Can I use this site for free?
The currently published tools are available free of charge.
Mr. Tools
Practical tools you can use right away
Use browser-based tools for image conversion, text formatting, developer support, and more right away.
Image Tools
View allA set of image tools for everyday work, including conversion, compression, and cropping.
Image Background Removal
Remove image backgrounds in the browser and save the result as a PNG.
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Image Format Conversion
Convert PNG, JPEG, WebP, BMP, GIF, AVIF, HEIC, and SVG directly in the browser.
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Image Crop & Resize
Crop images, adjust dimensions, and save the result directly.
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Video Tools
View allA set of video tools for browser-friendly tasks such as format conversion and lightweight adjustments.
Text Tools
View allBrowser-based tools for notes, Markdown, and common encoding or text transformations.
Developer Tools
View allUtilities for frequent developer workflows such as JSON, Mermaid, and Base64 handling.
Base64 Encode / Decode
Convert text to Base64 or restore Base64 text back to readable text.
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URL Encode / Decode
URL-encode or decode text and query parameter values directly in the browser.
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JSON Formatter
Format broken JSON and check syntax errors immediately.
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HTML / CSS / JS Formatter
Format and minify HTML, CSS, and JavaScript, then copy the result directly.
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IP & Network Information Checker
Check global IP, connection status, browser, screen size, and device information in one place.
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Mermaid Preview
Type Mermaid syntax and preview flowcharts or sequence diagrams in the browser.
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Design Tools
View allUtilities for design work such as color picking, color conversion, and quick palette checks.
Generator Tools
View allCreate deliverables such as QR codes and favicons directly in the browser.
FAQ
Frequently asked questions
This section briefly covers what people often check before using the site.
Are files uploaded to a server?
Major tasks such as image conversion and cropping run in the browser. If a feature requires external communication, the screen will tell you.
Can I use it on a smartphone?
Yes. The interface is designed around a mobile-friendly vertical layout.
What kinds of tools are available?
There are tools for image conversion, text formatting, developer support, network checks, and more. You can choose from the one that matches what you want to do.