Case Converter Online — camelCase snake_case kebab
Convert identifiers between camelCase, PascalCase, snake_case, SCREAMING_SNAKE, and kebab-case with live preview. Optional per-line mode for bulk lists — Unicode letters stay as-is.
How conversion works
Paste an identifier or phrase, pick the target case — the result updates as you type. Digits stay attached to the preceding letter run (foo2Bar → foo2 + Bar). Enable Convert each line when you paste a newline-separated list: every non-empty line is converted independently; blank lines are preserved. Empty input → explicit error.
Options
- Target case
- camel, Pascal, snake, SCREAMING_SNAKE, or kebab — changes the output for real.
Examples
snake → Pascal
Input
Output
camel → SCREAMING
Input
Output
Related utilities
For URL slugs, use Slugify (separators + diacritics). This converter keeps identifier semantics.
Case converter FAQ
Identifiers
How is this different from Slugify?
Slugify builds URL slugs (separators, accents). This tool converts identifier case without diacritic stripping.
Title Case / dot.case?
Out of scope for v1 — only camel, Pascal, snake, SCREAMING_SNAKE, kebab.
Empty input?
Returns an empty error — never a silent success.
Are accents stripped?
No — caféBar keeps café inside the token.
Which scripts are supported?
Tokenization targets Latin letters (A–Z and Latin Extended, e.g. café). Non-Latin scripts (CJK, etc.) do not form tokens and may yield an empty error.
When should I use per-line mode?
When you paste several identifiers separated by newlines — each line converts independently instead of treating newlines as word separators in one blob.
Developer utilities
Timestamps, UUID, ULID, Nanoid, cron, passwords, regex, slugify, number bases, case, text diff, and chmod — all client-side.
Explore other tool categories
- Minify
Shrink code and assets for production — minify JavaScript, CSS, HTML, JSON and XML before gzip or CDN deploy.
- Unminify
Expand minified or compressed code — unminify JavaScript, CSS, TypeScript, SCSS, LESS, SQL, YAML and other formats when debugging or reviewing.
- Conversion
Transform data between JSON, YAML, XML and CSV locally — no server uploads.
- Encoding
Encode or decode Base64, URL components and HTML entities — client-side only.
- Serialization
Serialize and deserialize PHP data structures beside JSON workflows.
- JSON Tools
Validate, format, diff and explore JSON payloads — complementary to minifiers and converters.
- SVG Tools
Preview, optimize with SVGO, export Data URI, resize, beautify, convert to JSX and validate SVG — all in your browser.
- Beautify
Make code readable with consistent indentation — beautify JavaScript, CSS, TypeScript, SCSS, LESS, Markdown, GraphQL, SQL, YAML and more in your browser.
- CSS preprocessors
Compile SCSS or LESS to standard CSS in the browser — pair with beautify or minify for a full stylesheet workflow.
- Color & CSS Tools
Paste-local WCAG contrast checking with modern CSS color syntax — pair and matrix views, never uploaded.
- DevOps & Infra
Terraform HCL format/validate/minify, Dockerfile format & lint, Docker Compose and .env validation.
- CI/CD
GitHub Actions and GitLab CI — format YAML and check workflow/job structure in your browser.
- Logs & observability
Line-oriented JSON/NDJSON and Nginx/Apache access logs — format, filter, validate, and CSV/TSV.
- Kubernetes
Multi-doc manifests, structural validate, Ingress/Deployment starters, and Helm values formatting.
- Networking / IP
CIDR, subnets, and IPv4/IPv6 helpers — in your browser.
- Security & tokens
JWKS, X.509 certificates, and secrets scan — browser-local.
- API & schemas
OpenAPI tools to format, validate, and lint your specs.
- HTTP Tools
Paste-local cURL, HTTP messages, URLs, HAR files, and Cookie / Set-Cookie headers — format and inspect in your browser, never sent.
- SEO / Web Tools
Generate meta tags, Open Graph, and Twitter Card output locally — previews simulated from your inputs, never fetched from your live site.
- Text & Markdown
Count words, build Markdown TOCs, and clean line lists — all in your browser.
- AI & LLM
Token counting, pricing estimates, and context-window fit — 100% browser-local.
- Test Data
Synthetic field values for fixtures and DB seed — reserved-range phone numbers first.
- Barcode labels
Draw Code 128, EAN-13, and UPC-A label images in the browser — PNG and SVG download, not a GS1 lookup.