrlEncoder</name>
   <description>A simple library to encode/decode URL parameters</description>
   <url>https://github.com/ethauvin/urlencoder</url>
diff --git a/lib/src/main/kotlin/net/thauvin/erik/urlencoder/UrlEncoder.kt b/lib/src/main/kotlin/net/thauvin/erik/urlencoder/UrlEncoder.kt
index 02c3763..4a28780 100644
--- a/lib/src/main/kotlin/net/thauvin/erik/urlencoder/UrlEncoder.kt
+++ b/lib/src/main/kotlin/net/thauvin/erik/urlencoder/UrlEncoder.kt
@@ -32,7 +32,7 @@ import kotlin.system.exitProcess
 object UrlEncoder {
     private val hexDigits = "0123456789ABCDEF".toCharArray()
     internal val usage =
-        "Usage : kotlin -cp urlencoder-*.jar ${UrlEncoder::class.java.name} [-ed] text" + System.lineSeparator() +
+        "Usage : java -jar urlencoder-*all.jar [-ed] text" + System.lineSeparator() +
                 "Encode and decode URL parameters." + System.lineSeparator() + "  -e  encode (default) " +
                 System.lineSeparator() + "  -d  decode"