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All Tools

14 free tools — formatters, converters, calculators, and generators running entirely in your browser.

JSON Formatter & Validator
developer

Format, beautify, minify, and validate JSON data online. Instant error detection with line numbers.

Base64 Encoder / Decoder
developer

Encode and decode Base64 strings online. Supports text and URL-safe Base64 encoding.

Color Converter
css

Convert colors between HEX, RGB, and HSL formats. Live preview with instant copy-to-clipboard.

Word & Character Counter
content

Count words, characters, sentences, and paragraphs. Estimate reading time for any text.

Compound Interest Calculator
financial

Calculate compound interest with monthly contributions. See year-by-year growth breakdowns.

CSS Box Shadow Generator
css

Generate CSS box-shadow values with a visual editor. Multiple layers, presets, and live preview.

URL Encoder / Decoder
developer

Encode and decode URL strings online. Supports full URL and component encoding.

JWT Decoder
developer

Decode JSON Web Tokens and inspect header, payload, and expiration. No server-side processing.

Hash Generator
developer

Generate SHA-1, SHA-256, SHA-384, and SHA-512 hashes from text. Uses the Web Crypto API.

Lorem Ipsum Generator
content

Generate placeholder text by paragraphs, sentences, or words. Copy with one click.

Markdown Preview
content

Write Markdown and see a live HTML preview. Supports headers, lists, code blocks, links, and images.

Regex Tester
developer

Test regular expressions with live highlighting, match details, and capture group extraction.

Mortgage Calculator
financial

Calculate monthly mortgage payments, total interest, and amortization schedule.

CSS Gradient Generator
css

Create linear, radial, and conic CSS gradients with a visual editor. Presets and multi-stop support.