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JSON Formatter & Validator
Beautify, minify and validate JSON with clear errors.
Base64 Encoder / Decoder
Convert text to Base64 and back, UTF-8 safe.
URL Encoder / Decoder
Percent-encode or decode URLs and query values.
UUID Generator
Generate random version 4 UUIDs in bulk.
HTML Email Builder & Tester
Build and preview responsive HTML emails.
JSON Schema Generator & Validator
Generate a schema from JSON and validate against it.
CSS to Tailwind Converter
Map CSS declarations to Tailwind utility classes.
Realistic Test Data Generator
Create synthetic CSV, JSON and XLSX datasets.