Useful Developer Tools Every Browser Should Have

Small developer utilities save time during debugging, testing, documentation, and API work. A good toolkit should be fast, simple, and easy to use without account creation.

Common tasks include formatting JSON, decoding Base64, generating UUIDs, comparing text, cleaning strings, and checking colors.

Do not paste production secrets, private keys, passwords, access tokens, or confidential customer data into unknown online tools.

For public examples, test data, mock payloads, and non-sensitive snippets, browser tools can speed up daily work significantly.

A good tool should give clear errors, preserve input where possible, allow copying results, work on mobile and desktop, and explain what it does.

Helpful pages should also include examples, supported formats, common mistakes, and related tools so users can solve the full workflow.