Miscellaneous
Stopwatches, decision wheels, countdown timers, and specialized offline micro-tools.
Secure Password Generator
Generate ultra-secure random passwords and passphrases with custom length, symbol inclusion, character exclusions, and entropy bits scoring.
Screen Recorder Component
Record your screen, window, or webcam with audio directly in your browser. Download high-quality WebM/MP4 recordings with 100% data privacy.
Voice Dictation Recorder
Transcribe live speech to text in real-time with continuous in-browser recognition, custom punctuation, and one-click TXT/DOCX export.
Browser Internet Speed Test
Test your live internet connection speed: measure real-time download bandwidth, upload throughput, and ping latency in milliseconds.
IP & Geolocation Inspector
Lookup your public IP address, ISP provider, ASN organization, city, country, and timezone with interactive geographic mapping.
High-Accuracy Stopwatch
Track time with millisecond precision, record multi-lap split times, and export timestamped lap logs to CSV.
Color Standards Converter
Convert colors between HEX, RGB, HSL, HSV, CMYK, and LAB color spaces with WCAG contrast ratio scoring and color harmonies.
World Time Zone Converter
Compare world times across multiple global cities simultaneously, convert timezones, and schedule international meetings effortlessly.
Decision Wheel Spinner
Spin a customizable interactive decision wheel with sound effects, slice weights, and customizable option lists to make fast, fair choices.
Morse Code Synthesizer
Encode text to Morse code and decode Morse code to text with real-time Web Audio API sound playback, light flashing, and WPM speed tuning.
Text to ASCII Art Grid
Convert plain text into retro ASCII art banners, figlet typography styles, and monospace font grids with 1-click clipboard copy.
Metronome Rhythm Keeper
Keep steady musical tempo with customizable BPM (20–300), time signatures (2/4, 3/4, 4/4, 6/8), visual pendulum pulses, and audio clicks.
Sound Wave Tone Generator
Synthesize pure audio frequency tones from 20 Hz to 20,000 Hz with Sine, Square, Sawtooth, and Triangle waveforms via Web Audio API.
Stopwatch Time Split Recorder
Record high-precision stopwatch time splits, track lap deltas, calculate fastest and slowest laps, and export data logs to CSV.
Why Use CrazyTools4U Miscellaneous?
Traditional online converters and utilities require you to upload your files to remote servers. This introduces bandwidth lag, security liabilities, and privacy exposure for sensitive files.
All utilities in the Miscellaneous suite on CrazyTools4U run entirely on the client side using WebAssembly (WASM), HTML5 Canvas pipelines, and Web Workers. Your raw files never leave your device memory, ensuring complete zero-server privacy and lightning-fast execution.