Free SEO & webmaster tools
No login · Zero barrier · Fast client-side runs. Cover crawler rules, sitemaps, bulk domain cleanup, and GEO optimization.
GPT Image 2
Type a prompt to generate an image, or upload a photo and have AI change the background, style or scene. Free daily runs, no sign-up.
Nano Banana
Try Google's new Nano Banana 2.1 (Gemini image model): generate from a prompt or upload a photo to restyle it. Free daily runs, no sign-up.
AI Figurine Generator
Upload a photo, pick boxed figure, chibi toy or action figure, and get a realistic figurine shot. Free daily runs, no sign-up.
AI Halloween Photo
Upload a photo, pick horror movie poster, haunted photo or Halloween costume, and get a spooky shot in seconds. Free daily runs, no sign-up.
Keyword Suggestions
Pull live search-box suggestions from up to 8 engines at once, expand A–Z and with questions, then export.
Backlink Checker
See total backlinks, referring domains, dofollow share and the 20 strongest linking domains with anchors.
Keyword Research Tool
Enter a seed keyword and get 50 related keywords by country with volume, difficulty, CPC and intent.
Keyword Difficulty Checker
Check difficulty (0-100), monthly volume, CPC and intent for up to 10 keywords at once, by country.
Keyword Rank Checker
Check where a domain ranks on Google for a keyword (top 30), by country, and whether an AI Overview cites it.
Website Traffic Checker
Estimate a site's monthly organic Google traffic, ranking keywords and top traffic keywords by country.
Domain Authority Checker
Check a domain's DataForSEO Domain Rank (0–1000), backlinks, referring domains, dofollow share and spam score.
Email Header Analyzer
Paste raw headers to see SPF, DKIM and DMARC results, the delivery path with per-hop delays, and phishing signs.
MX Lookup
Look up MX records and priorities, and see which email provider a domain uses.
SPF Checker
Check an SPF record, count its DNS lookups against the limit of 10, and expand every include.
DMARC Generator
Pick a policy and report address and get a DMARC record ready to paste into DNS.
SPF Generator
Tick Google Workspace, Microsoft 365, SendGrid, Amazon SES and more to get a valid SPF record.
DMARC & SPF Checker
Check SPF, DMARC, DKIM and MTA-STS, see whether your domain can be forged, and get step-by-step fixes.
AI Rewriter
Rewrite a paragraph or sentence in five modes and seven languages. 5 free runs a day, no sign-up.
AI Product Description
Turn product specs into a title, five bullet points, a product-page description and a meta description.
AI Cold Email
Get an opener, a follow-up and a break-up email, plus a check for spam-filter trigger phrases.
Robots.txt Checker
Free browser-based robots.txt checker for developers and SEOs.
TDK & Crawler Checker
Inspect Title, Meta Description, Keywords, H1 headings & Canonical tags simulating Googlebot & AI crawlers.
Sitemap Checker
Free browser-based sitemap checker for developers and SEOs.
Domain Extractor
Free browser-based domain extractor for developers and SEOs.
URL Slug Generator
Free browser-based url slug generator for developers and SEOs.
Keyword Density
Free browser-based keyword density for developers and SEOs.
Text Deduplicator
Free browser-based text deduplicator for developers and SEOs.
Template Replacer
Free browser-based template replacer for developers and SEOs.
llms.txt Generator
Free browser-based llms.txt generator for developers and SEOs.
SERP Preview
Free browser-based serp preview for developers and SEOs.
Schema Generator
Free browser-based schema generator for developers and SEOs.
Token Cost Calculator
Free browser-based token cost calculator for developers and SEOs.
HTTP Status Checker
Free browser-based http status checker for developers and SEOs.
API cURL Generator
Free browser-based api curl generator for developers and SEOs.
Meta Tag Generator
Free browser-based meta tag generator for developers and SEOs.
UTM Builder
Free browser-based utm builder for developers and SEOs.
Redirect Checker
Free browser-based redirect checker for developers and SEOs.
Hreflang Generator
Free browser-based hreflang generator for developers and SEOs.
Title & Description Checker
Free browser-based title & description checker for developers and SEOs.
Canonical Generator
Free browser-based canonical generator for developers and SEOs.
Word Counter
Free browser-based word counter for developers and SEOs.
Markdown Table Tool
Free browser-based markdown table tool for developers and SEOs.
Base64 Converter
Free browser-based base64 converter for developers and SEOs.
JSON Formatter
Free browser-based json formatter for developers and SEOs.
DNS Checker
Free browser-based dns checker for developers and SEOs.
HTML Entity Converter
Free browser-based html entity converter for developers and SEOs.
Website History
Free browser-based website history for developers and SEOs.
Long-Tail Keyword Finder
Enter a seed keyword to list long-tail variations with volume, difficulty, CPC and intent.
Google Autocomplete
Pull live Google search-box suggestions for any keyword and country.
People Also Ask Tool
Get the People Also Ask questions and related searches for any keyword.
