$ developer-toolbox --help
The small tools you open ten times a day
Base64, URL encoding, hashes and a JSON formatter in one tab. Paste, read the result, move on. Everything is computed in your browser.
developer-toolbox
Four tools, one tab
Encode, decode, hash and format without hunting for bookmarks.
Local only
Paste tokens and payloads freely. Nothing is sent to any server.
UTF-8 aware
Non-ASCII text round-trips correctly through Base64 and URL encoding.
$ faq
Which hashes are supported?
SHA-1, SHA-256, SHA-384 and SHA-512, computed with your browser’s built-in crypto API. MD5 is deliberately left out.
Is it safe to paste secrets?
The page makes no network requests with your input. Still, treat real production secrets with care.
Is there an API?
No. The tools are for people, not for scripts.