Tools

Browse all tools registerd in this site.

Formatting

JSON Formatter (web-toolbox.dev)

Free tool for formatting, minifying, and validating JSON text. Supports custom indentation and syntax error detection, useful for checking API responses and config files.

Encode & decode

JSON to CSV (web-toolbox.dev)

Free tool for converting JSON data to CSV format. Just paste array-based JSON to convert it, ideal for migrating data to spreadsheet applications.

Encode & decode

JSON to TOML (web-toolbox.dev)

Free tool for converting JSON data to TOML format. Useful for config file format conversion.

Encode & decode

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.

Encode & decode

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.

Text processing

Line Break Remover (web-toolbox.dev)

Free tool for removing line breaks, spaces, and tab characters from text. Useful for cleaning up text with unwanted whitespace or line breaks.

Code generation

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.

Encode & decode

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.

Developer tools

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.

Developer tools

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.

Code generation

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.

Utilities

Password Generator (web-toolbox.dev)

Free tool for generating random passwords with custom character sets and lengths. Configure uppercase, lowercase, numbers, and symbols, and generate multiple passwords at once.

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