Developer tools that never see your data
lovable.tools is a privacy-first toolbox for developers: regex tester, cron builder, JWT decoder, UUID generator, JSON formatter, Base64, hashing, timestamp, URL, password generator, SQL formatter, diff checker, color converter, YAML/CSV converters, QR code generator and timezone converter. Everything runs entirely in your browser - your data never touches a server.
Regex Tester
Test and debug regular expressions live
TextCron Expression Builder
Build and decode cron schedules interactively
TimeJWT Decoder
Decode and inspect JSON Web Tokens
EncodingUUID Generator
Generate UUIDs and ULIDs in bulk
GeneratorsJSON Formatter
Format, validate and minify JSON
FormattersBase64 Encoder / Decoder
Encode and decode Base64, including files
EncodingHash Generator
Compute SHA and MD5 hashes
GeneratorsTimestamp Converter
Convert between Unix time and dates
TimeURL Encoder / Decoder
Encode, decode and parse URLs
EncodingPassword Generator
Generate strong, random passwords
GeneratorsQR Code Generator
Create QR codes from text or links
GeneratorsSQL Formatter
Format and beautify SQL queries
FormattersDiff Checker
Compare two texts line by line
TextColor Converter
Convert between HEX, RGB and HSL
ConvertersYAML to JSON Converter
Convert between YAML and JSON
ConvertersCSV to JSON Converter
Convert between CSV and JSON
ConvertersTimezone Converter
Convert a time across time zones
Time