Free Online Tools
Simple, fast, privacy-first tools that run entirely in your browser. No signup required. No data collected.
Password Generator
Generate strong, random passwords instantly. Customize length, character types, and generate in bulk. Cryptographically secure.
Use tool →Invoice Generator
Create professional invoices in seconds. Fill in details, preview, and download as PDF. Perfect for freelancers and small businesses.
Use tool →Privacy Policy Generator
Generate a GDPR-compliant privacy policy for your website or app. Answer a few questions and get a ready-to-use policy.
Use tool →JSON Formatter
Format, validate, and beautify JSON data. Minify or pretty-print with syntax highlighting. Convert between JSON and CSV.
Use tool →QR Code Generator
Generate QR codes for URLs, text, email, phone, WiFi, and SMS. Download as PNG instantly.
Use tool →Markdown Preview
Live Markdown editor with side-by-side preview. GitHub Flavored Markdown with tables, code blocks, and more.
Use tool →Color Palette Generator
Create harmonious color schemes from any base color. Analogous, complementary, triadic, and more. Export as CSS.
Use tool →Base64 Encoder/Decoder
Encode text to Base64 or decode Base64 back to text. Supports UTF-8 and file encoding. Fast and private.
Use tool →Word Counter
Count words, characters, sentences, and paragraphs. Estimate reading time. Great for writers and content creators.
Use tool →CSV to JSON Converter
Convert CSV data to JSON format instantly. Auto-detects delimiters. Copy or download the result.
Use tool →Lorem Ipsum Generator
Generate placeholder text for your designs and mockups. Choose paragraphs, sentences, or words. One-click copy.
Use tool →Hash Generator
Generate MD5, SHA-1, SHA-256, and SHA-512 hashes from text. Compare and verify hashes. Uses Web Crypto API.
Use tool →UUID Generator
Generate UUID v4 (random) and v7 (time-ordered). Bulk generate up to 100. Uppercase, braces, and no-hyphens options.
Use tool →Regex Tester
Test regular expressions in real-time with match highlighting, capture groups, and all flags. Quick reference included.
Use tool →Timestamp Converter
Convert Unix timestamps to dates and back. Live epoch clock, millisecond support, relative time, multiple formats.
Use tool →URL Encoder/Decoder
Encode and decode URLs, query strings, and URI components. Supports encodeURIComponent, encodeURI, and Base64 URL.
Use tool →Diff Checker
Compare two texts and see differences highlighted. Line-by-line diff with character-level changes, like git diff in your browser.
Use tool →JSON ↔ YAML
Convert between JSON and YAML formats instantly. Configurable indentation, validation, and formatting. Bidirectional conversion.
Use tool →HTML Entity Encoder
Encode special characters to HTML entities or decode them back. Named, decimal, and hex modes. Essential for safe HTML content.
Use tool →Number Base Converter
Convert between binary, octal, decimal, hex, and custom bases (2-36). BigInt support for large numbers. Bit/byte info.
Use tool →Text Case Converter
Convert between camelCase, PascalCase, snake_case, kebab-case, UPPER_SNAKE, Title Case, and more. Auto-detects word boundaries.
Use tool →PDF Merge & Split
Merge multiple PDFs into one or split pages out. Drag-and-drop, reorder, extract specific page ranges. 100% client-side.
Use tool →Premium Developer Resources
Templates and toolkits to accelerate your development workflow.
CF Workers SaaS Starter Kit
Production-ready SaaS backend on Cloudflare Workers. Hono + D1 + JWT auth + Stripe billing + multi-tenancy. $0/month hosting.
$19 on Gumroad →CLAUDE.md Mega Collection
12 production-ready CLAUDE.md templates for every dev role. Full-stack, DevOps, Data Science, and more.
$12 on Gumroad →AI Solopreneur Toolkit
Notion template with 6 databases — task board, content calendar, revenue dashboard, launch tracker, and more.
$9 on Gumroad →Why FreeTools?
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Core tools are free with no limits. No ads, no upselling tricks.