Free & Open Tools
Tiny tools.
Big results.
A curated directory of fast, focused micro-tools for developers and marketers. No sign-up. No tracking. Everything runs in your browser.
AI Marketing Prompt Generator
Generate detailed, model-specific marketing prompts for ChatGPT, Claude, Gemini & more.
Viral Hook Generator
Generate 10 scroll-stopping headline hooks from proven copywriting formulas.
UTM Link Builder Pro
Build campaign-tagged URLs with auto-encoding and local history.
Meta Tag Generator
Generate perfect Open Graph and Twitter Card meta tags.
Aspect Ratio Calculator
Calculate and convert aspect ratios for any screen or canvas.
Social Text Formatter
Format text with bold, italic, and Unicode styles for social posts.
AI System Prompt Builder
Build structured system prompts with role, rules, and output format in one click.
Cron Job Generator
Build cron expressions visually and get a human-readable schedule translation.
JSON Formatter
Beautify, minify, and validate JSON with instant feedback.
Base64 Encoder
Encode and decode Base64 strings and files in the browser.
Markdown to HTML
Convert Markdown to clean, semantic HTML in real time.
CSS Gradient Generator
Design beautiful CSS gradients with a live visual editor.
Maze Generator
Generate random mazes with adjustable size and complexity. Export as SVG or PNG.
Age Calculator
Calculate exact age in years, months, days, hours, and minutes from any date.
Cryptographic Hash Generator
Generate MD5, SHA-1, and SHA-256 hashes from any text input instantly.
Morse Code Translator
Translate text to Morse code and Morse code back to text with audio playback.
UUID/GUID Generator
Generate RFC 4122-compliant UUIDs (v4) in bulk with one click.
Text Length & Character Counter
Count characters, words, sentences, and paragraphs in real time.
Case Converter
Convert text to UPPERCASE, lowercase, Title Case, camelCase, and more.
Virtual Arabic Keyboard
Type Arabic text online with a full virtual keyboard and tashkeel diacritics.
Word & Reading Time Counter
Count words and estimate reading time for any text or article.
URL Encoder/Decoder
Encode or decode URLs and query strings for safe transmission.
JSON Repair
Auto-fix broken JSON from LLMs — trailing commas, missing quotes, and more.
Error Analyzer
Paste any error message and get a detailed, human-readable explanation.
Pretty Print JSON
Format raw JSON into beautifully indented, readable output.
Minify JSON
Remove all whitespace from JSON to reduce payload size.
Sort JSON Keys
Sort all keys in a JSON object alphabetically for consistency.
Escape / Unescape JSON
Escape JSON strings for embedding or unescape escaped JSON.
Stringify JSON
Convert a JSON object to a JSON-encoded string with escaping.
JSON Tree Viewer
Visualize JSON as an interactive, collapsible tree structure.
JSON Table Viewer
Display JSON arrays as sortable, searchable HTML tables.
JSON Diff
Compare two JSON objects side-by-side and highlight differences.
JSON Path
Query JSON data using JSONPath expressions and preview results.
JSON Search
Search for keys or values within a JSON document instantly.
JSON Size Analyzer
Analyze JSON size, depth, key count, and structure at a glance.
Flatten JSON
Convert nested JSON to flat dot-notation key-value pairs.
JSON to CSV / CSV to JSON
Convert between JSON arrays and CSV format bidirectionally.
JSON to Excel / Excel to JSON
Convert JSON to downloadable XLSX files and Excel to JSON.
JSON to YAML / YAML to JSON
Convert between JSON and YAML formats with syntax validation.
JSON to XML / XML to JSON
Convert between JSON and XML with proper element nesting.
JSON to SQL / SQL to JSON
Generate SQL INSERT statements from JSON or parse SQL to JSON.
JSON to Markdown Table
Convert JSON arrays into formatted Markdown tables instantly.
JSON to TypeScript
Generate TypeScript interfaces from any JSON object.
JSON to Python Dataclasses
Generate Python dataclass definitions from JSON data.
JSON to Java POJO
Generate Java POJO classes with getters/setters from JSON.
JSON to C# Classes
Generate C# class definitions with properties from JSON.
JSON to Go Structs
Generate Go struct definitions with JSON tags from data.
JSON to Kotlin Data Classes
Generate Kotlin data classes from JSON objects.
JSON to Swift Codable
Generate Swift Codable structs from JSON data.
JSON to Rust Structs
Generate Rust structs with serde derive macros from JSON.
JSON to PHP Classes
Generate PHP class definitions with typed properties from JSON.
JSON Schema Validator & Generator
Validate JSON against a schema or generate a schema from data.
Regex Tester
Test regular expressions in real time with match highlighting and group capture.
JWT Decoder
Decode and inspect JSON Web Tokens — header, payload, and signature.
HEX/RGB/HSL Color Converter
Convert colors between HEX, RGB, and HSL formats with a live preview.
WiFi QR Code Generator
Generate a scannable QR code to share your WiFi network instantly.
Fancy Fonts Generator
Transform text into 12+ stylish Unicode fonts for social media bios and posts.
Random Name Picker
Paste a list and spin to randomly pick a winner with a visual animation.
Percentage Calculator
Calculate percentages three ways: X% of Y, X is what % of Y, and % change.
Discount & Tax Calculator
Calculate final price after discount and tax. See exactly how much you save.
Days Between Dates
Calculate total days, weeks, and working days between any two dates.
Split Bill & Tip Calculator
Calculate tip amount and split the bill evenly among friends.
Zodiac Sign Calculator
Find your zodiac sign, element, ruling planet, and personality traits.
Moon Phase Calculator
See the lunar phase for any date with a visual moon display.
Skincare Routine Guide
Select your products and get the correct order of application.
Pomodoro Timer
A 25/5 minute work-break timer with progress ring and notifications.
Random Number Generator
Generate random numbers with custom range, quantity, and no-duplicate mode.
GPA Calculator
Add courses with grades and credits to calculate your GPA on a 4.0 scale.
Pet Age Calculator
Convert your dog or cat's age to human years using modern formulas.
Love Calculator
Enter two names and calculate your love compatibility — just for fun!
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