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Tutorials, references and tips for the tools you use every day.

10 Free Dev Tools Every Programmer Should Bookmark

A curated list of 10 free, no-signup dev tools that save time every day.

Pretty-print minified JSON in one click. Essential for debugging and reading API responses.

MD5, SHA-1, SHA-256: what they are and when to use each.

How query parameters work and why encoding matters for URLs and APIs.

Keep indentation and line breaks when sharing code in docs or chat.

Use SHA-256 and proper salting for password hashing. What to do and what to avoid.

Encode and decode Base64 entirely in the browser—no server, no signup.

A quick reference for common regex patterns: emails, URLs, numbers, and more.

Learn what a JWT is, how it's structured, and when to use it for auth and APIs.

Use a JSON formatter to inspect and debug API responses quickly.

Validate and format JSON instantly with a free online tool. No signup required.

Generate Lorem Ipsum or custom placeholder text for mockups and demos.