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Developer Tools
JSON, JWT, Base64, UUID, hashing, and everyday encoding utilities for engineers — 24 free tools, no signup required.
Developer Tools on TechHowAI cover the everyday utilities engineers open beside their IDE: JSON formatting and validation, JWT inspection, Base64 encoding, UUID generation, hashing, password generation, and QR codes. Each tool runs in the browser when possible so secrets and payloads stay on your machine.
These pages are written for working developers — not marketing fluff. You get a working tool plus explanations, examples, common mistakes, and links to deeper blog guides such as our JWT and JSON articles.
All Developer Tools
Who these tools are for
- Backend and full-stack engineers debugging APIs and auth tokens
- Frontend developers validating JSON configs and feature flags
- Security-conscious teams that want client-side processing for secrets
- Students learning web standards like Base64, UUID, and JWT
How to choose
- Start with JSON Formatter when an API response looks wrong
- Use JWT Decoder to inspect claims before you change auth code
- Generate UUIDs and passwords locally when provisioning test data
- Hash strings when you need a quick SHA checksum without installing CLI tools
FAQ
Do developer tools upload my code?
Most developer tools on TechHowAI process input entirely in your browser. Check each tool page for whether it is client-side or server-side.
Can I use these tools in production workflows?
They are excellent for debugging and learning. For production pipelines, prefer libraries and CI scripts — use TechHowAI for interactive inspection.
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