About nanotool.ing
nanotool.ing is a collection of small, focused utilities for developers and technical users. Every tool does one thing well, runs entirely in your browser, and requires no account.
Why these tools?
Most developer tools online come with popups, paywalls, login walls, or vague privacy policies. nanotool.ing exists as a clean alternative: open the page, use the tool, close the tab. Nothing saved, nothing sent.
What we build and why
Each tool starts from a real task a developer faces: decoding a JWT during an API debug session, converting a timestamp from a log file, checking what that cron expression actually does on Fridays. We try to make the output useful enough that you learn something, not just get an answer.
Privacy by default
Processing happens in your browser. We do not see your input. We do not store it. We do not log it. See the privacy policy for full details.