Digital & Developer Tools

Use browser-native utilities for technical data, codes, storage units, and file transfer planning.

Tools in this collection

Barcode Generator — Create and download customizable CODE128, EAN, UPC, CODE39, and ITF-14 barcodes.
Base64 Encoder & Decoder — Encode and decode UTF-8 text with standard or URL-safe Base64.
Data Storage Converter — Convert bits, bytes, decimal kB through TB, and binary KiB through TiB with explicit definitions for comparing file sizes and storage capacity.
Download Time Calculator — Estimate download or upload time from file size and connection speed, distinguishing megabits from megabytes and allowing usable-speed adjustment.
JSON Formatter & Validator — Validate, pretty-print, minify, and recursively sort JSON locally.
QR Code Generator — Create customizable QR codes for websites, text, contact details, messaging, and Wi-Fi networks.
Unix Timestamp Converter — Convert Unix seconds or milliseconds and local or UTC date/time values.
URL Encoder & Decoder — Encode, decode, parse URLs, and build or parse query strings locally.
UUID Generator & Validator — Generate secure UUID v4 batches and validate canonical UUID values.

These tools use browser-native APIs and do not execute, fetch, or upload entered content.

Review sensitive data before saving, copying, or sharing it.

Everyday Utilities — Practical date, cooking measure, electricity, code, and percentage tools for everyday tasks.
QR & Barcode — Generate scannable QR codes and standard product barcodes.