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All Tools

22 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.

Image Converter
media

Convert images between HEIC, WebP, AVIF, PNG, BMP, GIF, and SVG formats. Preserves EXIF metadata and handles orientation correctly.

UUID Generator
developer

Generate UUID v4, v1, and v7 identifiers. Bulk generation, copy to clipboard, and optional hyphen removal.

Cron Expression Builder
developer

Build cron expressions with a visual editor. See human-readable descriptions and the next 5 scheduled run times.

Password Generator
developer

Generate strong, random passwords with configurable length, character sets, and strength indicator.

Diff Checker
developer

Compare two blocks of text side by side. See added, removed, and unchanged lines with color highlighting.

YAML Formatter
developer

Format, validate, and convert YAML. Beautify YAML, convert between YAML and JSON, and catch syntax errors.

CSV to JSON Converter
developer

Convert CSV data to JSON with custom delimiters and header row detection. Copy the output with one click.

TOTP Generator
developer

Generate time-based one-time passwords from a Base32 secret key. Live countdown timer and Web Crypto API powered.