19 tools WEB

Free Web & Code Tools

Utilities for the web stack: formatters for HTML, CSS, SQL, and XML, a JS minifier for production bundles, SVG optimization, OpenAPI validation, accessibility audits, and clean PWA checks. Your code, your markup, and your secrets stay local to your browser and never reach a server.

Runs in browserNo signup requiredAI-enhanced

19 tools in this category

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LocalAI

Accessibility Checker

Scan HTML for WCAG accessibility issues with AI-powered fix suggestions.

accessibilitya11yWEB
LocalAI

Bundle Size Analyzer

Analyze and visualize JavaScript bundle sizes with optimization suggestions.

bundlewebpackWEB
Local

URL Encoder/Decoder

Encode, decode, and parse URLs and query strings instantly.

urlencodeWEB
Local

SQL Formatter

Format, minify, and validate SQL queries with dialect support.

sqlformatWEB
Local

SVG Optimizer

Optimize, minify, and clean SVG files with configurable SVGO presets.

svgoptimizeWEB
Local

Color Converter

Convert colors between HEX, RGB, HSL, oklch, CMYK, and 16+ formats instantly.

colorconverterWEB
Local

HTML Formatter

Format, minify, and validate HTML with attribute sorting and template support.

htmlformatWEB
Local

CSS Formatter

Format, minify, and validate CSS with sorting and SCSS conversion.

cssformatWEB
LocalAI

cURL to Code Converter

Convert cURL commands to code in 12+ programming languages instantly.

curlconverterWEB
Local

HTML to Markdown

Convert HTML to Markdown with support for GFM, CommonMark, and Obsidian syntax.

htmlmarkdownWEB
Local

HTML Entities Encoder/Decoder

Encode and decode HTML entities with named, numeric, and hex modes.

htmlentitiesWEB
Local

XML Formatter

Format, minify, validate, and convert XML to JSON.

xmlformatWEB
LocalAI

OpenAPI Validator

Validate, format, and summarize OpenAPI/Swagger specifications.

openapiswaggerWEB
Local

JS Minifier / Beautifier

Format, minify, and validate JavaScript code instantly.

javascriptjsWEB
LocalAI

Responsive Design Tester

Preview web pages across multiple device viewports instantly.

responsiveviewportWEB
LocalAI

CSS Selector Tester

Test CSS selectors against HTML with real-time matching and specificity analysis.

cssselectorWEB
LocalAI

CSS Animation Generator

Generate CSS keyframe animations with visual preview and easing functions.

cssanimationWEB
LocalAI

PWA Manifest & Service Worker Audit

Validate manifest.json, inspect service worker config, and flag installability issues.

pwamanifestWEB
Local

GitHub Actions Validator

Validate, format and summarize GitHub Actions workflow YAML files against official schemas.

githubactionsWEB

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Frequently Asked Questions

Are the web & code tools free?+

Yes, all web & code tools are free with no limits. SQL formatting, URL encoding, JS minification, and validation all run directly in your browser.

Can I validate OpenAPI specs with these tools?+

Yes. The OpenAPI validator checks your spec for structural issues that violate the spec, and the PWA audit validates manifests and service workers.

Do I need to sign up to use the web tools?+

No. Every web & code tool works instantly from a paste, with no account and no data uploads.