Developer Tools

Free, fast, and privacy-focused tools for developers. All processing happens in your browser.

Text Processing

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JSON Formatter

Format, validate, and beautify JSON data

Markdown Converter

Convert Markdown to HTML and preview

Lorem Ipsum Generator

Generate placeholder text

Encoding

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Base64 Encoder/Decoder

Encode and decode Base64 strings

URL Encoder/Decoder

Encode and decode URLs

Development

RegEx Tester

Test and debug regular expressions

Diff Checker

Compare and find differences between texts

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Cron Expression Builder

Build and validate cron expressions

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JSON Schema Converter

Generate JSON Schema from JSON

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XML & WSDL Viewer

Format, validate, and parse XML and WSDL files

UUID Generator

Generate and validate UUIDs (v1, v4, v7)

Security

Hash Generator

Generate MD5, SHA-1, SHA-256, SHA-512 hashes

Design

🎨

Color Converter

Convert between HEX, RGB, HSL color formats

Why Use Our Tools?

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Privacy First

All processing happens in your browser. Your data never touches our servers.

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Lightning Fast

No server round-trips means instant results, even with large files.

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100% Free

No subscriptions, no limits, no ads. Free forever.

Frequently Asked Questions

Are the developer tools free?

Yes, all of them are free, with no account and no usage limits.

Do the tools work offline?

Many do: processing is client-side, so once the page has loaded the tool keeps working without a connection.

Is my data sent to a server?

No, everything is processed in your browser and never leaves your device.