UUID / GUID Generator (web-toolbox.dev)
Free tool for randomly generating UUID (v4) or GUID values. Generate multiple UUIDs at once, useful for database design and test data creation.
URL Parser (web-toolbox.dev)
Free tool for decomposing a URL into its components: protocol, host, path, query parameters, hash, and more. Useful for checking URL structure and debugging API development.
ULID Generator (web-toolbox.dev)
Free tool for generating ULIDs (Universally Unique Lexicographically Sortable Identifiers). Useful in system development requiring unique identifiers better suited for lexicographic sorting than UUIDs.
RGBA to RGB Converter (www.oh-benri-tools.com)
An online tool that calculates the final RGB value by combining an RGBA (transparent color) and a background RGB color. Useful for previewing how a transparent color will actually appear.
QR Code Generator (lazesoftware.com)
Generates QR codes from any text or URL, including emoji. Supports customization of background color, foreground color, size, margin, and error correction level.
OGP Image Simulator (web-toolbox.dev)
Free tool for previewing how an OGP image will appear when shared on SNS platforms like Twitter, Facebook, and LINE. Useful for checking share card designs.
OGP Checker (web-toolbox.dev)
Free tool for checking OGP (Open Graph Protocol) meta tags of a specified URL. Displays og:title, og:description, og:image, and more, useful for previewing SNS share appearance.
Naming Convention Converter (www.oh-benri-tools.com)
An online tool for converting between programming naming conventions such as camelCase, PascalCase, snake_case, and kebab-case. Input text is instantly converted to all formats.
HSL/HSV Color Picker (www.oh-benri-tools.com)
A color picker for adjusting HSL, HSV, RGB, and alpha values with sliders. Features color saving and history, and supports preset palettes including Material Design and Flat UI.
Heading Extractor (web-toolbox.dev)
Free tool that displays the headings (h1-h6) of a web page in a hierarchical list by entering its URL. Useful for SEO analysis and checking page structure.
CSS Cursor Viewer (web-toolbox.dev)
Free tool for viewing all cursor types available with the CSS cursor property in a single list. Preview the appearance of each cursor in real time.
CSP Parser (web-toolbox.dev)
Free tool for parsing Content Security Policy (CSP) headers and visualizing each directive. Useful for quickly checking and debugging CSP configurations.
