Random port generator, chmod calculator (numeric/symbolic), Docker run to Compose converter, YAML formatter, and email address normalizer. Everything runs locally in your browser — nothing is uploaded.
Bidirectional YAML to JSON and JSON to YAML conversion with auto-format detection and real-time preview. Perfect for configuration files, API payloads, and data migration.
Validate docker-compose.yml files — checks YAML syntax, correct indentation, tab usage, and the presence of the services section. Identifies mixed indentation and formatting issues.
NATO phonetic alphabet converter, ASCII binary converter, Unicode code point viewer, Roman numeral converter, and string obfuscator with leet speak, ROT13, Base64, and shuffle.
Email Signature Generator builds HTML email signatures through a form-based UI with social link fields and icon toggles.
JSON diff comparison, WiFi QR code config generator, SVG placeholder generator, international phone number parser, OTP code generator, and slugify tool.
Developer Utilities lets you random port generator, chmod calculator (numeric/symbolic), Docker run to Compose converter, YAML formatter, and email address normalizer. Everything runs locally in your browser — nothing is uploaded.. It works on any device with a modern web browser.
Random port generator, chmod calculator (numeric/symbolic), Docker run to Compose converter, YAML formatter, and email address normalizer. Everything runs locally in your browser — nothing is uploaded. It's ideal for developers, designers, and anyone who needs to random port generator, chmod calculator (numeric/symbolic), docker run to compose converter, yaml formatter, and email address normalizer without installing software or sending data to external servers.
Direct text entry, file upload, or URL-based input — depending on the tool. Common file formats are supported for upload-based tools.
Yes. After the initial page load, Developer Utilities 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.