API Debugging Workflow
Master the art of inspecting payloads, validating JSON structure, and troubleshooting authentication flows with browser-based tools.
Practical Developer Resource
Practical tools for everyday developer workflows.
DevTools Hub provides browser-based utilities and technical guides for common development tasks. Tool inputs are processed in your browser; when signed in, tools that support history can also send input and output to your account history.
Browser-based processing
Conversions run in your browser. If you are signed in, some tools save input and output to your account history; see the privacy policy.
No Account Required
Basic tool use is available without signing up. Optional saved history requires an account.
Guidance with Each Tool
Tool pages include usage steps, examples, supported options, and limitations.
Toolbox
Core Utilities
JSON Formatter
Format, validate, and beautify JSON instantly.
JWT Decoder
Decode JWT tokens and inspect payload easily.
Base64 Converter
Encode text to Base64 and decode Base64 strings with UTF-8-safe handling.
Image to Base64
Convert images into Base64 strings.
Regex Tester
Test and debug regular expressions in real time.
UUID Generator
Generate UUIDs instantly for apps and APIs.
Learning
Educational Paths
Read Guide →
Working with Base64
Understand what Base64 does, where it is useful, and how to handle text and binary data in common JavaScript environments.
Latest Updates
Technical Blog
Updated 2026-10-26 • About 2 min read
Five Developer Tool Workflows for Everyday Tasks
A task-based guide to inspecting JSON, decoding JWTs safely, converting Base64, testing regular expressions, and generating frontend snippets.
Read Full PostUpdated 2026-10-26 • About 2 min read
How to Format JSON in JavaScript: A Practical Guide
Format JavaScript data with JSON.stringify, handle common serialization limits, and choose between readable and compact JSON.
Read Full PostUpdated 2026-10-26 • About 2 min read
How to Evaluate an Online Developer Tool Before Using It
A practical checklist for checking an online tool's behavior, data handling, validation, and generated output before use.
Read Full PostUpdated 2026-10-27 • About 3 min read
What Is Base64 Encoding? Examples, Uses, and JavaScript
Learn how Base64 represents bytes as text, see working JavaScript and Node.js encode/decode examples, and understand UTF-8, Data URIs, and its limits.
Read Full Post