Developer Data Tools
Browse Tools
Reference tool

ASCII Table

Inspect ASCII characters, decimal codes and hexadecimal values.

Tool Workspace

This tool runs in your browser. Developer Data Tools does not save pasted input to a server, but avoid using production secrets, access tokens, private keys or sensitive business data in any online page.

Ready. Processing runs in your browser.

Core Features

  • Run locally in the browser.
  • Copy generated output.
  • Use small examples while debugging.
  • Avoid sending pasted input to a server.

Common Errors

  • Using lightweight output as a substitute for project-specific validation.
  • Pasting secrets into examples.
  • Assuming every dialect or syntax extension is supported.

Real Developer Use Cases

  • Cleaning copied snippets.
  • Preparing documentation examples.
  • Creating local test data.
JSON Formatter & Validator

Format and validate copied API responses.

Text Diff Checker

Compare generated output and source snippets.

Base64 Encoder/Decoder

Inspect encoded data fragments.