100% Free & Client-Side

All-in-One
Online Toolkit

Powerful tools for PDFs, images, and more — all running directly in your browser. No uploads to servers. No sign-ups. Completely private.

10+ Free Tools
100% Client-Side
0 Sign-ups
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Tools

Everything You Need, Right Here

No installation, no account required. All tools run entirely in your browser — your files never leave your device.

PDF Merge

Combine multiple PDF files into a single document instantly. Drag, drop, and reorder with ease.

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PDF to Images

Convert each page of a PDF into high-quality PNG images rendered directly in your browser.

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Image Grayscale / Sepia

Apply beautiful grayscale or vintage sepia filters to your images with adjustable intensity.

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Image Rotate & Flip

Rotate images by any degree and flip them horizontally or vertically with a single click.

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Favicon Generator

Upload an image and generate favicon files in all standard sizes (16×16 to 512×512) ready to download.

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EXIF Metadata Viewer

Read hidden metadata from your photos: camera model, GPS location, date, exposure, and much more.

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Image Watermark Tool

Add text or image watermarks to your photos with full control over position, size, and opacity.

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Background Changer

Replace or remove the background of transparent PNG images. Choose any solid color or gradient.

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HTML to Image

Screenshot any HTML/CSS code as a PNG image using the canvas API. Great for social cards and previews.

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Pixel to REM Converter

Quickly convert pixel values to REM units and vice versa. Set a custom base font size for accuracy.

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🔒

100% Private

Files never leave your browser — no server uploads

⚡

Lightning Fast

Instant results powered by modern browser APIs

💯

Always Free

No subscriptions, no watermarks, no limits

📱

Mobile Friendly

Works perfectly on phones, tablets, and desktops

FAQ

Frequently Asked Questions

Everything you need to know about MultiTool and how it works.

Are my files uploaded to a server?
No! All processing happens entirely in your browser using JavaScript and the HTML5 Canvas API. Your files are never sent to any server, ensuring complete privacy and security.
Is MultiTool really free?
Yes, completely free! There are no hidden fees, no premium tiers, and no sign-up required. All tools are accessible without creating an account.
What file formats are supported?
PDF tools support PDF files. Image tools support JPEG, PNG, GIF, WEBP, and BMP formats. The favicon generator works best with square images in PNG or JPEG format.
Is there a file size limit?
Since processing happens in your browser, the limit depends on your device's available memory. For most use cases, files up to 100MB should work fine. Very large PDFs (200+ pages) may be slow on older devices.
Does MultiTool work on mobile devices?
Yes! MultiTool is fully responsive and designed to work on smartphones, tablets, and desktop computers. All tools are touch-friendly and optimized for mobile browsers.
Can I use MultiTool offline?
Most tools require the page to be loaded initially (which needs internet), but once loaded, some tools can process files without an active internet connection since all logic runs client-side.
How does the EXIF metadata viewer work?
It reads the binary data of your image file directly in the browser and parses the EXIF header to extract metadata like camera model, GPS coordinates, shutter speed, ISO, and more. This information is stored inside JPEG files by most cameras and smartphones.
What library is used for PDF merging?
PDF merging uses PDF-LIB, a powerful JavaScript library for PDF manipulation. PDF rendering and page extraction use PDF.js by Mozilla, which renders PDF pages onto an HTML5 Canvas element.