Are these online tools free to use?

Yes — every tool is free, requires no signup, and works entirely in your browser. There are no usage limits.

Do you upload my data to a server?

No. All tools run client-side in your browser. Your input data never leaves your device.

How many tools are available?

There are currently 26 tools spanning HTML, CSS, JavaScript, JSON, XML, YAML, CSV, SQL, Markdown, and AI prompt formats.

Can I use these tools on mobile?

Yes — every tool is fully responsive and works on desktop, tablet, and mobile browsers.

All Tools - Free Online Code Tools

Minifiers

4 tools

HTML Minifier

Minify HTML code online to reduce file size and improve performance.

Fast minification Copy and download Import from URL or file

CSS Minifier

Minify CSS instantly to speed up your website and reduce bandwidth.

Fast minification Copy and download Import from URL or file

JavaScript Minifier

Minify JavaScript using a real JS minifier to shrink file size.

Uses a real minifier Copy and download Import from URL or file

SQL Minifier

Minify SQL queries by stripping comments and whitespace for compact storage and transmission.

Remove comments Collapse whitespace Copy and download

Beautifiers

3 tools

HTML Beautifier

Beautify HTML to make it clean, readable, and consistent.

Prettify HTML Copy and download Import from URL or file

CSS Beautifier

Beautify CSS and format styles for readability and maintenance.

Prettify CSS Copy and download Import from URL or file

JavaScript Beautifier

Format JavaScript code into a readable, consistent structure.

Prettify JS Copy and download Import from URL or file

JSON Tools

5 tools

JSON Formatter

Format JSON into pretty, readable output with indentation.

Pretty print JSON Copy and download Import from URL or file

JSON Validator

Validate JSON and instantly detect syntax errors.

Error detection Highlights issues Import from URL or file

JSON Repair

Repair broken JSON by fixing common formatting mistakes.

Fix common issues Copy and download Import from URL or file

JSON to YAML

Convert JSON to YAML with clean indentation and proper string quoting.

JSON to YAML Custom indent Copy and download

JSON to XML

Convert JSON to well-formed XML with custom root element and optional XML declaration.

JSON to XML Custom root name Copy and download

CSV Tools

2 tools

CSV to JSON

Convert CSV to JSON with delimiter auto-detection, header support, and clean output.

CSV to JSON Copy and download Import from URL or file

JSON to CSV

Convert JSON to CSV with delimiter options, header row, and flatten support for nested objects.

JSON to CSV Copy and download Import from URL or file

XML Tools

3 tools

XML Formatter

Format XML to make it clean, readable, and easy to debug.

Pretty print XML Copy and download Import from URL or file

XML Validator

Validate XML to detect parsing errors and malformed tags.

Error detection Clear feedback Import from URL or file

XML to JSON

Convert XML to JSON with attribute support and clean nested structures.

XML to JSON Attributes preserved Copy and download

HTML Tools

4 tools

HTML to Markdown

Convert HTML to Markdown for docs, notes, and AI prompts.

HTML to MD Copy and download Import from URL or file

Markdown to HTML

Convert Markdown to clean HTML instantly.

MD to HTML Copy and download Live formatting

HTML Table Generator

Create complex HTML tables visually and generate clean table code.

Visual table builder Generates HTML Copy output

HTML Encoder / Decoder

Encode HTML entities (<, >, &, ") or decode them back to plain HTML.

Encode HTML entities Decode back to HTML Copy and download

SQL Tools

1 tools

SQL Formatter

Format SQL online with clean indentation, spacing, and readable structure.

Format SQL Copy output Download result

YAML Tools

3 tools

YAML Formatter

Format and beautify YAML online with clean indentation.

Format YAML Copy output Download result

YAML Validator

Validate YAML and show clear error messages for invalid YAML.

Validate YAML Show errors Copy YAML

YAML to JSON

Convert YAML to JSON instantly. Handles anchors, lists, and nested mappings.

YAML to JSON Custom indent Copy and download

AI Tools

1 tools

AI Prompt Markdown Editor

Format prompts visually and convert them into Markdown for ChatGPT and Gemini.

Rich editor Word import Convert to Markdown

All Tools

Minifiers

HTML Minifier

CSS Minifier

JavaScript Minifier

SQL Minifier

Beautifiers

HTML Beautifier

CSS Beautifier

JavaScript Beautifier

JSON Tools

JSON Formatter

JSON Validator

JSON Repair

JSON to YAML

JSON to XML

CSV Tools

CSV to JSON

JSON to CSV

XML Tools

XML Formatter

XML Validator

XML to JSON

HTML Tools

HTML to Markdown

Markdown to HTML

HTML Table Generator

HTML Encoder / Decoder

SQL Tools

SQL Formatter

YAML Tools

YAML Formatter

YAML Validator

YAML to JSON

AI Tools

AI Prompt Markdown Editor

No tools found

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