Free online tools
Simple, free tools: Google search preview, QR codes, image compression, email signatures, a character counter, favicons, colour contrast and more. They run in your browser, no sign-up.
For business and marketing
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Website checker
Type an address and in seconds check your site's SEO, security, speed and social media preview.
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Google search preview
See how your page's title and description look in search results - and whether Google cuts them off.
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UTM link builder
Build links with UTM parameters to see in Google Analytics which posts, emails and flyers bring customers.
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QR code generator
A QR code with a link, Wi‑Fi details or a business card - in your colours, as PNG or SVG.
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Character counter
Count characters, words and sentences - and check whether your text fits a post, a page description or a text message.
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Email signature generator
A professional email signature with a photo or logo - ready to paste into Gmail and Outlook.
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Website and graphics
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Image compressor
Shrink photos to WebP or JPG without visible quality loss - dozens at once, without uploading them anywhere.
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Favicon generator
A website icon from a letter or your logo - the full set of favicon.ico, PNG icons and a manifest.
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Colour contrast checker
Check whether text on a background is readable by WCAG - and get the nearest colour that passes.
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For developers
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Text compare
Paste two versions of a text and see exactly what changed - line by line, with the changed words marked.
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JSON formatter
Format, minify and validate JSON, with the exact location of any error.
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Base64 encode and decode
Encode text or a file to Base64 or decode Base64 back - with full Unicode support and a URL-safe variant.
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JWT decoder
Read the header and payload of a JWT, check when it expires and verify an HMAC signature.
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Timestamp converter
Convert a Unix timestamp to a date and back - seconds, milliseconds and time zones.
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URL encode / decode
Encode text for a URL or decode “%C3%A9” back - and take an address apart into its parameters.
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UUID generator
Generate UUID v4 or v7 - one or hundreds at once - and find out what an existing ID is.
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Hash generator (SHA-256, MD5)
Compute the SHA-256, SHA-512, SHA-1 or MD5 checksum of text or a file - HMAC too.
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Regex tester
Test a regular expression live: highlighted matches, groups and replace - with ready-made patterns.
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Cron expressions
See when a cron job will run - a plain-English description and the next run times.
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