About NICETOOL.dev
NICETOOL.dev is a free collection of everyday developer utilities - converters, generators, encoders and debuggers - designed to be fast, clean and respectful of your data.
Our mission
Developers constantly need small utilities: decode a JWT, format JSON, convert a timestamp, test a regex. Many existing sites are slow, cluttered or send your data to a server. We build tools that open instantly, work on any device and keep your data on your machine.
What we offer
The site currently provides 41 tools, grouped into formatting and conversion, encoding and security, generators, text utilities and time scheduling. Every tool comes with documentation, and our blog explains the concepts behind them with practical examples.
Privacy first
Almost every tool processes data locally with JavaScript in your browser. Your text, files, tokens and keys are not uploaded or stored. Features that must use a server, such as the public IP lookup or testnet faucet, clearly say so.
Who builds NICETOOL.dev
NICETOOL.dev is built and maintained by Nguyễn Thành Nam (nbasic.dev), an independent developer who uses these tools every day. New tools and articles are added based on real needs and feedback from the community.
Nguyễn Thành Nam
Full-Stack Engineer · Backend & Platform
Full-stack engineer with 9+ years of experience building high-traffic APIs and platforms with Go, NestJS, PHP (Laravel, Phalcon) and Node.js. Specializes in GraphQL API design, real-time systems and performance optimization, and builds NICETOOL.dev for the developer community.
Get in touch
Have a suggestion, found a bug or want to collaborate? Contact us