About DevKit
A practical toolbox for developers, QA engineers and analysts who need quick transformations, inspections and comparisons — without installing software or creating an account.
01
Local-first
Core processing happens in your browser.
02
No surprise uploads
Tool input is never sent to a server.
03
Fast path first
Samples, sensible defaults and visible copy actions.
04
Explain errors
Actionable messages with line and column where possible.
05
Honest security
Decoding is not verification. Encoding is not encryption.
06
Accessible
Keyboard access, visible focus and reduced-motion support.