Generate cryptographically secure random strings with customizable length, count, and character sets (uppercase, lowercase, digits, symbols). Everything runs locally in your browser — nothing is uploaded.
Generates cryptographically strong random passwords with fully customizable length, character sets, and pattern rules. Everything runs locally in your browser — nothing is uploaded.
Generates cryptographically secure random integers or decimals within a user-defined min-max range with optional repetition filtering. Everything runs locally in your browser — nothing is uploaded.
Generate one-time passwords with configurable length and character type. Everything runs locally in your browser — nothing is uploaded.
Inspect any string — view character count, byte length, word count, line count, Unicode code points, and non-ASCII character breakdown.
Generate secure API keys with configurable length, character set, and optional prefix. Use with any authentication scheme.
Random String Generator lets you generate cryptographically secure random strings with customizable length, count, and character sets (uppercase, lowercase, digits, symbols). Everything runs locally in your browser — nothing is uploaded.. It works on any device with a modern web browser.
Generate cryptographically secure random strings with customizable length, count, and character sets (uppercase, lowercase, digits, symbols). Everything runs locally in your browser — nothing is uploaded. It runs entirely in your browser — no software installation or data uploads required.
Paste or type your content directly into the provided text area.
Yes. After the initial page load, Random String Generator runs entirely on your device with no internet connection needed. All processing is done locally.
Yes, this tool is completely free with no usage limits, registration, or credit card required.
All processing happens locally in your browser. Your data is never uploaded to any server.
Yes. After the initial page load, the tool runs entirely offline without requiring an internet connection.
No. You can use this tool unlimited times with no quotas or restrictions.
Any modern web browser (Chrome, Firefox, Safari, Edge) on desktop or mobile. No installation needed.
Time Converter
Convert between time units including seconds, minutes, hours, days, weeks, months, and years with precise decimal results. Everything runs locally in your browser — nothing is uploaded.
Random Port Generator
Generate random TCP/UDP port numbers from well-known, registered, or dynamic ranges. Useful for network testing, Docker port mapping, and firewall configuration.
Privacy Cleaner
Scans and clears browser cookies, localStorage, sessionStorage, and cached data for the current site. No signup or account required.
Speed Test
Measures your internet connection’s download speed and latency by downloading a test file from a CDN. Upload speed is not currently measured.
Wheel of Names
Displays an animated spinning wheel that randomly selects one entry from a customizable list of names or options. Everything runs locally in your browser — nothing is uploaded.
QR Code Generator
Renders a scannable QR code from any text or URL using a client-side Reed-Solomon encoder. Download as PNG.