Compare semantic version numbers. Check if one version is greater than, less than, or equal to another using semver rules. Everything runs locally in your browser — nothing is uploaded.
Generate easy-to-remember passphrases using random word combinations with separators, numbers, and capitalization. More secure than dictionary words, easier to remember than random strings.
Generate fake credit card numbers with valid formats including Visa, Mastercard, Amex, and Discover. All numbers pass Luhn algorithm validation. Everything runs locally in your browser — nothing is uploaded.
Generate random TCP/UDP port numbers from well-known, registered, or dynamic ranges. Useful for network testing, Docker port mapping, and firewall configuration.
Compare and convert between A0, A1, A4, Letter, and Legal paper sizes. Understand how many sheets of one size fit into another.
Convert Less variables and syntax to plain CSS. Comment out Less variables and output standard CSS. Everything runs locally in your browser — nothing is uploaded.
Semver Calculator lets you compare semantic version numbers. Check if one version is greater than, less than, or equal to another using semver rules. Everything runs locally in your browser — nothing is uploaded.. It works on any device with a modern web browser.
Compare semantic version numbers. Check if one version is greater than, less than, or equal to another using semver rules. Everything runs locally in your browser — nothing is uploaded. It runs entirely in your browser — no software installation or data uploads required.
Paste or type your content directly into the provided text area.
Yes. After the initial page load, Semver Calculator runs entirely on your device with no internet connection needed. All processing is done locally.
Compare semantic version numbers. Check if one version is greater than, less than, or equal to another using semver rules. Everything runs locally in your browser — nothing is uploaded. All processing runs locally — no code is sent to any server.
Tools cover JavaScript, CSS, HTML, SQL, Python, JSON, XML, CSV, and more. Check the tool description for specifics.
Yes. Since processing is local, performance depends on your device. Most operations handle large files without issue.
Yes. Formatters use well-known libraries (sql-formatter, Prettier-compatible patterns) and follow widely adopted rules.