Build & format your robot.txt file.
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Increase your understanding of concepts using this technique.
Origins of common superstitions.
Creates a batch of icons from an image
Detect & generate DTMF tones.
Get info about your display & more
Convert text into sound
Keep track of your projects.
Timezone converter / meeting scheduler
Focus better, accomplish more, and build habits that stick.
Info about your device and browser
Create colors and color schemes
Play Blackjack (21) against the house.
Encode and decode Base64 strings and files. Your data never leaves your device.
Convert between SI, metric, and imperial units.
Analyze any website for 50+ SEO factors across 11 categories.
A beautiful, full featured DB schema visualizer.
Animated Spinner Selector (like Wheel of Fortune)
Formatting for international numberrs
XML, JSON, TOML, YAML, CSV, TSV, INI,
Two-Factor Authentication - Your secrets never leave your device
Convert color codes to hex
Generate detailed amortization schedules for any loan or lease.
Decode User Agent Data
Generate safe and secure passwords
Calculate CVSS v3.1 and v4.0 vulnerability severity scores
Easily redact portions of a PDF document
Visualize Audio Frequencies
Test apps on different display sizes
Imperial & Metric - length, weight, temperature, volume, speed, pressure, energy, and power.