Free SEO Tools — Meta Tags, Sitemaps, Image SEO & YouTube Limits
SEO Tools on Apex Toolz help publishers, developers, and marketers ship pages that search engines and social platforms understand. Image SEO utilities generate alt text suggestions, optimize filenames, strip metadata, and compress visuals for faster delivery — the visual half of on-page SEO often ignored until Lighthouse flags fail.
About this category
Web generators produce meta titles, descriptions, Open Graph tags, Twitter Cards, canonical links, robots.txt files, XML sitemaps, and JSON-LD schema — copy-ready HTML you paste into layouts or CMS fields. Preview and analyzer tools fetch live URLs to validate social cards, meta tags, favicons, and sitemap structure before launch.
YouTube SEO helpers check title, description, tag, and hashtag length against platform limits so creators paste copy that is not truncated mid-hook. SERP Preview Studio visualizes how titles and descriptions may appear in Google results.
Generators run locally in your browser — campaign copy and staging URLs are not stored on Apex Toolz servers. Live URL analyzers fetch public pages when you submit a URL; use staging carefully if pages are not yet public.
Browse subcategories for image SEO, web generators, checkers, and YouTube utilities, or start with featured tools below.
Technical SEO and content SEO intersect on every publish: crawlability depends on robots.txt and sitemaps, while rankings depend on useful titles and fast pages. Apex Toolz separates those concerns into dedicated generators so you can assign head-tag work to developers and copy-length work to editors without blocking each other.
International and multi-brand sites multiply metadata surface area — hreflang, canonicals, and unique OG images per locale. Generators produce consistent HTML fragments your templates can include, reducing copy-paste errors when marketing ships ten landing variants under deadline.
Why use these tools
Launching landing pages under deadline skips head-tag basics — generators ensure charset, viewport, canonical, and OG tags are not forgotten alongside title and description.
Social previews drive click-through; missing og:image yields ugly link cards even when on-page SEO is perfect.
Image-heavy blogs fail accessibility audits without descriptive alt text — Alt Text Generator accelerates drafts human editors refine.
Sitemap and robots.txt mistakes hide new routes from crawlers or accidentally block staging paths copied to production.
Structured data eligibility for rich results starts with valid JSON-LD that mirrors visible content — Schema Markup Generator accelerates first drafts your engineers validate in Search Console.
YouTube and social SEO share thumbnail and title constraints — pairing SEO Tools with Social Media Tools keeps visual and textual metadata aligned before upload.
Featured tools
Meta Tag Generator
Generate title, description, charset, and viewport meta tags for any page.
Open Graph Generator
Create og:title, og:description, og:image and og:url tags for social sharing.
Sitemap Generator
Discover site pages automatically or paste URLs manually, then download XML sitemap for Google Search Console.
robots.txt Generator
Load or build robots.txt with allow/disallow rules and sitemap URL — fetch from your live site or start fresh.
Alt Text Generator
Generate descriptive alt text suggestions from your image filenames and dimensions.
Schema Markup Generator
Build JSON-LD structured data for Organization, WebSite, Article, and Product.
Canonical URL Generator
Generate rel=canonical link tags to prevent duplicate content issues.
SERP Preview
Preview how your SEO title and meta description appear in Google search results.
Tool categories
Image SEO
Alt text, filenames, metadata & image optimization
Alt Text Generator
Generate descriptive alt text suggestions from your image filenames and dimensions.
Image SEO Optimizer
Compress images and strip metadata for faster page loads and cleaner SEO delivery.
Filename Generator
Create clean, SEO-friendly filenames from your images before publishing online.
Metadata Viewer
Inspect EXIF, camera, and GPS metadata embedded in your photos.
Metadata Remover
Remove EXIF, GPS, and camera metadata before publishing images online.
Web SEO Generators
robots.txt, sitemaps, meta tags, Open Graph & schema
robots.txt Generator
Load or build robots.txt with allow/disallow rules and sitemap URL — fetch from your live site or start fresh.
Sitemap Generator
Discover site pages automatically or paste URLs manually, then download XML sitemap for Google Search Console.
Meta Tag Generator
Generate title, description, charset, and viewport meta tags for any page.
Open Graph Generator
Create og:title, og:description, og:image and og:url tags for social sharing.
Twitter Card Generator
Generate Twitter Card meta tags for summary and large image previews.
Schema Markup Generator
Build JSON-LD structured data for Organization, WebSite, Article, and Product.
Canonical URL Generator
Generate rel=canonical link tags to prevent duplicate content issues.
Web SEO Checkers
Preview social cards, analyze meta tags & validate robots/sitemap
OG Preview
Fetch any URL and preview how its Open Graph card appears when shared.
Twitter Preview
Preview Twitter Card title, description, and image for any live page URL.
Favicon Checker
Detect and validate favicon links declared on any website.
