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18 articles

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Run HTML code online: instant preview

Test and preview your HTML code directly in your browser with a live preview.

January 5, 2026
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Visualize HTML code online without installation

How to visualize HTML code directly in your browser? Complete guide with examples and use cases.

January 6, 2026
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Test a regex online: tool and practical guide

Test your regular expressions online with match highlighting, capturing groups and pattern explanation.

January 7, 2026

How to use a regex tester: complete guide for beginners

Step-by-step guide to using an online regex tester: entering the pattern, choosing flags, reading groups and debugging expressions.

January 8, 2026
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Format JSON online: indentation and validation

Format and beautify your JSON in one click: automatic indentation, syntax highlighting and real-time validation.

January 9, 2026

Fix invalid JSON: common errors and solutions

Identify and fix the most common JSON errors: missing commas, single quotes, unquoted keys and comments.

January 10, 2026

Convert JSON to XML online: guide and examples

How to convert JSON to XML? Mapping rules, free online tool and step-by-step transformation examples.

January 11, 2026

Convert JSON to YAML online: tool and examples

Convert your JSON to YAML for your Kubernetes, Docker Compose or GitHub Actions configuration files.

January 12, 2026
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Convert CSV to JSON online: guide and examples

Transform your CSV files to JSON in seconds. Free online tool with header and delimiter handling.

January 13, 2026

Convert CSV to XML online: free tool and examples

Easily transform a CSV file into structured XML for your SOAP integrations, XSLT or legacy systems.

January 14, 2026

Convert XML to JSON online: tool and guide

Transform your XML data into structured JSON for your modern web applications and APIs. Free online tool.

January 15, 2026

Convert YAML to JSON online: tool and examples

Convert your YAML files (Kubernetes, Docker, GitHub Actions) to JSON for debugging, validating or integrating your configurations.

January 16, 2026
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Encode to Base64 online: complete guide and examples

How to encode text or data in Base64? Free online tool, HTTP, JWT, image and API use cases.

January 17, 2026

Decode Base64 online: tool and practical examples

Instantly decode a Base64 string to text or binary. Free online tool for JWT, tokens and encoded data.

January 18, 2026
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Generate a SHA-256 hash online: guide and use cases

How to generate a SHA-256 hash? Free online tool, algorithm explanation and use cases in security and data integrity.

January 19, 2026

Generate an MD5 hash online: uses and limitations

Generate an MD5 hash online. Discover legitimate use cases and why MD5 should no longer be used for security.

January 20, 2026
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Convert binary to decimal: formula, table and examples

Learn to convert a binary number to decimal with our step-by-step method, reference table and online tool.

January 21, 2026

Convert a decimal number to binary: method and table

Easily convert decimal numbers to binary using the successive division method, a complete table and practical examples.

January 22, 2026
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