Free tools for marketing agencies

Percentage Calculator Percentage change, uplift and percentage points for client reports, with the formula shown. UTM Builder Build consistent, lower-case campaign links for client newsletters, paid social and print, so every visit lands under the right source in GA4. Schema Markup Generator Produce Local Business, FAQ, Article and Product JSON-LD for client pages from a simple form, then test it with the schema validator. Meta Tag Generator Generate title, description, canonical, Open Graph and X card tags in one go, with a share preview to show the client. SERP Snippet Preview Mock up search snippets for client sign-off, with pixel-width meters instead of guesswork about character counts. Meta Tag Checker Check titles, meta descriptions, canonical tags and robots directives on any client page. It is a fast first look during a discovery call or pitch preparation. Schema Markup Validator Validate LocalBusiness, Product, Organization and FAQ structured data. Many client sites have schema added by plugins that is broken or duplicated. Redirect Checker Trace redirect chains on key landing pages and old campaign URLs. Shortening chains to one hop is a quick, visible win after a site migration. Broken Link Checker Find broken internal and outbound links on client pages. It is easy to explain to clients and often reveals deleted pages that still have backlinks worth redirecting. XML Sitemap Checker Check the client sitemap lists canonical, indexable URLs only. Sitemaps full of redirects and 404s are common on sites that have been rebuilt more than once. Hreflang Checker For clients selling in the UK, Ireland and beyond, validate hreflang tags and return links so the right regional page appears in each market. Open Graph Checker Confirm social preview images and titles before a paid social or content campaign goes live, so shared links look professional. AI Crawler Checker Answer the AI search question with facts: show whether the client's robots.txt allows GPTBot, PerplexityBot, ClaudeBot and Google-Extended. Keyword Density Checker See which terms a page actually repeats. Use it to spot over-optimised copy and keyword stuffing rather than chase a target percentage. Email Deliverability Checker Before blaming email copy, check the client domain for SPF, DKIM, DMARC and MX issues. Fixing authentication can lift inbox placement for every future campaign. Image Resizer Produce campaign creative at the right size with presets for Instagram posts and stories, LinkedIn share images, YouTube thumbnails and email headers, all in the browser. QR Code Generator Create static QR codes for print campaigns and events, in PNG or SVG with brand colours. They never expire and have no redirect, so they keep working if you part ways wit... Aspect Ratio Calculator Turn any width and height into a simple ratio, match it to 16:9, 4:5 or 1 AI Content Visibility Checker Paste any page address to see whether AI search tools may fetch it, whether its text is in the HTML, and whether it is written so a passage can be quoted Keyword Grouping Tool Paste a keyword list or upload a CSV export, and group it into topics you can plan one page around, with intent buckets and summed volume, impressions and clicks Bulk Redirect Checker Paste or upload up to 100 URLs and see where each one really ends: every hop with its status code, chains, loops and temporary redirects, plus a match check against the t... Email Verifier Check whether an email address looks deliverable before you send: format, typos, mail servers, disposable and role addresses, one at a time or 50 at once Spin the Wheel – Random Name Picker Turn any list into a colorful wheel, spin it to pick a random name or option, and draw several winners or split everyone into random groups in one click Color Palette Generator Build a palette from one color, pull the main colors out of an image, or press the space bar for random ideas Privacy Policy Generator Answer five short questions about your business, the data you collect and the tools you use, and get a starting-point privacy policy you can review, edit and publish WHOIS Lookup See the full public registration record for any domain: registrar and abuse contact, key dates, every status code in plain English, nameservers, DNSSEC and the raw record Image Alt Text Checker Paste a page address to list every image on it, see which have missing, empty or placeholder alt text, and find image links that screen readers cannot name llms.txt Checker & Generator Enter a website to validate its llms Website Technology Checker Enter any website to find out which CMS, builder or store platform it runs on, the scripts and services it loads, and who hosts its website, DNS and email, with the evide... MTA-STS, TLS-RPT & BIMI Checker Enter a domain to validate its MTA-STS record and policy file, confirm the policy lists every mail server, check TLS-RPT reporting, and see whether BIMI is set up and all... Color Contrast Checker Enter a text color and a background color to see their WCAG contrast ratio, whether they pass AA and AAA for normal and large text and for UI parts, and the closest shade... Mixed Content Checker Enter a page address to find every resource it still loads over plain http://, see which ones browsers block or upgrade, and check whether each file is already available...