N1 Tools
Your Offline Developer Utility Toolbox
A collection of essential developer tools that work completely offline. No server calls, no data uploads - everything runs in your browser.
Encode/Decode
Base64, URL, and HTML encoding/decoding utilities
Formatters
Beautify and format JSON, SQL, and other code
Calculators
Date difference, date arithmetic, and more
Converters
Convert Excel data to tuples, CSV to JSON, and more
Why N1 Tools?
Works without internet. All processing happens in your browser.
Your data never leaves your computer. No server uploads.
Minimal design with maximum performance.
Just open in your browser and start using.
Excel to Tuple Converter
Paste Excel values and convert them to Python tuples for SQL queries
Date Difference Calculator
Calculate the difference between two dates
Select both dates and click calculate
Base64 Encoder/Decoder
Encode or decode Base64 strings
JSON Formatter
Format and validate JSON data
URL Encoder/Decoder
Coming soon...
HTML Encoder/Decoder
Coming soon...
SQL Formatter
Format and beautify SQL queries
Date Calculator
Coming soon...
CSV to JSON Converter
Coming soon...