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Validation & parsing

JSON Validator & Formatter
XML Validator & Formatter
YAML Validator & Formatter
TOML validator
CSV validator
Cron expression parser
Regex tester
JSONPath tester
JSON Schema validator

Formatting

CSS beautifier
CSS minifier
JavaScript minifier
HTML formatter
HTML minifier
Markdown formatter
SQL formatter
JavaScript beautifier

Conversion

Format converters
Markdown to HTML
JSON to TypeScript
JSON to Go structs
HTML to Markdown
JSON and CSV converter
JSON and XML converter
HTML entities encoder
Number base converter
Timestamp converter
Color converter

Security

JWT Decoder
SSL/TLS Certificate Validator
Hash generator
HMAC generator
Password generator
Password strength checker
RSA key pair generator
ECDSA key pair generator
Ed25519 key pair generator

Generators

UUID generator
ULID generator
NanoID generator
Lorem Ipsum generator
QR code generator
Barcode generator
robots.txt generator
Sitemap generator
.gitignore generator
Dockerfile generator
Cron expression generator
Regex generator

Text tools

Word counter
Text case converter
Remove duplicate lines
Sort lines
Trim lines
Slug generator
Palindrome checker
String escape and unescape
Diff checker

Regex generator

Derive a regular expression from example strings and check it against counter-examples.

Examples to match

Counter-examples

Anchor the pattern, ^ and $

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JSON Validator & Formatter Validation & parsing
XML Validator & Formatter Validation & parsing
YAML Validator & Formatter Validation & parsing
TOML validator Validation & parsing
CSV validator Validation & parsing
Cron expression parser Validation & parsing
Regex tester Validation & parsing
JSONPath tester Validation & parsing
JSON Schema validator Validation & parsing
CSS beautifier Formatting
CSS minifier Formatting
JavaScript minifier Formatting
HTML formatter Formatting
HTML minifier Formatting
Markdown formatter Formatting
SQL formatter Formatting
JavaScript beautifier Formatting
Format converters Conversion
Markdown to HTML Conversion
JSON to TypeScript Conversion
JSON to Go structs Conversion
HTML to Markdown Conversion
JSON and CSV converter Conversion
JSON and XML converter Conversion
HTML entities encoder Conversion
Number base converter Conversion
Timestamp converter Conversion
Color converter Conversion
JWT Decoder Security
SSL/TLS Certificate Validator Security
Hash generator Security
HMAC generator Security
Password generator Security
Password strength checker Security
RSA key pair generator Security
ECDSA key pair generator Security
Ed25519 key pair generator Security
UUID generator Generators
ULID generator Generators
NanoID generator Generators
Lorem Ipsum generator Generators
QR code generator Generators
Barcode generator Generators
robots.txt generator Generators
Sitemap generator Generators
.gitignore generator Generators
Dockerfile generator Generators
Cron expression generator Generators
Regex generator Generators
Word counter Text tools
Text case converter Text tools
Remove duplicate lines Text tools
Sort lines Text tools
Trim lines Text tools
Slug generator Text tools
Palindrome checker Text tools
String escape and unescape Text tools
Diff checker Text tools

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