Look up service names for TCP/UDP port numbers — well-known (0-1023), registered (1024-49151), and dynamic/private (49152-65535) ranges. Includes 25+ common services. 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.
Lookup gRPC status codes from 0 (OK) to 16 (Unauthenticated) with descriptions and common causes for each error.
Look up Common Vulnerabilities and Exposures (CVE) by ID or keyword search. Everything runs locally in your browser — nothing is uploaded.
Verifies any GSTIN (Goods and Services Tax Identification Number) instantly — returns legal name, trade name, address, registration date, and filing status. Supports bulk CSV export for accounts teams.
Validates Aadhaar numbers using Verhoeff checksum verification. Checks format rules, detects fake UIDs, and explains Aadhaar number structure. Fully local validation with no data upload.
Port Number Lookup lets you look up service names for TCP/UDP port numbers — well-known (0-1023), registered (1024-49151), and dynamic/private (49152-65535) ranges. Includes 25+ common services. Everything runs locally in your browser — nothing is uploaded.. It works on any device with a modern web browser.
Look up service names for TCP/UDP port numbers — well-known (0-1023), registered (1024-49151), and dynamic/private (49152-65535) ranges. Includes 25+ common services. Everything runs locally in your browser — nothing is uploaded. It runs entirely in your browser — no software installation or data uploads required.
Enter a URL, domain name, or IP address.
Yes. After the initial page load, Port Number Lookup runs entirely on your device with no internet connection needed. All processing is done locally.
Look up service names for TCP/UDP port numbers — well-known (0-1023), registered (1024-49151), and dynamic/private (49152-65535) ranges. Includes 25+ common services. 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.