JSON Formatter & Validator
Validate, pretty-print, and minify JSON payloads safely using native JSON.parse and JSON.stringify with detailed syntax error reporting.
HTML Minifier
Safe ParserMinify HTML code conservatively by stripping safe comments and collapsing inter-tag whitespace while preserving <pre>, <textarea>, <script>, and <style> blocks.
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How to Use HTML Minifier
- 1Paste your HTML document or template snippet into the input editor.
- 2Choose your conservative optimization toggles: Remove Safe HTML Comments, Collapse Whitespace, and Trim Attribute Spaces.
- 3Click 'Minify HTML' to run the tokenizer and inspect the Before Size, After Size, and Percentage Saved.
- 4Copy the minified HTML or download it as an `.html` file.
Key Features & Privacy
- ✦Conservative block-aware tokenizer that isolates and protects `<pre>`, `<textarea>`, `<code>`, `<script>`, and `<style>` content before collapsing whitespace.
- ✦Removes standard HTML comments (`<!-- ... -->`) while preserving IE conditional comments (`<!--[if ...]`) and `[!IMPORTANT]` directives if present.
- ✦Displays exact byte count before and after minification with percentage reduction.
- ✦Transparent scope note explaining conservative transformations.
Frequently Asked Questions
Will this minifier break my inline `<script>` or `<pre>` code blocks?
No. Our conservative minifier extracts `<pre>`, `<textarea>`, `<script>`, and `<style>` regions into protected tokens before collapsing whitespace, then restores them verbatim.
Does this replace a full AST build-step compiler?
It uses conservative lexical transformations designed to safely reduce HTML payload size without altering DOM semantics, though complex edge-case templates should always be tested.
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