Free Code & Developer Tools
Validate structured payloads, format code snippets, and convert encodings locally in your browser without sending API responses or source code to external servers.
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HTML Minifier / Beautifier
Collapse whitespace to minify HTML snippets or pretty-print nested markup locally in your browser with no server uploads.
Open tool →CSS Minifier / Beautifier
Format compressed CSS rules into readable multi-line blocks or minify stylesheet snippets to reduce byte size in your browser.
Open tool →JavaScript Minifier / Beautifier
Pretty-print compressed JavaScript snippets for readable debugging or collapse whitespace for small inline scripts locally in your browser.
Open tool →Base64 Encoder / Decoder
Encode UTF-8 text strings into RFC 4648 Base64 or decode Base64 payloads locally in your browser without sending data to a server.
Open tool →HTML Entities Encoder / Decoder
Escape reserved HTML characters (<, >, &, ", ') into safe character entities or decode escaped markup locally in your browser.
Open tool →MD5 Hash Generator
Compute 128-bit (32-character hexadecimal) MD5 checksum digests locally in your browser for non-cryptographic deduplication and legacy integrations.
Open tool →SHA-256 Hash Generator
Compute 256-bit (64-character hexadecimal) SHA-256 cryptographic hashes locally in your browser using the native Web Crypto API (crypto.subtle.digest).
Open tool →Color Picker & Converter
Pick a color visually or enter a #HEX code to convert instantly between HEX, rgb(), and hsl() CSS color tokens.
Open tool →Lorem Ipsum Generator
Generate dummy Lorem Ipsum paragraphs with a chosen word count locally in your browser for UI wireframes, typography tests, and layout mockups.
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Recommended Code & Developer Workflow
Format, validate, and minify API payloads or JSON-LD scripts using the JSON Formatter & Validator.
Clean up or compress inline templates with the HTML, CSS, and JavaScript Minifier / Beautifier tools.
Encode safe strings and checksums using the Base64 Encoder, HTML Entities Converter, and SHA-256 / MD5 Hash Generators.
Code & Developer Guides & Tutorials
Step-by-step SEO guides and technical references for code & developer workflows.
- Fix Breadcrumb Schema Missing Field 'item'Find which breadcrumb is missing its URL, fix the generating template, and test the deployed JSON-LD. Includes a before-and-after example.
- Breadcrumb Schema: JSON-LD Example & Fixes (2026)Add BreadcrumbList JSON-LD with a copyable example, required fields, and fixes for missing names, URLs, and positions. Includes Google's mobile display change.
- FAQ Schema in 2026: Rich Results Retired, What Now?Google retired FAQ rich results, not FAQ pages. Check what to keep, when to remove FAQPage markup, and how to validate your JSON-LD.
- Robots.txt Guide: Examples, Rules, and Indexing ChecksLearn robots.txt with practical Allow and Disallow examples, sitemap rules, and a checklist for diagnosing crawling versus indexing problems.