All tools · page 278
6,901 free tools across 25 categories. Tools marked with a lightning bolt are ready to use right now.
Generate a preview thumbnail of a PDF's first page in one step.
Extract the text of one specific page — handy for citations and quotes.
Stamp CONFIDENTIAL, DRAFT or your brand across every page — diagonal or horizontal, any opacity.
Inspect title, author, producer, creation dates and page count of a PDF.
Trim margins from every page by percentage — fixes oversized scanner borders.
Actually shrink heavy PDFs by re-encoding pages at optimized quality — see the savings.
Convert a color PDF to grayscale for printing and smaller size.
Fetch your sitemap.xml and automatically check that every listed URL actually loads — catch 404s before search engines do.
Crawl up to 80 pages and grade title tags, meta descriptions, H1s, canonicals, thin content, mixed content and more — with a prioritized fix list.
Crawl a site, test every internal and external link, and report exactly which pages are broken and where they're linked from.
Crawl the site and audit every page's title and description length, plus missing and duplicate pairs.
Find every image without alt text across a site — required for WCAG accessibility and image SEO.
Map the H1/H2 outline of every crawled page and flag pages with missing or multiple H1s.
A complete crawl table: status codes, redirects, HTML size, image and link counts per page.
Crawl a site and summarize every outbound domain it links to, ranked by link count — great for link audits.
Crawl a website and collect every published email address and social profile link with the pages they were found on.
Detect the CMS, frameworks, CDN and server tech behind any website from headers, meta tags and known paths.