Fast · Free · Secure

Every Developer Tool
You'll Ever Need

Format, validate, encode, decode, hash, and generate parameters — all free, all online, with absolute privacy.

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All Developer Tools

Choose a tool below to process your data securely in seconds.

All ToolsFormattersEncodersGeneratorsConverters

JSON Formatter & Validator

Format and validate JSON text or files

Base64 Encode/Decode

Encode or decode text and files using Base64

URL Encode/Decode

Encode or decode query strings and URL text

UUID Generator

Generate secure v4 UUIDs

Hash Generator

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

XML Formatter & Validator

Validate, format, and minify XML files

Excel to JSON Converter

Convert Excel spreadsheets to JSON instantly

Unix Timestamp Converter

Convert timestamps to dates and vice versa

YAML Formatter

Format and validate YAML

YAML to JSON Converter

Convert YAML text or files to JSON

JSON to YAML Converter

Convert JSON text or files to YAML

Regex Tester

Test regex patterns with live match highlighting

Why Choose DevTools?

Lightning Fast

Privacy First

Processes are executed entirely in memory and never saved to persistent storage.

Secure

Employs strict security headers, rate limiting, and secure HTTPS transfers.

Free Forever

Access all developer tools without creating an account or paying a subscription fee.

Frequently Asked Questions

Q.Are my inputs and files secure?

Yes. All data processing is done securely in memory and never persisted on disk. We secure all connections with HTTPS.

Q.Is DevTools free to use?

Yes, all developer utility tools are completely free to use with no registration required.

Q.What is the maximum file size?

You can upload files up to 50 MB for encoding, hashing, or formatting.

Every Developer ToolYou'll Ever Need