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.

Use Karvics cryptography tools to encode, encrypt, and verify data in your browser. Encrypt text and files with AES-256-GCM via the native Web Crypto API, and compute MD5 or SHA256 hashes — all 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 on tabular JSON data. Convert, validate & estimate token costs for LLM APIs. LLM API cost estimation. Data structure tokenization.

Dev Tools

Essential utilities for software developers and engineers. Diagram-as-Code, formatters, and code helpers designed to streamline your daily workflow in-browser.