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Free Online Developer Tools

JSON formatters, hash generators, encoders, converters, and more — all tools for developers. Everything runs client-side.

20 free tools · No sign-up required

Snake to Camel Case

Instantly format variable names from snake_case to camelCase.

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Compare Code

Identify syntax changes and bug fixes by comparing two code snippets side-by-side.

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SQL Formatter

Make your SQL queries readable with proper indentation and capitalization.

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CSS Beautifier

Expand and format your minified CSS code to make it human-readable.

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CSS Minifier

Compress your CSS code for production deployment to improve load times.

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HTML Beautifier

Make messy HTML readable by automatically indenting nested tags.

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JavaScript Beautifier

Restore readability to messy or minified JS code.

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JSON Formatter

Instantly parse and indent raw JSON data.

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String to Binary

Translate readable text into machine-level binary code.

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Binary to String

Translate binary code (0s and 1s) back into readable text.

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Hex to String

Decode hexadecimal strings into readable text.

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ASCII to Text

Translate ASCII numeric codes into standard text characters.

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SHA256 Hash

Instantly compute the secure, irreversible SHA256 cryptographic hash of any text.

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MD5 Hash

Generate an MD5 checksum for your text strings.

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URL Extractor

Pull every hyperlink and URL out of a block of messy text or HTML.

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Domain Extractor

Strip away paths, queries, and protocols to get clean domain names from a list of URLs.

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Word to HTML

Paste your rich text and get clean, semantic HTML code.

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Random Alphanumeric

Create secure, random combinations of letters and numbers.

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HTML to Markdown

Quickly convert HTML snippets, web page code, or rich text into clean, portable Markdown syntax in your browser.

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Markdown to HTML

Convert Markdown syntax into production-ready semantic HTML with instant live conversion in your browser.

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Free Developer Tools Online — JSON Formatter, Hash Generator, Converters | DoctorDocs