Free SEO & Web Tools
Explore 136 free SEO, PDF, image, text, calculator and developer tools in one fast workspace. Search by tool or task, run utilities privately in your browser, and get back to work without the clutter.
All Tools
136 toolsAds.txt Validator
Audit and generate advertising seller declarations.
AI Crawler Log Analyzer
Track GPTBot, ClaudeBot, and AI web crawlers.
Bulk URL Status Checker
Check many website URLs and status codes.
Color Contrast Checker
Check WCAG color contrast accessibility compliance.
CSP Analyzer
Build and validate secure CSP headers.
Follower Growth Analyzer
Track follower changes and unfollows privately.
HEIC to JPG Converter
Convert iPhone HEIC photos into JPG format.
Image Color Picker
Pick exact pixel colors from images.
Image Compressor
Shrink image file size without losing quality.
JavaScript Formatter & Minifier
Minify and format JavaScript code.
JSON Formatter
Format, validate, and beautify JSON code.
Merge PDF
Combine PDF files into one.
Meta Tag Generator
Create SEO title and description tags.
PDF to JPG
Save PDF pages as JPG images.
Percentage Calculator
Calculate percentages, additions, and differences easily.
PNG to WebP Converter
Convert PNG files into lightweight WebP images.
Profit Margin Calculator
Calculate gross margin and markup pricing.
Regex Tester
Test regular expressions with instant pattern matches.
ROI Calculator
Calculate return on investment and profits.
Security.txt Generator
Create security contact files for your domain.
SEO Page Auditor
Audit webpage SEO factors and technical tags.
SEO ROI Calculator
Estimate revenue gains from organic search rankings.
Server Log Analyzer
Analyze Apache and Nginx access logs privately.
SVG to PNG Converter
Turn vector SVG graphics into PNG images.
WebP to PNG Converter
Save WebP graphics as transparent PNG images.
Website Performance Audit
Audit page speed, caching, and server performance.
Word Counter
Count words, characters, and reading time.
Age Calculator
Calculate exact age in years and days.
AI Crawler Checker
Check if AI bots can crawl your site.
Broken Link Scanner
Scan web pages for dead links.
Case Converter
Change text to uppercase, lowercase, or title case.
Character Counter
Count characters and check social limits.
Color Palette Generator
Create harmonious color schemes for web designs.
Conversion Rate Calculator
Calculate conversion rates and visitor targets.
CSS Gradient Builder
Create multi-color CSS gradients visually.
CSS Minifier
Minify CSS stylesheets for faster page loads.
CSV to JSON Converter
Convert CSV spreadsheets into JSON format.
CSV Viewer & Editor
View, search, and sort CSV data.
Discount Calculator
Calculate sale prices and coupon savings.
DMARC Record Checker
Audit email DMARC authentication policies.
DNS Lookup
Look up A, MX, CNAME, and TXT records.
Freelance Rate Calculator
Calculate target hourly and daily client rates.
Hash Generator
Generate SHA-256, MD5, and cryptographic hashes.
HEIC to PNG Converter
Save Apple HEIC photos as PNG files.
Hourly to Salary Calculator
Convert hourly pay to annual and monthly salary.
Hours & Pay Calculator
Calculate work hours, breaks, and wages.
HTML Minifier
Compress HTML code to reduce file size.
HTTP Header Viewer
Inspect server HTTP response headers.
Image Alt Text Auditor
Find missing image alt tags on pages.
Image Cropper
Crop photos to exact aspect ratios.
Image Resizer
Change image dimensions by pixels or percentage.
Image to Base64
Convert images into Base64 data strings.
Indexability Checker
Check if Google can index your page.
JPG to PDF
Turn images into one PDF.
JPG to PNG Converter
Turn JPG photos into PNG format.
JPG to WebP Converter
Convert JPEG photos into modern WebP format.
JWT Token Decoder
Decode JWT tokens and payload claims.
Keyword Density Analyzer
Measure keyword frequency in your text.
LLMs.txt Generator
Create markdown files for AI models.
Markdown to HTML
Convert Markdown files into clean HTML.
Meta Tag Checker
Inspect meta tags and social preview tags.
Multi-Resolver DNS Checker
Compare DNS records across global resolvers.
Open Graph Previewer
Preview social sharing cards for links.
Password Generator
Create secure, randomized passwords in your browser.
Password Strength Checker
Test password entropy and crack times.
PDF Page Organizer
Move, rotate, or remove PDF pages.
PDF to PNG
Save PDF pages as PNG images.
PNG to JPG Converter
Convert PNG graphics into standard JPG images.
RDAP Domain Lookup
Query modern registration data for domains.
