Strips comments, whitespace, and shortens local variable names in JavaScript source without altering execution semantics.
Removes unnecessary whitespace, comments, and optional closing tags from HTML code to reduce file size without altering rendered output.
Removes unnecessary whitespace, comments, and trailing semicolons from CSS, while merging identical selector blocks where safe to do so.
Format and beautify source code in JavaScript, TypeScript, Python, HTML, CSS, SQL, YAML, XML, and Markdown.
Counts characters with and without spaces and compares your text against platform-specific limits — Twitter/X posts (280), SMS messages (160), SEO meta descriptions (160), Facebook posts (63,206), and LinkedIn summaries (2,600). Real-time counting with space/no-space toggle.
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.
JS Minifier lets you strips comments, whitespace, and shortens local variable names in JavaScript source without altering execution semantics.. It works on any device with a modern web browser.
Strips comments, whitespace, and shortens local variable names in JavaScript source without altering execution semantics. It's ideal for developers, designers, and anyone who needs to strips comments, whitespace, and shortens local variable names in javascript source without altering execution semantics 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, JS Minifier 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.
Base64 Encode/Decode
Encodes text or small files into Base64 strings and decodes them back with automatic MIME-type detection for binary safety.
Image to Base64
Converts uploaded images (PNG, JPG, GIF, SVG, WebP) into Base64-encoded data URI strings ready for embedding in HTML, CSS, or JSON.