Utility Toolkit

Handy everyday helpers for musicians, developers, and operators—free browser tools with private, watermark-free outputs.

Use it for: Pick the right Utility Toolkit tool before opening the full browser workflow. Output: A local, searchable index of browser-first tools with live status and privacy cues.

Metronome

Keep time with a precise browser-based metronome featuring tap tempo and subdivision accents.

Visit Metronome

Tap Tempo BPM Finder

Tap along to discover the beats per minute of any rhythm or song in seconds.

Visit Tap Tempo BPM Finder

Note ↔ Frequency Converter

Convert between musical notes and frequencies with cent offsets and tuning support.

Visit Note ↔ Frequency Converter

Barcode Generator

Create printable Code128, EAN, UPC, or QR barcodes ready for download.

Visit Barcode Generator

IBAN Validator

Check International Bank Account Numbers instantly with mod 97 validation.

Visit IBAN Validator

Luhn Algorithm Checker

Validate credit cards, IMEIs, and other Luhn-based numbers in real time.

Visit Luhn Algorithm Checker

MIME Type Detector

Drop a file to reveal the most accurate MIME type and recommended file extension.

Visit MIME Type Detector

Unicode Normalizer

Normalize text to NFC, NFD, NFKC, or NFKD to eliminate sneaky unicode differences.

Visit Unicode Normalizer

QR Code Scanner

Scan QR codes straight from your webcam with secure, on-device decoding.

Visit QR Code Scanner

Color Quantizer

Match any color to the closest swatch in your custom palette for consistent branding.

Visit Color Quantizer