HTML Metadata Inspector
Inspect page metadata and JSON-LD in supplied HTML, review source findings and export a report.
Plainview Tools
Resize images, compare drafts, check page details, and work through calculations with 39 free browser tools. Search for a task or choose a category to get started.
Searches names, descriptions, categories, and common terms such as JPG or EXIF. Press Escape to clear the search.
39 tools shown.
Inspect page metadata and JSON-LD in supplied HTML, review source findings and export a report.
Plan website goals, pages, content ownership and launch decisions, then export an editable brief and page inventory.
Plan fields, conditional steps, delivery and follow-up. Preview messages and export a brief with field mapping and a test checklist.
Convert Markdown, HTML and plain text with a reading preview, cleanup notes and downloadable output.
Find common HTML label, image, link, button and ID issues with source locations and an exportable report.
Format, minify and check JSON syntax with precise error locations, duplicate-key warnings and exact number preservation.
Clean up rows, choose and reorder columns, rename headers, and export CSV, TSV or JSON with a clear preview.
Create QR codes for links, text, email, phone numbers or Wi-Fi and download a PNG or SVG.
Build an XML sitemap from a URL list, or inspect a sitemap file for duplicates, date issues and common problems.
Plan URL changes, find duplicate rules, conflicts, loops and chains, and export your map or findings.
Build JSON-LD for websites, services, organizations, articles and breadcrumbs with guided fields and ready-to-use downloads.
Build campaign URLs one at a time or from a CSV, then copy or export your links.
Calculate percentage change and the difference between two values.
Count words, characters, sentences, and bytes in your browser.
Compare two drafts and see additions and removals by word or line.
Compare three English readability scores and the counts behind them.
Find likely passive phrases and review them in context.
See sentence lengths, patterns, and variation across a draft.
Compare a word count with broad planning ranges or your own target.
Turn your topic, audience, and notes into an editable writing outline.
Find potential internal links from the page inventory and copy you provide.
Preview your title, description, and URL in approximate search layouts.
Check a URL slug for readability, casing, and separators.
Review heading order and spot empty headings or skipped levels.
Convert between 14 CSS length units using your layout dimensions.
Check text and interface color pairs against WCAG 2.2 thresholds.
Try heading and body fonts with editable page copy, then copy the CSS.
Build robots meta tags and check for conflicting directives.
Compare a page URL with its canonical target and prepare link markup.
Review 18 questions about content, crawl access, and search eligibility.
Draft and validate an experimental llms.txt map of selected public pages.
Draft robots.txt rules and simulate how they apply to a crawler and URL.
Create favicon sizes, an Apple touch icon, and manifest files from one image.
Convert supported images to PNG, JPEG, or WebP in your browser.
Resize an image, process a batch or create responsive widths. Compare verified results and download individual files or a ZIP.
Compare original and exported file sizes, then estimate repeated page use.
Sample colors from an image and check the contrast of selected pairs.
Inspect supported image metadata and download a checked, cleaned copy.
Put the tools together
Work through the content, headings, links, search copy, and images before checking the finished page.
Choose a format, resize the image, compare quality and file size, and review its metadata before uploading.
Check the argument, sources, headings, wording, and links, then compare the final draft with the original.
Choose the questions needed for a useful response, then map the fields and follow-up steps.
Agree on campaign labels, build consistent links and understand what those labels can tell you.
Check headers and values, make deliberate cleanup choices and inspect the exported result.
Six categories
Browse tools for writing, images, search, design, accessibility, and everyday calculations.