FreeQ.One

Online Tools

Browse and search all available tools

46 / 46 tools
🔤

Regex Generator

Generate and validate regular expressions with ease. Create powerful regex patterns for text processing and validation.

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📱

QR Code Generator

Generate customizable QR codes with logos, colors, and error correction. Supports URLs, WiFi, vCards, email, phone, SMS, and plain text.

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📋

JSON Formatter

Format, validate, and beautify JSON data. Minify, sort keys, and fix common JSON formatting issues with ease.

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🔐

Base64 Encoder/Decoder

Encode and decode Base64 text instantly. Supports file upload and drag & drop for convenient conversion.

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🎨

CSS Minifier

Minify and optimize CSS code. Remove whitespace, comments, and reduce file size while preserving functionality.

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🌈

CSS Gradient Generator

Create beautiful CSS gradients with multiple color stops, directions, and formats. Linear, radial, and conic gradients supported.

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📦

Box Shadow Generator

Generate CSS box-shadow code with multiple layers, blur, spread, and color options. Copy-ready code for your designs.

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🔗

URL Encoder/Decoder

Encode and decode URLs, query strings, and form data. Supports file upload and drag & drop for quick conversions.

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🔑

Password Generator

Generate secure passwords with customizable length and character types. Includes strength indicator and history tracking.

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📝

Lorem Ipsum Generator

Generate placeholder text by paragraphs, words, or bytes. Perfect for design mockups and content layouts.

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🎨

Color Picker & Converter

Pick and convert colors between HEX, RGB, and HSL formats. Live preview with CSS copy support.

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📄

Markdown to HTML

Convert Markdown to HTML in real-time with split-pane preview. Includes example templates and sanitized output.

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📐

Unit Converter

Convert between length, weight, temperature, and data size units. Bidirectional conversion with instant results.

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🔍

Text Diff Checker

Compare two texts side-by-side with color-coded change highlighting for added, removed, and unchanged lines.

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📊

CSV to JSON Converter

Convert CSV to JSON and JSON to CSV instantly. Supports comma, tab, pipe, and custom delimiters with header row detection.

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🔠

Case Converter

Convert text between camelCase, snake_case, kebab-case, PascalCase, Title Case, UPPER CASE, and more with live preview.

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🆔

UUID Generator

Generate UUID v4 and v7 instantly. Supports single and bulk generation with copy, auto-copy, and history tracking.

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Epoch & Date Converter

Convert Unix timestamps to human-readable dates and vice versa. Supports multiple formats and timezone presets.

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📊

Word & Character Counter

Count words, characters, sentences, paragraphs, reading time, and analyze keyword density in real-time.

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💯

Percentage Calculator

Calculate percentages for tips, discounts, grades, and everyday math. Find X% of Y, percentage change, and more.

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🔒

Hash Generator

Generate MD5, SHA-1, SHA-256, and SHA-512 hashes instantly. Compare text against a known hash with file upload support.

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&#️⃣

HTML Entity Encoder/Decoder

Encode and decode HTML entities. Supports named, numeric decimal, and hex entities with a clickable reference table.

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🎲

Random Number Generator

Generate random numbers, dice rolls, coin flips, and lottery picks. Supports ranges, decimals, and bulk generation.

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🎂

Age Calculator

Calculate your exact age in years, months, and days. Discover your zodiac sign, Chinese zodiac, and days until your next birthday.

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🔢

Number Base Converter

Convert between binary, octal, decimal, and hexadecimal. Supports fractional and negative numbers with arbitrary precision.

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☀️

Off-Grid Calculator

Solar ROI, wire gauge, and battery runtime calculators for off-grid power systems and van life.

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📐

Flexbox Sandbox

Interactive flexbox layout playground — visualize flex properties and gap

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📊

CSS Grid Builder

Design CSS grid layouts visually and export the CSS code

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🎯

Color Palette Generator

Generate harmonious color palettes with accessibility contrast checking

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📏

Typography Scale Generator

Create consistent typography scales with visual preview and CSS output

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🟧

Border Radius Generator

Visual border-radius editor with live preview and CSS export

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Animation Lab

Create CSS animations and transitions with visual controls

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📊

Diagram Editor

Create flowcharts, sequence diagrams, and more using Mermaid syntax with live preview and unlimited exports.

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🖼️

Image Compressor

Compress JPEG, PNG, and WebP images with adjustable quality. Reduce file size up to 80% while preserving visual quality — all in your browser.

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📄

PDF Merger

Merge multiple PDF files into one document. Reorder files via drag-and-drop before merging. All processing in your browser — no uploads.

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⚖️

BMI Calculator

Calculate your Body Mass Index (BMI) using metric or imperial units. Check your weight category against WHO standards — all in your browser.

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🔀

List Randomizer & Team Picker

Randomize lists and pick teams instantly. Fisher-Yates shuffle, fair round-robin team assignment, and history tracking — all in your browser.

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🖼️

Favicon Generator

Convert images or text into favicon files (PNG, ICO, SVG) for your website. Runs entirely in the browser — no uploads.

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Cron Expression Builder

Generate and visualize cron expressions with an easy click-to-build interface. Get plain-English descriptions and next run times instantly.

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✂️

Image Resizer

Resize images instantly in your browser. Upload an image, set custom dimensions, and download the resized result — no uploads required.

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🧮

Scientific Calculator

A powerful and free online scientific calculator for complex mathematical calculations, trigonometry, logarithms, and more.

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✂️

Pdf Splitter

Split a PDF by selecting pages — extract each as a separate file or merge your selection into one PDF. All in your browser.

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📄

YAML Formatter & Validator

Format, validate, and convert YAML to/from JSON instantly. All processing runs in your browser.

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📖

Readability Score Calculator

Calculate the readability score of your text to improve clarity and engagement.

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🖼️

Image Format Converter

Convert images between PNG, JPEG, WebP, and AVIF with adjustable quality/compression for lossy formats.

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🌐

IP Address Lookup

Find detailed information about any IP address including location, ISP, and more.

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