Free online tools for
SEO · Dev · YouTube
TontonTools is a free, ad-supported collection of 330+ online tools for SEO professionals, developers, YouTubers, content creators, and students.
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Featured tools
YouTube Thumbnail Downloader
Download any video's thumbnail — up to full HD resolution.
Color Converter
Convert colors between HEX, RGB, HSL and CMYK with a live preview.
Word Counter
Count words, characters, sentences and reading time instantly as you type.
Whois Domain Lookup
Look up a domain's registrar, dates and ownership details instantly.
Password Generator
Create strong, random, secure passwords — generated privately in your browser.
Age Calculator
Calculate exact age in years, months and days from any date of birth.
Case Converter
Convert text to UPPERCASE, lowercase, Title Case, Sentence case and more.
JSON Formatter
Beautify, indent and validate JSON instantly — right in your browser.
Meta Tag Generator
Generate clean, SEO-ready HTML meta tags for any web page.
Base64 Encode
Encode any text or data to Base64 instantly and privately.
QR Code Generator
Turn any link or text into a downloadable QR code in seconds.
Image Resizer
Resize images to exact dimensions — pixels, percentages, presets.
Text Tools
Word Counter
Count words, characters, sentences and reading time instantly as you type.
Character Counter
Count characters (with and without spaces), words and lines in real time.
Sentence Counter
Count sentences in any text instantly — plus words and averages.
Case Converter
Convert text to UPPERCASE, lowercase, Title Case, Sentence case and more.
Text to Slug Converter
Turn any title into a clean, SEO-friendly URL slug in one click.
Lorem Ipsum Generator
Generate Lorem Ipsum placeholder text by paragraphs, sentences or words.
YouTube Tools
YouTube Thumbnail Downloader
Download any video's thumbnail — up to full HD resolution.
YouTube Tag Extractor
Extract the tags from any YouTube video — see what competitors target.
YouTube Tag Generator
Generate YouTube tag sets from your keywords — variants and long-tails included.
YouTube Hashtag Extractor
Extract hashtags from any YouTube video's title and description.
YouTube Hashtag Generator
Generate YouTube hashtags from keywords — niche-fit, correctly formatted.
YouTube Title Extractor
Extract the exact title of any YouTube video — clean, copyable text.
SEO Tools
Meta Tag Generator
Generate clean, SEO-ready HTML meta tags for any web page.
Meta Tag Analyzer
Analyze any page's meta tags — title, description, robots, OG and more.
Open Graph Checker
Check a page's Open Graph tags — see the link preview before you share.
Open Graph Generator
Generate Open Graph meta tags — perfect share previews, copy-paste ready.
Twitter Card Generator
Generate Twitter Card meta tags — rich X previews with large images.
Keyword Density Checker
Check keyword density free — count and percentage for every word and phrase.
Domain & IP Tools
Domain Age Checker
Check when a domain was registered — age, from the WHOIS record.
Domain to IP Converter
Resolve a domain to its IP address — see where a site actually lives.
Whois Domain Lookup
Look up a domain's registrar, dates and ownership details instantly.
DNS Records Checker
Check all DNS records for a domain — A, MX, TXT, CNAME, NS in one look.
Hosting Checker
Find out who hosts any website — provider behind the IP.
IP Address Lookup
Find the location, ISP and details of any IP address instantly.
Website Management
HTTP Status Code Checker
Check any URL's HTTP status code — 200, 301, 404, 500 and why it matters.
Redirect Checker
Check any URL's redirect chain — every hop, status code and final destination.
URL Encoder
Percent-encode text and URLs so special characters travel safely.
URL Decoder
Decode URL-encoded text — turn %20 and %3D back into readable characters.
URL Parser
Parse a URL into its parts — scheme, host, path, query, fragment.
URL Rewriting Tool
Generate URL rewrite rules — clean, SEO-friendly URLs via .htaccess.
Web Development
HTML Encoder
Encode HTML entities — make text safe to display inside HTML.
HTML Decoder
Decode HTML entities — turn < and ' back into readable text.
HTML Beautifier
Beautify HTML — proper indentation for minified or messy markup.
HTML Minifier
Minify HTML online — collapse whitespace and comments, same rendering.
CSS Beautifier
Beautify CSS — expand minified styles into readable rules.
