Browse All Free Online Tools
No signup or registration required. Select a category or search to find the perfect tool for your task. All tools are free and work offline in your browser.
PDF Tools
Merge, split, and manage your PDF files with ease. High Quality, no file limit. Free PDF tools, no signup required. Convert, edit & organize PDFs in your browser.
Image Tools
Convert, resize, and process your images in seconds. Free image tools, no signup required. Edit, crop & optimize images in your browser.
Cryptography Tools
Use Karvics cryptography tools to encode, encrypt, and verify data in your browser. Generate Base64 strings, Bank-grade AES-GCM via Web Crypto API, and compute MD5 or SHA256 hashes without uploading files to any server.
Password Tools
Generate strong passwords and analyze entropy. Password utilities like random generator, entropy estimator & simple transformers.
URL Tools
Parse, encode, and manage URLs for the web. Free URL tools, no signup required. QR codes, link preview & UTM parameter builder.
Notepad Tools
Rich text notepad with auto-save and download. Free online notepad, no signup required. Format text, create lists & save locally.
SEO Tools
Optimize your website for search engines. Free SEO tools, no signup required, except for the Premium Tools. Meta tags, sitemaps, robots.txt & structured data.
TOON Tools
Token-Oriented Object Notation tools for cutting OpenAI/Claude API Costs. Convert, validate & estimate token costs for LLM APIs. LLM API cost estimation. Data structure tokenization.