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Developer Tools

Debug APIs, tidy payloads, and inspect tokens without leaving the browser.

Developer tool tutorials & guides →

Developers & DevOps · Free tier available · Trust center

Tools in this category

HTML Formatter

Beautify HTML markup.

JSON Formatter

Validate and pretty-print JSON.

JWT Decoder

Inspect JWT header and payload.

Img to Base64

Free online tool — no install.

Browser OCR Tool

Free online tool — no install.

Binary to Decimal

Free online tool — no install.

Decimal to Binary

Free online tool — no install.

URL Encoder

Free online tool — no install.

URL Decoder

Free online tool — no install.

Text Comparer

Free online tool — no install.

DNS Lookup

Free online tool — no install.

Common use cases

  • Pretty-print JSON API responses for debugging
  • Decode JWT header and payload during auth integration
  • Format minified HTML templates before commit
  • Compare config file diffs during code review

FAQ

Is JWT decoding secure?

Decoding is client-side for inspection only — never paste production secrets into shared machines.

Do you log pasted JSON or tokens?

Developer tools process input for formatting; see our trust center for retention policies on server-backed tools.

Are there file size limits?

Large payloads may hit browser memory limits before server limits on client-side formatters.

Ready to try it?

3 free uses per day · 200 MB · no signup · files deleted after download

Open free tool Pro — $8.99/mo Trust center