Documentation hub

Check WCAG contrast ratios, review APCA guidance, and preview text, links, and buttons before launch.

Encode or decode Base64 with wrap presets, URL-safe toggles, and binary-aware previews.

Normalize copy, identifiers, and config keys with case presets.

Compare checksum values with normalization controls and mismatch diagnostics.

Beautify or minify HTML, CSS, JavaScript, and SQL with copy-ready output.

Translate raw seconds into readable durations with TTL presets and copy-ready summaries.

Turn calendar-style durations into total seconds with a compact workflow and quick validation checks.

Track word counts, characters, lines, and reading time.

Decode cron syntax, preview run windows, and grab copy-ready scheduler snippets.

Spot unused selectors, build safelists, and copy purge-ready tokens.

Move between CSV exports and JSON arrays with delimiter controls and row stats.

Generate Unix timestamps from calendar dates and times with timezone-aware output.

Check core DNS records for a public domain and review grouped answers by record type.

Handle URL encoding, raw URL encoding, and HTML entities.

Extract URLs, emails, hashtags, mentions, and numbers.

Generate favicon bundles, manifest files, and download-ready assets from one upload.

Generate digests, compare reference hashes, and reuse curated presets.

Build Cache-Control recipes or explain pasted header values with TTL math and companion header guidance.

Inspect final response headers, prioritize security coverage, and review cache, compression, and robots signals.

Convert uploaded images into Base64 strings or data URIs with preview metadata.

Use the shared converters hub and pair routes to move between common image formats.

Validate, pretty-print, and minify JSON payloads with copy-ready output.

Decode token claims, verify HMAC signatures, and audit expiry windows.

Number lines and control blank rows.

Preview search and social metadata cards before you publish.

Generate title, description, canonical, Open Graph, Twitter, and robots tags.

Generate passwords with presets and custom character sets.

Convert Unicode hostnames to ASCII punycode and decode punycoded labels back to readable Unicode.

Escape regex metacharacters before you paste a literal string into a pattern.

Encode bare text as raw punycode or decode bare punycode lines back to Unicode without hostname parsing or xn-- prefixes.

Inspect redirect chains hop by hop and confirm final destinations.

Compare redirect chains before launch.

Compare pasted robots.txt snapshots or fetch live files from public URLs.

Generate robots.txt files with path rules, host directives, and sitemap lines.

Generate JSON-LD for common page, article, and product schema types.

Add or strip slashes for copied text.

Generate URL slugs and compare naming styles before publishing.

Sort, reverse, and mirror lists with simple controls.

Inspect the leaf TLS certificate for a public hostname and review SAN coverage, issuer details, and expiry status.

Validate JSON-LD schema markup and review repair hints.

Compare two text blocks and copy a unified patch.

Convert Unix timestamps into readable datetimes with timezone highlights and copy-ready snippets.

Generate UUID batches and share checksum evidence with the result.

Trim edges, remove duplicates, and control blank lines.

Look up registrar, dates, statuses, nameservers, and raw WHOIS text for a public domain.

Bulk upload URLs and generate XML sitemap output.

Convert YAML and JSON with clear workflow steps, structure checks, and indentation guidance.