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