Why this tool exists
Case Converter keeps marketing copy, API identifiers, and configuration keys synchronized. Every form submission runs through the same PHP service powering the live tool, so the cards in the right column always match production logic.
Product copy reviews
Mirror marketing headlines across APA, title, and headline rules before publishing landing pages.
API contract naming
Compare camel, snake, and kebab case strings so SDKs and OpenAPI specs stay consistent.
Config & env hygiene
Generate SCREAMING snake case or lowercase toggles for .env files, Terraform, and CI secrets.
Quick start
Paste copy once, toggle the case styles you need, and let the sidebar mirror every change in real time.
- Open the Case Converter tool, paste text into the textarea (or load a preset), and glance at the default case selections.
- Toggle the case styles you need using the checkbox grid or the Select all shortcut—at least one style is always active so every submission returns output.
- Submit the form to refresh the conversions in place; copy the variants you need directly from the cards without leaving the page.
Supported inputs
- Accepts plain text paragraphs, punctuation, code-like identifiers, emoji, and numbers—only casing changes, never punctuation or spacing.
- Preserves line breaks and consecutive spaces so multi-line copy blocks stay readable after conversion.
- Every run uses the same conversion engine, ensuring repeatable results between browser sessions.
Mode 01
Form workflow
- Paste or type text into the Source input (or pick a quick preset) and lean on the helper note for formatting reminders.
- Use the case style checkboxes to build your lineup—labels explain when to use each style, and the Select all button instantly enables everything.
- Reset brings the form back to the state you first loaded, while applying a preset swaps both the sample text and recommended modes at once.
- Click Convert text to submit; the response rehydrates the form, keeps your last input, and updates the results sidebar with matching cards.
Mode 02
Case mode library
- Uppercase and lowercase variants keep editorial reviews fast when you need to normalize shouting or whispering copy.
- Title, headline, and APA title case lean on built-in helpers (including APA rules) so brand guidelines match every time.
- camelCase and StudlyCase outputs help align component props, backend methods, and JSON keys during code reviews.
- snake_case, SCREAMING_SNAKE, and kebab-case ensure config files, CLI flags, and URL slugs follow predictable delimiters.
Presets & samples
Quick presets highlight best-practice combos (marketing, API naming, constants, lowercase cleanups) so you can demo workflows without retyping.
- Product headline preset showcases APA + classic title case for marketing copy polish.
- API naming preset compares camel, snake, kebab, and studly case so backend and frontend teams stay aligned.
- Baseline lowercase preset strips inconsistent casing when editing long-form content or support notes.
- Environment constant preset flips identifiers into SCREAMING snake case for configuration files.
Outputs & copy
Each selected case style renders a dedicated card with copy helpers, so you can batch identifiers for pull requests and docs updates.
Every conversion card shows the label, a short description, and the transformed text so you know when to use it.
Copy buttons trigger a visual indicator so you can see which variant already hit your clipboard.
Hiding or showing case styles instantly reorders the cards without reloading, making comparisons feel snappy.
Field notes
Habits that make naming reviews faster for writers and engineers.
- Keep your go-to case styles enabled and tap Select all only when auditing entire naming libraries.
- Use presets before copying if you want to demonstrate a workflow—each preset applies its recommended modes automatically.
- Pair Case Converter with Counting + Stats or Sorting Tools when preparing copy decks for publication.
- Remember that the textarea preserves whitespace, so it is safe to paste markdown lists or indented JSON comments.