Redirect Rule Generator
Generate Apache and Nginx redirect rules.
ROAS Calculator
Calculate return on advertising campaign spend.
Robots.txt Tester
Test URL crawl access against robots rules.
Schema Markup Generator
Create structured JSON-LD data for websites.
SERP Snippet Preview
Preview Google search snippet appearances.
Sitemap Visualizer
Explore website structure as a visual tree.
Slug Formatter
Create search-friendly URL slugs from text.
SPF Record Validator
Validate email SPF authorization records.
Split PDF
Save selected pages as new PDFs.
SSL Health Checker
Check SSL certificate encryption and expiry.
URL Parser & Builder
Parse and construct complex URL components.
WebP to JPG Converter
Convert WebP images into universal JPG files.
Text Cleaner
Remove extra spaces, blank lines, and formatting.
AI Robots Policy Builder
Build crawler rules for AI scrapers.
AI Text Summarizer
Summarize long articles into concise bullet points.
Aspect Ratio Calculator
Calculate matching image and video dimensions.
AVIF to JPG Converter
Convert AVIF images into standard JPG format.
AVIF to PNG Converter
Convert AVIF images into high-quality PNG format.
Backlink Checker
Inspect website backlinks and referring domains.
Base64 Text Converter
Encode and decode text to Base64.
Break-Even ROAS Calculator
Find the minimum return needed to avoid ad losses.
Business Days Calculator
Count working days excluding weekends and holidays.
Canonical Tag Checker
Verify canonical links on live web pages.
CPA Calculator
Calculate cost per acquisition and customer costs.
CPC Calculator
Calculate cost per click and total ad spend.
CPM Calculator
Calculate cost per thousand ad impressions.
CTR Calculator
Calculate click-through rate percentage for campaigns.
Date Duration Calculator
Calculate exact days and weeks between dates.
DKIM Record Lookup
Verify DKIM public keys and selectors.
Domain Age Checker
Check domain registration age and history.
Domain Authority Checker
Check domain authority and search strength.
DPI & PPI Calculator
Convert pixels to print inches and DPI.
Email Permutator
Generate valid email address variations.
EXIF Viewer
Inspect camera settings and photo metadata.
Favicon Generator
Turn logos into web browser favicons.
Heading Structure Checker
Audit H1, H2, and H3 tag hierarchy.
Hreflang Tags Checker
Audit multi-language hreflang annotations.
HTML to Markdown
Convert HTML markup into Markdown code.
HTML to Text Converter
Strip HTML tags to extract clean text.
Image Converter
Convert images between JPG, PNG, and WebP.
JSON to CSV Converter
Convert JSON data into CSV spreadsheets.
Keyword Extractor
Extract key phrases and terms from text.
LLMs.txt Validator
Validate /llms.txt files for AI models.
Markup Calculator
Calculate retail markup percentage and selling price.
Monthly Budget Calculator
Plan monthly expenses with 50/30/20 budgeting.
Page Link Analyzer
Analyze internal and external page links.
PDF to Text
Copy text from a PDF.
Punycode Converter
Convert international domains to Punycode.
QR Code Generator
Create custom QR codes for links and text.
Reading Time Calculator
Estimate reading and speaking time for any text.
Robots.txt Generator
Create rules for search engine web crawlers.
Rotate PDF
Turn PDF pages the right way.
Sales Commission Calculator
Calculate commission earnings and tiered payouts.
Sales Tax Calculator
Calculate sales tax and order totals.
Schema Validator
Test JSON-LD structured data for errors.
Sellers.json Checker
Verify programmatic ad seller account identity.
Server Status Checker
Check server uptime and response latency.
Text Diff Checker
Compare two texts and highlight the differences.
Unix Time Converter
Convert Unix epochs into calendar dates.
URL Encoder & Decoder
Encode and decode special URL characters safely.
URL Redirect Checker
Test URL redirects and destination status.
UTM Campaign Builder
Build campaign tracking links for analytics.
UUID Generator
Generate random UUID v4 identifier strings.
VAT Calculator
Add or remove Value Added Tax easily.
XML Formatter
Format and beautify XML document trees.
XML Sitemap Checker
Audit XML sitemaps for broken URLs.
XML Sitemap Generator
Build an XML sitemap for search engines.
Browser-native processing eliminates remote network latency for image, text, and PDF workflows.
Client utilities run locally in your browser memory. Your confidential files are never saved to our servers.
Clean Apple-grade design with zero interstitial popups, countdown traps, or deceptive download buttons.
Transparent calculations adhering to RFC standards, W3C specifications, and Google Search Essentials.