Free Online Tools

A collection of 12 fast, free utilities for developers, writers, and anyone who works with text and data. Everything runs entirely in your browser — no accounts, no uploads, no tracking of your input.

JSON Formatter

Format, validate, and minify JSON with clear error messages.

Base64 Encoder

Encode and decode Base64 with full UTF-8 support.

URL Encoder

Percent-encode and decode URLs and query strings.

UUID Generator

Generate single or bulk random UUID v4 values.

Password Generator

Create strong random passwords with custom length and character sets.

Word Counter

Count words, characters, and sentences; estimate reading time.

Timestamp Converter

Convert Unix timestamps to dates and back, with live clock.

Color Converter

Convert between HEX, RGB, and HSL with a live color preview.

Case Converter

Convert text between upper, lower, title, camel, and snake case.

Lorem Ipsum Generator

Generate placeholder paragraphs and sentences for mockups.

SHA-256 Hash Generator

Compute SHA-256 hashes of any text instantly.

Markdown Preview

Write Markdown and preview the rendered HTML live.

Frequently asked questions

Are these tools really free?: Yes. Every tool on this site is free to use with no limits, no accounts, and no sign-up.
Do you store or upload my data?: No. All processing happens locally in your browser using JavaScript. Nothing you type or paste is sent to any server.
Do the tools work offline?: Yes. The site has no external dependencies — once a page is loaded, the tools keep working without an internet connection.
Which browsers are supported?: Any modern browser: Chrome, Edge, Firefox, and Safari, on desktop and mobile. The layout is responsive and respects your system's dark mode.
Can I use these tools on my phone?: Yes. Every page is mobile-friendly, with large tap targets and layouts that adapt to small screens.