Free Online Developer and Security Tools

Format and transform data

Format JSON, convert supported JSON and YAML, change CSV/TSV delimiters, or turn JSONL records into CSV.

• JSON Formatter Online
• JSON and YAML Converter
• CSV / TSV Converter
• JSONL to CSV

Encode, decode, and inspect

Work with Base64 and URL components, inspect JWT contents, and calculate hashes or HMAC values.

• Base64 Encoder & Decoder Online
• URL Encode / Decode
• JWT Decoder Online
• Hash Generator
• HMAC Generator

Generate values

Create passwords, passphrases, UUIDs, random strings, sample data, QR codes, or placeholder text.

• Password Generator
• Passphrase Generator
• UUID Generator
• Random String / Hex
• Random Data Generator
• QR Code Generator
• Lorem Ipsum Generator

Test and convert technical data

Test regular expressions, inspect cron schedules, convert Unix timestamps, and check password strength.

• Regex Tester
• Cron Parser & Creator
• Unix Timestamp Converter Online
• Password Strength Checker

Frequently asked questions

What is the difference between encoding and encryption?

Encoding changes how data is represented; it does not provide confidentiality. Encryption is designed to protect information from unauthorized access.

Does decoding a JWT verify its signature?

No. Decoding displays the readable header and payload, but does not verify the signature or prove that the claims are trustworthy.