Everything you need to know about using Leshey micro-tools
Leshey micro-tools are designed to be instantly usable. No installation, no sign-up, no configuration. Just visit the tools page and click on any tool to start using it.
All tools run 100% in your browser. Your data never leaves your device.
Every tool runs entirely in your browser using JavaScript. No server processing.
We don't use analytics, cookies, or any form of user tracking. Your privacy is absolute.
Simple, readable code. No hidden functionality or data collection.
JSON Formatter, UUID Generator, Timestamp Converter, Markdown Preview, Text Diff Checker
Base64 Encoder/Decoder, Hash Generator, URL Encoder/Decoder, CSV to JSON Converter
Color Palette Generator, QR Code Generator, Lorem Ipsum Generator
Paste minified JSON, click "Format & Validate" to beautify and check for errors.
// Input (minified)
{"name":"John","age":30,"city":"NYC"}
// Output (formatted)
{
"name": "John",
"age": 30,
"city": "NYC"
}
Encode text or decode Base64 strings for API authentication, data URLs, etc.
// Input Hello, World! // Encoded Output SGVsbG8sIFdvcmxkIQ==
Generate v4 UUIDs for database records, API keys, unique identifiers.
// Example Output 550e8400-e29b-41d4-a716-446655440000 6ba7b810-9dad-11d1-80b4-00c04fd430c8
Our tools work in all modern browsers:
We use modern web standards (ES6+, Web Crypto API, Canvas API) but avoid experimental features. If you encounter issues, please contact us.
Yes, 100% free forever. No premium tiers, no paywalls, no limits.
No. Zero data collection, no analytics, no cookies. All processing happens in your browser.
Absolutely! Use them for any purpose, personal or commercial.
Email us at domains@leshey.io with details about the issue.
Yes! Contact us at domains@leshey.io with your tool idea.