23+ privacy-first online tools that run entirely in your browser. No signup, no data upload, no tracking.
Convert JSON to TypeScript interfaces instantly.
ConverterDecode and inspect JWT tokens in your browser.
DebuggerBeautify and format SQL queries instantly.
FormatterTest and visualize regular expressions live.
TesterCompare two JSON objects and see differences.
ComparerVisualize cron expressions with human-readable output.
SchedulerConvert Markdown to clean HTML instantly.
ConverterConvert CSV data to JSON format instantly.
ConverterCreate and format Markdown tables visually.
GeneratorEncode and decode Base64 strings and images.
EncoderExtract clean Markdown from PDF files.
ConverterCreate free QR codes for URLs, WiFi, text. No watermark.
GeneratorPreview Open Graph and Twitter card tags.
PreviewCalculate hourly rate to annual salary.
CalculatorEstimate Solana transaction priority fees.
CryptoCalculate slippage and trading fees for token swaps.
CryptoCheck if a Solana token is a honeypot before buying.
SecurityEstimate costs to launch a token on Solana.
CryptoTrack Solana whale wallets and smart money flows.
CryptoEstimate LLM API costs for AI agent workflows.
AICalculate meme coin ROI and slippage on Solana.
Crypto