Google Trends Comparison
Compare up to 5 keywords by Google Trends interest over 12 months.
Search Intent Checker
Classify up to 10 keywords as informational, commercial, transactional or navigational.
Amazon Keyword Tool
Check Amazon search volume and related Amazon search terms.
AI Search Volume
Estimate how often keywords come up in AI assistants each month.
Google SERP Checker
See live Google top 10 results and SERP features for any keyword and country.
Keyword Ranking Sites
See the top 10 on Google, Bing, Yahoo or Baidu for a keyword, with the authority, link, traffic, content and relevance metrics that explain each ranking.
AI Overview Checker
Check whether a keyword triggers an AI Overview and which sites it cites.
Bing Rank Checker
Find your site's live position in Bing's top 30 for any keyword.
YouTube Rank Checker
See the YouTube top 20 for a keyword and where your channel ranks.
Google Maps Rank Checker
See the top 20 Google Maps businesses for a local search and where you rank.
SEO Competitor Finder
Find the sites that rank for the same keywords as you.
Keyword Gap Tool
Compare two domains and list the keywords only your competitor ranks for.
Ranked Keywords Checker
See a site's top 50 ranking keywords with positions and ranking URLs.
Top Pages Checker
List the pages that earn a site the most organic traffic.
Subdomain Finder
List every subdomain of a site that ranks on Google.
Traffic History
See how a site's organic traffic and keywords changed month by month.
Bulk Traffic Checker
Compare organic traffic, keywords and paid traffic for up to 10 domains.
Referring Domains Checker
List the domains linking to a site, strongest first.
Anchor Text Checker
See the anchor text distribution of a site's backlinks.
Broken Backlink Checker
Find backlinks pointing at broken pages and redirect them.
Backlink Gap Tool
Find domains that link to your competitors but not to you.
Technology Checker
Detect a site's platform, CMS, CDN, analytics and marketing tools.
Websites Using a Technology
Enter a technology to see how many sites use it and the strongest ones.
WHOIS Lookup
See registration date, expiry, registrar, traffic and referring domains.
On-Page SEO Checker
Crawl a page and get an SEO score with the issues to fix.
Page Speed Test
Run Google Lighthouse for performance score and core metrics.
Brand Mention Checker
Count web mentions of a brand with sentiment and notable mentions.
AI Brand Visibility
See AI answers from Google AI Overview, ChatGPT and more that mention your domain.
Business Profile Checker
Check a business rating, reviews, claim status and nearby competitors.
HEIC to PDF
Turn iPhone HEIC / HEIF photos into one PDF or one PDF per photo, with page order, page size and margins.
PNG to ICO
Convert PNG, JPG or SVG into a multi-size ICO (16–256 px) for website favicons and Windows icons.
Video to Transcript
Transcribe MP4, MP3 and other video or audio files with Whisper running in your browser. Export TXT, SRT or VTT.
Screen Recorder
Record your screen with a webcam bubble, mic and system audio right in the browser. Up to 1440p 60 FPS, no time limit.
Private & fast
Text, regex, and domain cleanup tools run 100% in your browser — sensitive data never leaves your device.
GEO & AI search ready
Built for generative search standards — llms.txt generation and AI crawler diagnostics included.
Developer API ecosystem
Hit a batch ceiling? Connect CallAI Google SERP and LLM APIs with crypto and cards from $1 and Python/Node automation.
Need large-scale automation and AI generation?
CallAI offers Google SERP search engine access plus Claude 3.7 / DeepSeek R1 / GPT-4o. One wallet, $1 top-ups, multi-chain crypto and instant card checkout.
Webmaster tools FAQ
Do these webmaster & SEO tools require login or payment?
All tools are free and require no login. Text, slug, density, token estimates, HTTP status lookups, and code generators run locally in milliseconds. Robots and Sitemap tools only fetch the public files you specify.
Which checkers and utilities are included?
AI token cost calculator, HTTP status & API error lookup, OpenAI Base URL multi-language code generator, robots.txt & AI crawler diagnostics, sitemap validation, bulk domain extraction, template placeholder replace, URL slug generator, keyword density, text dedupe, llms.txt generator, Google SERP preview, and JSON-LD schema generator. Hub: https://callaiapi.com/en/tools
What is GEO (generative engine optimization)?
GEO targets ChatGPT Search, Perplexity, Claude, and similar AI search: allow GPTBot/ClaudeBot, publish llms.txt, and write citable facts with FAQ and JSON-LD. CallAI provides matching free tools plus Google SERP and LLM APIs.
How do I automate after a few manual checks?
The same CallAI API key works with Google SERP search data (SERP, keywords, backlinks) and Claude 3.7 / GPT-4o / DeepSeek R1. No foreign card — crypto or card from $1, pay as you go.
Is my data used for training or leaked?
Client-side tools do not upload your content. Robots/Sitemap checks only request the public robots.txt or sitemap.xml on the target site; results are cached briefly for cost control.