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.
Lookup gRPC status codes from 0 (OK) to 16 (Unauthenticated) with descriptions and common causes for each error.
Generate fake personal data including names, emails, phone numbers, and addresses. Perfect for testing forms, databases, and application development.
Scan text and code for leaked secrets and credentials. Detects Stripe keys, GitHub tokens, Slack tokens, Google API keys, AWS keys, OpenAI keys, JWT tokens, private keys, and config passwords.
Add professional headers and footers to every page of your PDF. Supports text, page numbers ({{page}}/{{total}}), dates, and custom alignment. Perfect for reports and official documents.
Analyzes your writing with real-time word count, sentence count, syllable count, paragraphs, and advanced readability metrics — Flesch-Kincaid Reading Ease, Grade Level, estimated speaking time, and keyword density. Essential for writers, students, and SEO professionals optimizing content for readability.
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's ideal for developers, designers, and anyone who needs to look up service names for tcp/udp port numbers — well-known (0-1023), registered (1024-49151), and dynamic/private (49152-65535) ranges without installing software or sending data to external servers.
Direct text entry, file upload, or URL-based input — depending on the tool. Paste or type your content directly into the provided editor area.
Yes. After the initial page load, Port Number Lookup runs entirely on your device with no internet connection needed. All processing is done locally.
Tools cover JavaScript, CSS, HTML, SQL, Python, JSON, XML, CSV, and more. Check individual tool descriptions for specifics.
No. All code processing — formatting, minification, conversion, hashing — runs locally in your browser.
Yes. Since processing is local, performance depends on your device. Most operations handle large files without issue.
Yes. SQL uses sql-formatter, JSON uses native JSON.parse, and other formatters follow widely adopted formatting rules.
Yes. All developer tools work fully offline after the initial page load.
Time Converter
Convert between time units including seconds, minutes, hours, days, weeks, months, and years with precise decimal results.
Diff Checker
Compares two input texts side-by-side, highlighting inserted, deleted, and changed lines with distinct background colors.
Regex Tester
Provides an interactive environment where users can write a regular expression pattern, test it against sample strings, and view real-time match.
JSON Formatter
Pretty-prints raw JSON with configurable indent width, key sorting, and bracket collapsing options while flagging syntax errors with exact.
JS Minifier
Strips comments, whitespace, and shortens local variable names in JavaScript source without altering execution semantics.
Base64 Encode/Decode
Encodes text or small files into Base64 strings and decodes them back with automatic MIME-type detection for binary safety.