About the Developer Utilities
NKable's developer utilities are the small tools that interrupt real work: decoding a JWT, hashing a string, testing a regex, generating a UUID or password, converting a timestamp or number base, and looking up an HTTP status or chmod value. All run in your browser.
These developer utilities exist because each one is a thirty-second job that otherwise costs five minutes. Decoding a token to check its expiry, converting a Unix timestamp to a readable date, working out which chmod number gives 644, or generating a UUID for a test fixture.
Almost all of them run entirely in your browser. That matters more here than in most tool categories, because the inputs are tokens, hashes, config values and API responses — exactly the things that should not be pasted into a hosted service.
Several are pure reference rather than interactive: HTTP status codes, DNS record types, HTML entities and a regex cheatsheet. Those are here because looking something up should not require reading a specification.
How to use the Developer Utilities
- Pick a utility. Choose the tool or reference page you need from the list.
- Paste your input. Enter the token, string, number or value to work on.
- Read the result. Output appears as you type, with no submit step.
- Copy what you need. Take the result to your terminal, editor or config.
Developer Utilities features
- JWT decoding and inspection
- MD5, SHA-256 and SHA-512 hashing
- Regex testing with live match highlighting
- UUID, password and random string generation
- Timestamp, number base and unit conversion
- HTTP status, DNS record and HTML entity references
- Almost every tool runs entirely in your browser
Frequently asked questions
Are these utilities free?
Yes. Every one is free with no account, no rate limit and no paid tier.
Is my input sent to a server?
Almost all of them run entirely in your browser. The few that need a server say so on their page.
Can I use these for production secrets?
The browser-based tools never transmit input, so decoding a token or hashing a value is safe. Still avoid pasting live credentials anywhere unnecessarily.
Do they work offline?
Once a tool page has loaded, the browser-based ones keep working without a connection.
Do they work on mobile?
Yes. Every utility works in a mobile browser, including paste and copy.