CSS Minifier
Minify CSS online — strip whitespace and comments, keep styles identical.
Image Tools
Image Resizer
Resize images to exact dimensions — pixels, percentages, presets.
Image Cropper
Crop images online — trim to exactly the frame you want.
Image Converter
Convert images between formats — JPG, PNG, WebP and more, one tool.
Image Compressor
Compress images — dramatically smaller files, visually identical.
Image to Base64
Convert images to Base64 — embed pictures directly in code and CSS.
Base64 to Image
Decode Base64 back into an image — preview and download the file.
Calculators
AdSense Calculator
Estimate AdSense earnings from page views, CTR and CPC — daily to yearly.
YouTube Earnings Calculator
Estimate YouTube ad earnings from views and RPM — per video or channel.
Age Calculator
Calculate exact age in years, months and days from any date of birth.
Percentage Calculator
Calculate percentages three ways: X% of Y, X as a % of Y, and % change.
Average Calculator
Calculate the average (mean), median and more from any list of numbers.
Discount Calculator
Calculate sale prices and savings — percent off, final price, instantly.
Unit Converters
Length Converter
Convert meters, feet, inches, miles, kilometers and more with exact results.
Area Converter
Convert square meters, square feet, acres, hectares and more in real time.
Weight Converter
Convert kilograms, pounds, ounces, stones, grams and tons instantly.
Volume Converter
Convert liters, milliliters, gallons, cups, pints and fluid ounces instantly.
Temperature Converter
Convert Celsius, Fahrenheit, Kelvin and Rankine with exact formulas.
Speed Converter
Convert km/h, mph, m/s, knots and ft/s for driving, running and flying.
Binary & Number Tools
Text to Binary
Turn any text into binary code — each character becomes its 8-bit byte.
Binary to Text
Decode binary code back into readable text — paste 1s and 0s, get words.
Decimal to Binary
Convert decimal numbers to binary — any size, with exact BigInt math.
Binary to Decimal
Convert binary numbers to decimal — instant, exact, any length.
HEX to Binary
Convert hexadecimal to binary — every hex digit expands to exactly 4 bits.
Binary to HEX
Convert binary to hexadecimal — compact hex from long bit strings.
AI Writing Tools
AI Article Writer
Draft full articles with AI — a first draft from your topic in seconds.
AI Article Rewriter
Rewrite content with AI — rephrase text in fresh words and structure.
AI Blog Post Outline Generator
Generate blog post outlines with AI — structure before you write.
AI Meta Description Generator
Generate meta descriptions with AI — click-worthy, within the limit.
AI Title Tag Generator
Generate SEO title tags with AI — keyword-rich, click-worthy, sized right.
AI Product Description Writer
Write product descriptions with AI — persuasive copy that sells.
Social Media Tools
Facebook ID Finder
Find a Facebook profile or page ID — the numeric ID behind a URL.
Instagram Hashtag Generator
Generate Instagram hashtags — mix of broad, niche and specific tags.
Instagram Bio Generator
Generate Instagram bios — punchy 150-character profiles that convert.
Twitter Character Counter
Count characters for X/Twitter — live count against the limits.
Twitter Thread Formatter
Format long text into an X thread — split into numbered tweets.
LinkedIn Post Formatter
Format LinkedIn posts — line breaks and structure that survive the feed.
Password & Security
Password Generator
Create strong, random, secure passwords — generated privately in your browser.
Password Strength Checker
Test password strength — see how long it would take to crack.
MD5 Generator
Generate a 32-character MD5 hash from any text instantly.
SHA-1 Generator
Generate SHA-1 hashes — for legacy checksums, not for security.
SHA-256 Generator
Generate a secure SHA-256 hash from any text, instantly and privately.
SHA-512 Generator
Generate SHA-512 hashes — the 512-bit member of the SHA-2 family.
Miscellaneous Tools
QR Code Generator
Turn any link or text into a downloadable QR code in seconds.
QR Code Decoder
Decode QR codes from an image — read what any QR contains.
Color Converter
Convert colors between HEX, RGB, HSL and CMYK with a live preview.
HEX to RGB
Convert hex colors to RGB — #FF6600 to rgb(255, 102, 0).
RGB to HEX
Convert RGB colors to hex — rgb(255, 102, 0) to #FF6600.
What Is My Browser
See what browser you're using — version, engine and details.