Generate numeric PINs of configurable length from 4 to 10 digits for security codes, verification codes, and access tokens. Everything runs locally in your browser — nothing is uploaded.
Generate a security.txt file for your website following RFC 9116 standard. Specify contact email, security policy URL, encryption key, and expiry date for vulnerability disclosure.
HTTP headers (analyzer, generator for JSON/REST/GraphQL, cache header generator, status code checker), CORS & rate limit (CORS header generator, policy tester, rate limit header parser), env/config (.env parser, variable template generator, AMQP exchange config), and dev config (ESLint configs for React/Node/TypeScript/Next.js, HTTP retry policy builder with exponential/linear/circuit-breaker).
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.
Generate beautiful audio waveform visualizations from any audio file. Choose from bar, line, filled, or circular styles. Perfect for podcast artwork, music videos, and social media.
Calculate the area and perimeter of a rectangle from length and width. Simple geometry for construction, design, and planning.
PIN Generator lets you generate numeric PINs of configurable length from 4 to 10 digits for security codes, verification codes, and access tokens. Everything runs locally in your browser — nothing is uploaded.. It works on any device with a modern web browser.
Generate numeric PINs of configurable length from 4 to 10 digits for security codes, verification codes, and access tokens. Everything runs locally in your browser — nothing is uploaded. It's ideal for developers, designers, and anyone who needs to generate numeric pins of configurable length from 4 to 10 digits for security codes, verification codes, and access tokens 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, PIN Generator 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.