diff --git a/src/base.ts b/src/headless/base.ts
similarity index 100%
rename from src/base.ts
rename to src/headless/base.ts
diff --git a/src/camel-case.ts b/src/headless/camel-case.ts
similarity index 100%
rename from src/camel-case.ts
rename to src/headless/camel-case.ts
diff --git a/src/capitalize.ts b/src/headless/capitalize.ts
similarity index 100%
rename from src/capitalize.ts
rename to src/headless/capitalize.ts
diff --git a/src/kebab.ts b/src/headless/kebab.ts
similarity index 100%
rename from src/kebab.ts
rename to src/headless/kebab.ts
diff --git a/src/lorem.ts b/src/headless/lorem.ts
similarity index 100%
rename from src/lorem.ts
rename to src/headless/lorem.ts
diff --git a/src/lower-case.ts b/src/headless/lower-case.ts
similarity index 100%
rename from src/lower-case.ts
rename to src/headless/lower-case.ts
diff --git a/src/random-case.ts b/src/headless/random-case.ts
similarity index 100%
rename from src/random-case.ts
rename to src/headless/random-case.ts
diff --git a/src/snake-case.ts b/src/headless/snake-case.ts
similarity index 100%
rename from src/snake-case.ts
rename to src/headless/snake-case.ts
diff --git a/src/start-case.ts b/src/headless/start-case.ts
similarity index 100%
rename from src/start-case.ts
rename to src/headless/start-case.ts
diff --git a/src/to-upper.ts b/src/headless/to-upper.ts
similarity index 100%
rename from src/to-upper.ts
rename to src/headless/to-upper.ts
diff --git a/src/trim-end.ts b/src/headless/trim-end.ts
similarity index 100%
rename from src/trim-end.ts
rename to src/headless/trim-end.ts
diff --git a/src/trim-start.ts b/src/headless/trim-start.ts
similarity index 100%
rename from src/trim-start.ts
rename to src/headless/trim-start.ts
diff --git a/src/trim.ts b/src/headless/trim.ts
similarity index 100%
rename from src/trim.ts
rename to src/headless/trim.ts
diff --git a/src/uis/pad.ts b/src/preference/pad.ts
similarity index 100%
rename from src/uis/pad.ts
rename to src/preference/pad.ts
diff --git a/src/uis/truncate.ts b/src/preference/truncate.ts
similarity index 100%
rename from src/uis/truncate.ts
rename to src/preference/truncate.ts