Meta Analyzer
Analyze title, description, Open Graph, and Twitter meta tags from a live URL.
Social Preview Studio
Preview link cards for Facebook, X, and LinkedIn with your title, description, and image.
SERP Preview
Preview how your SEO title and meta description appear in Google search results.
robots.txt Tester
Fetch and validate robots.txt for any domain — rules, sitemap directives & structure.
Sitemap Validator
Validate an XML sitemap URL and list discovered page entries.
YouTube SEO
Title, description, tag & hashtag length limits for YouTube
YT Title Checker
Check YouTube video title length against the 100-character limit with live remaining count and status.
YT Description Checker
Count characters in your YouTube description — 5,000 character limit with words, lines, and hashtag count.
YT Tag Counter
Count total tag characters and tags for YouTube — 500 characters and 30 tags max in YouTube Studio.
YT Hashtag Counter
Count YouTube hashtags and characters — see which 3 appear above the title and stay within 15 hashtags.
Common workflows
New landing page launch
From blank template to indexable, shareable page.
- 1Draft title and description in Meta Tag Generator and SERP Preview Studio.
- 2Add Open Graph Generator tags with a 1200×630 share image URL.
- 3Set Canonical URL Generator output to the preferred HTTPS URL.
- 4Build sitemap.xml with Sitemap Generator and reference it in robots.txt Generator.
- 5Validate with Meta Tag Analyzer and Open Graph Preview on the live URL.
Blog image SEO pass
Before publishing a media-heavy article.
- 1Optimize images with Image SEO Optimizer or JPEG Compressor from Image Tools.
- 2Generate alt text drafts with Alt Text Generator and edit for accuracy.
- 3Rename files with Image Filename Generator for readable slugs.
- 4Strip EXIF GPS with Image Metadata Remover when photos include location data.
- 5Publish with unique alt attributes per meaningful image.
YouTube upload checklist
Avoid truncated titles and descriptions.
- 1Paste title into YouTube Title Length Checker before filming wrap-up.
- 2Draft description and verify limits with YouTube Description Length Checker.
- 3Validate tags with YouTube Tag Character Counter.
- 4Design thumbnail using Social Media Tools and readability checkers.
- 5Cross-link video page with Open Graph tags on your blog announcement.
Site migration and redirect map
Preserve equity when URLs change.
- 1Export old URL list and map to new paths in a spreadsheet.
- 2Generate updated sitemap.xml with Sitemap Generator for new routes only.
- 3Verify robots.txt does not block migrated sections.
- 4Use Redirect Checker on sample old URLs after server rules deploy.
- 5Validate canonical tags on new pages point to themselves, not legacy paths.
Helpful tips
- Unique title and meta description per URL — never duplicate across entire sites.
- og:image must be absolute HTTPS URLs — relative paths fail many crawlers.
- Schema markup must reflect visible page content — hidden fake reviews risk penalties.
- Alt text describes function for screen readers — avoid keyword stuffing.
- Regenerate sitemap after information architecture changes, not once per year by habit.
- Pair with Image Tools when share images need compression before og:image upload.
- Robots.txt Generator is not a security tool — it guides crawlers, not authenticated users. Sensitive paths still need server-side access control.
- When analyzing competitor URLs with live checkers, respect rate limits and terms of service — diagnostic fetches are for your own staging and production pages first.
Explore further
Related categories
Image Tools
Apex Toolz Image Tools cover format conversion, compression, resizing, cropping, metadata, and batch workflows — all in your browser without uploading files to a server.
Social Media Tools
Social Media Tools cover YouTube creator utilities, thumbnail design QA, Instagram grids and carousels, platform-specific resizers, and profile picture exports.
Text Tools
Text Tools provide counting, casing, sorting, diffing, slug generation, UUID and regex utilities for writers, developers, and SEO workflows — processed locally in the browser.
Developer Tools
Developer Tools on Apex Toolz cover color systems, brand asset generation, URL utilities, and handoff-friendly exports for front-end and design workflows.
Frequently asked questions
Summary
SEO Tools unite image optimization helpers, head-tag generators, live analyzers, and YouTube limit checkers for modern publishing workflows. Each tool targets one job with copy-ready output or actionable previews.
Follow launch, blog image, and YouTube workflows above to reduce preventable SEO mistakes. Featured tools highlight Meta Tag Generator, Sitemap Generator, and Alt Text Generator entry points.
Related categories include Image Tools for asset prep, Social Media Tools for thumbnails, and Text Tools for slug and copy utilities that complement meta generation.
Treat SEO Tools as a checklist layer before every launch: unique metadata, valid social cards, crawlable sitemap, and accessible images. Small omissions compound across hundreds of URLs — generators make the boring parts repeatable so your team focuses on content quality instead of head-tag archaeology.