Developer Tools

Free online tools to help developers with everyday tasks. Convert, format, and transform your data with ease.

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Featured Tools

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JSON Formatter & Validator

Popular

Format, validate and beautify JSON data

json

formatter

validator

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JSON to XML Converter

Popular

Convert JSON data to XML format with proper formatting and structure

json

xml

converter

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XML to JSON Converter

Popular

Transform XML documents into JSON objects

xml

json

converter

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Base64 Encoder/Decoder

Encode or decode Base64 data

base64

encoder

decoder

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CSS Minifier

Minify CSS code to reduce file size

css

minifier

optimizer

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HTML Encoder/Decoder

Encode or decode HTML entities

html

encoder

decoder

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JavaScript Beautifier

Format and beautify JavaScript code

javascript

formatter

beautifier

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Markdown to HTML

Convert Markdown text to HTML

markdown

html

converter

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URL Encoder/Decoder

Encode or decode URL components

url

encoder

decoder

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YAML to JSON

Convert YAML to JSON format

yaml

json

converter

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Frequently Asked Questions

Are these tools free to use?

Yes, all tools on DevToolLab are completely free to use. We believe in making developer tools accessible to everyone.

Is my data secure?

All processing happens in your browser. We don't store or transmit your data to our servers, ensuring complete privacy and security.

Do I need to create an account?

No account is required to use our tools. However, creating an account allows you to save your preferences and history.

Can I use these tools offline?

Most of our tools work offline once loaded. You can also install our PWA for offline access to essential tools.

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