What we make
We maintain practical browser-based tools for everyday development work: JSON and SQL formatting, Base64 and URL conversion, text comparison, checksums, UUIDs, cron parsing, IP information, website reachability, and proxy checks. Each tool has a clear purpose, usable defaults, and an interface designed to stay out of the way.
How the site works
Most tools run directly in your browser. Inputs for those tools are not intentionally sent to our servers. Network tools are different: IP lookups, website checks, and proxy checks are clearly marked and use our service infrastructure only when you start the requested check. The tool page explains the data path before the interactive surface.
Our editorial principles
- Explain what a tool does and when server access is required.
- Prefer useful, original functionality over thin or duplicated pages.
- Keep navigation, policies, and contact information easy to find.
- Review tools for correctness, accessibility, and safe defaults.
Independent service
Dev Tools is an independent developer utility service. Product names and trademarks referenced in tool descriptions belong to their respective owners. We are not affiliated with Google, and advertising does not influence tool output.
We do not offer user accounts or sell submitted tool content. For support, privacy, legal, or advertising questions, use the Contact page.