DataToolkit

Free developer tools for encryption, network diagnostics, text processing, and data conversion.

Popular Tools

Editors

JSON, XML, YAML, Markdown, and text editors with syntax highlighting

Cryptography

Hash with MD5, SHA-1, SHA-256, and SHA-512

Network Tools

IP lookup, WHOIS, reverse DNS, ping, and subnet calculator

Generators

UUID, secure passwords, QR codes, and barcodes

Utilities

Base64, URL encoder, case converter, cron builder, and regex tester

Data Collections

Mobile networks, profanity lists, and service ports

Reference

ASCII table, HTML entities, emoji picker, and regex cheat sheet

Convert

Convert Word, HTML, and RTF documents to Markdown

Learn

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Cryptography

How Does HTTPS Work? TLS and SSL Explained

HTTPS encrypts traffic between your browser and a server using TLS. Learn how the TLS handshake works, what certificates do, how symmetric and asymmetric encryption are combined, and what the padlock really means.

Encoding

ASCII and Character Encodings Explained

Character encodings define how text is stored as bytes. Learn how ASCII works, why Unicode was created, what UTF-8 is, and why encoding mismatches cause garbled text.

Cryptography

How Do JWTs Work? JSON Web Tokens Explained

How the three parts of a JWT work (header, payload, signature), how HMAC signing verifies tokens without a database, and when JWTs are the wrong tool for the job.

Open Data Repository

Access raw datasets including mobile networks, profanity lists, service ports, and more on GitHub.

Visit GitHub Repository