Developer Tools
13 free tools in this collection
Base64 Encoder/Decoder
Fast and secure online Base64 encoder and decoder. Convert text to Base64 or decode Base64
Frequency Tester
Test your speaker frequency range by sweeping from 20Hz bass to 20kHz treble.
JSON Formatter
Free online JSON Formatter and Validator. Beautify, minify, and validate your JSON code in
MD5 Generator
Generate MD5 hashes for any text instantly. Our free online MD5 generator is fast, secure,
Metronome
Free online metronome with adjustable BPM for musicians and music students.
Mic Test
Test your microphone online. Check mic levels in real-time and see if your mic is working.
Pan Card Validator
PAN card validator to check PAN number format online free. Verify 10-digit PAN structure i
Password Generator
Generate strong, secure, and random passwords instantly with our free online password gene
Regex Tester
Free online Regex Tester: test your regular expression with live highlighting, all replace
Speaker Cleaner
Eject water and dust from your smartphone or laptop speaker using high-frequency sound wav
Speaker Test
Test your left and right speakers separately to diagnose stereo audio issues.
Tone Generator
Generate pure audio tones at any frequency with multiple waveform types.
White Noise Generator
Generate white, pink, and brown noise for sleep, focus, and tinnitus relief.