Free Online Tools

Combine multiple PDF files into a single document. Drag and drop to reorder pages.

Reduce PDF file size while maintaining quality. Optimize PDFs for faster sharing.

Convert images (JPG, PNG) to PDF format. Combine multiple images into one PDF.

Convert PNG images to JPG format. Reduce file size and improve compatibility.

Convert text between uppercase, lowercase, title case, camelCase, snake_case, and kebab-case.

Format, validate, and beautify JSON data. Instantly detect syntax errors.

Encode and decode text or files to Base64 format. Essential developer utility.

Encode and decode URLs, query strings, and URI components safely in your browser.

Decode JWT headers and payloads locally. Inspect claims without sending tokens to a server.

Generate random UUID v4 values in bulk. Copy clean IDs for databases, tests, and apps.

Generate SHA-1, SHA-256, SHA-384, and SHA-512 hashes for text locally.

Convert YAML configuration files to TOML format. Perfect for config file migration.

Convert JSON files to TOML configuration format. Simple and accurate conversion.

Convert JSON to token-efficient TOON format for LLM prompts. Reduce tokens by 30-60%.

Convert YAML to token-efficient TOON format for LLM prompts. Reduce tokens significantly.

Comprehensive website audit & vibe analysis. 70+ security, SEO, performance, and accessibility checks with AI-powered insights.

Check if your website is ready for Google AdSense approval. 16+ checks across content, technical, UX, policy, and domain criteria.