✨100+ Free Online Tools
All Online Tools in One Box
No need to bookmark tools separately. Stack Online Tools is your free all-in-one solution for text, code, SEO, and more.
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Browse by Category
Explore our comprehensive collection of online tools organized by category for easy access.
Text Tools
Transform, analyze, and manipulate text
Case Converter
Convert text between uppercase, lowercase, title case, sentence case, camelCase, snake_case, and more
Word Counter
Count words, characters, sentences, paragraphs, and reading time with readability scores
Text Diff Checker
Compare two texts and highlight differences with side-by-side or inline view
Lorem Ipsum Generator
Generate placeholder text with custom paragraph and word count
Encoding & Decoding
Encode, decode, and hash data securely
Base64 Encoder/Decoder
Encode and decode Base64 strings with support for images and files
URL Encoder/Decoder
Encode and decode URL strings for safe transmission
HTML Entity Encoder
Convert HTML entities for safe display in web pages
JWT Decoder
Decode and validate JSON Web Tokens with signature verification
QR Code Generator
Generate QR codes from text or URLs with custom colors and sizes
Hash Generator
Generate MD5, SHA1, SHA256, SHA512 hashes from text
Code & Developer Tools
Format, minify, and test code
SEO & Marketing Tools
Optimize content for search engines
Frequently Asked Questions
Absolutely! All our tools are completely free to use. We believe in providing valuable utilities without any cost barriers. You can use any tool as many times as you need without restrictions.
We maintain our free service through minimal, non-intrusive advertising and optional premium features. Our core mission is to provide free access to essential online tools for everyone.
No account required! You can use all our tools immediately without signing up. However, creating a free account allows you to save your work, access history, and enjoy additional features.
Yes, we take privacy seriously. All data processing happens in your browser when possible. For server-side processing, we use secure connections and don't store your data longer than necessary.
Absolutely! We love hearing from our users. You can suggest new tools through our Suggest a Tool section. We regularly add new utilities based on user feedback and needs
Our tools work on all modern browsers including Chrome, Firefox, Safari, and Edge. We recommend using the latest version of your preferred browser for the best experience.
Yes, you can use our tools for both personal and commercial purposes. We only ask that you don't resell or redistribute our tools as your own product.
Can't Find Your Tool?
We're constantly adding new tools to help you work smarter. Submit your tool suggestion and we'll build it for the community.
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