Encoding & DecodingComing soon
URL Encoder/Decoder
Encode and decode URL components and query-string values.
In active developmentTool category
HTML & Web Tools
Format, preview, minify, encode, and inspect HTML, CSS, URLs, entities, and browser-facing code.Tools in this category
35 available now, 1 coming soon.
HTML & Web Tools
HTML Formatter / Beautifier
Format and beautify HTML locally with indentation and structural warnings.
/html-formatterHTML & Web Tools
CSS Selector Tester
Test CSS selectors against HTML and inspect matched elements, snippets, paths, and warnings.
/css-selector-testerHTML & Web Tools
HTML Minifier
Minify HTML locally with conservative whitespace, comment, and template-preservation options.
/html-minifierHTML & Web Tools
HTML Previewer / Live HTML Preview
Preview HTML live in an isolated browser frame with safety warnings and export actions.
/html-previewerText & Code Tools
Markdown to HTML Converter
Convert Markdown into sanitized, reusable HTML locally with preview, copy, and download actions.
/markdown-to-htmlHTML & Web Tools
Open Graph / Meta Tag Previewer
Preview Open Graph, Twitter Card, and SEO meta tags from pasted HTML.
/open-graph-meta-tag-previewerHTML & Web Tools
robots.txt Tester
Test pasted robots.txt rules locally for crawler access decisions and warnings.
/robots-txt-testerHTML & Web Tools
Sitemap XML Validator
Validate pasted sitemap XML and sitemap indexes locally with URL and field warnings.
/sitemap-xml-validatorHTML & Web Tools
HTML to Markdown Converter
Convert pasted HTML into readable Markdown locally.
/html-to-markdownHTML & Web Tools
Image Resizer
Resize PNG, JPEG, and WebP images locally with preview and download options.
/image-resizerHTML & Web Tools
Meta Tag Generator / Previewer
Generate SEO, Open Graph, and Twitter Card meta tags with live previews.
/meta-tag-generatorHTML & Web Tools
Image Compressor
Compress PNG, JPEG, and WebP images locally with preview and download options.
/image-compressorHTML & Web Tools
Image Format Converter
Convert PNG, JPEG, WebP, GIF, and SVG images locally with preview and download.
/image-format-converterHTML & Web Tools
EXIF Viewer / Remover
View and remove image EXIF metadata locally with privacy warnings and download.
/exif-viewer-removerHTML & Web Tools
Favicon Generator
Generate favicon PNG files, app icons, manifest icons, and HTML tags locally.
/favicon-generatorHTML & Web Tools
Color Picker / Color Converter
Pick colors and convert HEX, RGB, HSL, HSV, and CSS color formats locally.
/color-pickerText & Code Tools
JavaScript Formatter
Format and beautify JavaScript locally with syntax validation and configurable style options.
/javascript-formatterHTML & Web Tools
CSS Gradient Generator
Create linear, radial, and conic CSS gradients with editable color stops.
/css-gradient-generatorHTML & Web Tools
CSS Box Shadow Generator
Create layered CSS box shadows with live preview and copy-ready CSS.
/css-box-shadow-generatorHTML & Web Tools
Color Contrast Checker
Check text and background color contrast for accessible web interfaces.
/color-contrast-checkerHTML & Web Tools
CSS Formatter
Format and beautify CSS locally with syntax feedback and copy/download actions.
/css-formatterText & Code Tools
JavaScript Minifier
Minify JavaScript locally with syntax checks, size savings, and conservative options.
/javascript-minifierHTML & Web Tools
SVG Optimizer / Minifier
Optimize and minify SVG locally with validation, safe options, and size savings.
/svg-optimizerText & Code Tools
CSS Minifier
Minify CSS locally with syntax checks, size savings, and conservative options.
/css-minifierHTML & Web Tools
SVG Viewer / Formatter
View, format, inspect, copy, and download SVG markup locally with safe preview.
/svg-viewerHTML & Web Tools
UTM Link Builder
Build campaign tracking URLs with UTM parameters, custom params, copy actions, and QR preview.
/utm-link-builderEncoding & Decoding
HTML Entity Encoder/Decoder
Encode and decode HTML entities, symbols, and special characters locally.
/html-entity-encoder-decoderEncoding & Decoding
URL Parser / Query String Parser
Parse full URLs, relative URLs, and query strings into structured parts.
/url-parserEncoding & Decoding
Query Params to JSON Converter
Convert URL query parameters into clean JSON locally.
/query-params-to-jsonEncoding & Decoding
JSON to Query String Converter
Convert JSON objects into URL query strings locally.
/json-to-query-stringEncoding & Decoding
Image to Base64 Converter
Convert local image files to Base64, data URIs, HTML snippets, and CSS snippets.
/image-to-base64Security & Crypto
CSP Header Generator
Generate Content Security Policy headers with directives, warnings, and copy-ready output.
/csp-header-generatorSecurity & Crypto
CORS Header Explainer / Generator
Generate and explain CORS response headers locally with validation warnings.
/cors-header-generatorGenerators
QR Code Generator
Generate QR codes locally for URLs, text, email, phone, SMS, and Wi-Fi payloads.
/qr-code-generatorGenerators
Lorem Ipsum Generator
Generate placeholder text as words, sentences, paragraphs, or HTML locally.
/lorem-ipsum-generatorCommon tasks
- Format, preview, and minify HTML snippets and full documents.
- Encode and decode HTML entities for safe browser-facing text.
- Work with related JavaScript, CSS, URL, and web utility formats as they become available.
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