JSON to YAML (web-toolbox.dev)
Free tool for converting JSON data to YAML format. Useful for config file format conversion and transforming API responses into YAML.
JWT Decoder (web-toolbox.dev)
Free tool for decoding JWT (JSON Web Token) to inspect the header and payload. Decodes only without signature verification, making it easy to check token contents.
Nested Border Radius Calculator (web-toolbox.dev)
Free tool for calculating the optimal inner border-radius to visually align nested elements. Enter the parent's border-radius and padding to get the ideal inner value.
Number Base Converter (web-toolbox.dev)
Free tool for converting numbers between binary, octal, decimal, hexadecimal, and other bases. Streamlines base conversion tasks in programming and data analysis.
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.
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 Tag Generator (web-toolbox.dev)
Free tool for generating OGP (Open Graph Protocol) meta tag HTML from input information. Auto-generates all necessary tags by entering title, description, image, URL, and more.
SQL Formatter (web-toolbox.dev)
Free tool for formatting SQL queries to improve readability. Capitalizes keywords and standardizes indentation. Supports major dialects including MySQL, PostgreSQL, and SQLite.
SVG to CSS (web-toolbox.dev)
Free tool for converting SVG data to Data URI format for use as a CSS background-image. Useful when you want to use SVG icons in CSS without external files.
Text Diff Checker (web-toolbox.dev)
Free tool for comparing two texts and highlighting the differences. Color-codes additions, deletions, and changes for easy review, useful for code reviews and document comparison.
TOML to JSON (web-toolbox.dev)
Free tool for converting TOML data to JSON format. Useful for config file format conversion.
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.
