# tools.lavx.hu - Free Online Developer & Security Tools

> This website provides 135+ free online tools for developers, security researchers, and productivity. All tools work directly in your browser - no registration or installation required.

## About This Site

tools.lavx.hu is a comprehensive collection of web-based utilities organized into 16 categories:

1. **AI-Powered Tools** - Grammar checker, translator, content summarizer, code optimizer, contract generator, SEO audit, CVE explorer with AI explanations, SQL query generator
2. **Text & Document** - Markdown editor, text formatter, Lorem ipsum generator, diff tool, statistics
3. **Code & Development** - Pastebin with syntax highlighting, JSON/SQL formatters, regex tester, cron generator
4. **JWT Tools** - Parser, verifier, builder, JWKS inspector
5. **Encoding & Conversion** - Base64, URL encoding, number systems, date/time, color formats
6. **Security & Cryptography** - Hash generators (MD5, SHA), password tools, PGP/SSH key generators, OTP, secret notes
7. **Security Research & OSINT** - Steganography analysis, IOC defanger, dork builder, username recon, CVE database
8. **Identity & Generators** - UUID, ULID, BIP39 mnemonic generators
9. **Blockchain & Crypto** - Wallet generator, price tracker, tax calculator, gas estimator, DeFi tools, NFT toolkit
10. **Financial Tools** - Investment calculator, portfolio tracker, loan calculator, forex converter
11. **Math & Calculators** - Mathematical evaluator, percentage calculator, ETA calculator
12. **Networking & DNS** - CIDR calculator, DNS lookup, SSL checker, GeoIP, What's My IP
13. **Web Development** - User-Agent parser, HTTP status codes, URL shortener, Open Graph generator
14. **Graphics & Media** - Image converter/cropper, favicon generator, color palette, PDF tools
15. **Data & Parsing** - CSV viewer, mock data generator, phone parser, IBAN validator, EML analyzer
16. **Productivity** - To-do list, Kanban board, focus timer, QR reader, polls

## Key Features

- **Privacy-First**: Most tools process data entirely in your browser
- **No Account Required**: Use any tool instantly without signing up
- **Free Forever**: All tools are free with no hidden fees
- **Mobile-Friendly**: Works on desktop, tablet, and mobile devices

## Popular Tools

- **AI Grammar Checker** - Fix grammar with AI explanations: https://tools.lavx.hu/tools/ai-grammar-checker
- **AI Translator** - Translate text between 50+ languages: https://tools.lavx.hu/tools/ai-translator
- **Password Generator** - Create strong secure passwords: https://tools.lavx.hu/tools/password-generator
- **JSON Formatter** - Validate and beautify JSON: https://tools.lavx.hu/tools/json-formatter
- **QR Code Generator** - Create customized QR codes: https://tools.lavx.hu/tools/qr-code-generator
- **URL Shortener** - Shorten URLs with analytics: https://tools.lavx.hu/tools/url-shortener
- **CVE Explorer** - Search vulnerability database with AI: https://tools.lavx.hu/tools/cve-explorer
- **DNS Toolbox** - DNS lookup and SPF/DMARC parser: https://tools.lavx.hu/tools/dns-toolbox
- **Pastebin** - Share code with syntax highlighting: https://tools.lavx.hu/tools/pastebin
- **Secret Note Sharer** - Send encrypted self-destructing notes: https://tools.lavx.hu/tools/secret-note-sharer

## Quick Links

- Homepage: https://tools.lavx.hu
- All Tools: https://tools.lavx.hu/#tools
- Sitemap: https://tools.lavx.hu/sitemap.xml

## Contact

For questions or feedback, visit the website.

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Last updated: 2025-12