Small SEO Tools

35 free online SEO tools that run in your browser

Check keyword density, build meta tags, compress images, format code and clean up text. No sign up, no upload, no limits on how often you use them.

Text Analysis Tools SEO Tools Web Developer Tools Generators and Security Image Tools
100% free, no account Runs in your browser Nothing uploaded to a server
Handpicked

Most popular tools

View all 35 tools
Word CounterWords, characters and reading time Open tool Keyword Density CheckerOne, two and three word phrases Open tool Meta Tag GeneratorA complete head block in seconds Open tool JSON FormatterBeautify, minify and validate JSON Open tool Image CompressorCut file size with a quality dial Open tool Password GeneratorStrong passwords with entropy score Open tool SERP Snippet PreviewSee your result before Google does Open tool Robots.txt GeneratorCrawl rules for every major bot Open tool

Text Analysis Tools

Count, clean, convert and compare text without leaving the browser.

10 tools
Word CounterWords, characters and reading time Character CounterLive limits for titles and posts Case ConverterUpper, lower, title and sentence case Text to SlugClean URL slugs from any heading Reverse TextFlip letters, words or whole lines Remove Line BreaksStrip hard returns from pasted text Duplicate Line RemoverKeep only unique lines in a list Find and Replace TextBulk replace with regex support Text CompareLine by line difference checker Lorem Ipsum GeneratorPlaceholder copy for mockups

SEO Tools

Generate the tags, files and tracking URLs that search engines read.

10 tools
Keyword Density CheckerOne, two and three word phrases Meta Tag GeneratorA complete head block in seconds Open Graph GeneratorFacebook and LinkedIn share tags Twitter Card GeneratorSummary and large image cards SERP Snippet PreviewSee your result before Google does Robots.txt GeneratorCrawl rules for every major bot XML Sitemap GeneratorTurn a URL list into sitemap.xml UTM BuilderCampaign URLs that track properly Htaccess Redirect Generator301 rules without the guesswork Hreflang Tag GeneratorMulti language and region tags

Web Developer Tools

Format, minify and encode the code that runs your pages.

6 tools
JSON FormatterBeautify, minify and validate JSON HTML MinifierShrink markup without breaking it CSS MinifierSmaller stylesheets, same output Base64 Encoder DecoderUTF-8 safe encode and decode URL Encoder DecoderPercent encoding and query parser HTML Encoder DecoderEntities in both directions

Generators and Security

Passwords, hashes and identifiers created in your own browser.

5 tools
Password GeneratorStrong passwords with entropy score MD5 GeneratorClassic checksum hash of any text SHA-256 GeneratorSHA-1, 256, 384 and 512 hashes UUID GeneratorVersion 4 IDs in bulk Color ConverterHEX, RGB, HSL and contrast check

Image Tools

Resize, compress and convert pictures without uploading them anywhere.

4 tools
Image to Base64Data URI, img tag and CSS rule Image ResizerExact pixels or a percentage Image CompressorCut file size with a quality dial Image Format ConverterJPG, PNG and WebP both ways
Your data stays with youText and images are processed by JavaScript on your own device. Nothing is uploaded or stored.
Results in an instantEvery tool is a single lightweight page with no frameworks, so it opens fast even on a weak connection.
Free without an accountNo registration, no daily quota and no watermarks on anything you download.
Works on any deviceThe layout adapts to phones and tablets, so you can fix a meta tag from anywhere.