MultiPixel Documentation

All-in-One Media Conversion Suite with Batch Processing

Introduction

MultiPixel is a powerful, client-side media conversion tool that allows users to convert, optimize, and enhance multiple images simultaneously. With support for 10+ image formats, advanced batch processing capabilities, and a privacy-focused approach (all processing happens in the browser), MultiPixel is the perfect solution for photographers, designers, and content creators.

Privacy First: All image processing happens directly in your browser - we do not upload any images to our servers. Your files never leave your computer.

Why Choose MultiPixel?

Lightning Fast Processing

Our optimized conversion engine can process hundreds of images in seconds with AI acceleration and Web Workers for parallel processing.

Advanced Controls

Fine-tune every aspect of your images with our comprehensive adjustment options including quality, dimensions, filters, and more.

Wide Format Support

Convert between all popular image formats including JPG, PNG, WEBP, GIF, SVG, HEIC, and even RAW formats.

Key Features

Explore the powerful capabilities of MultiPixel

Core Features

Conversion
Optimization
Enhancement

Batch Conversion

MultiPixel supports conversion between all these formats:

Format Description Features
JPEG (JPG) Lossy compression format Adjustable quality, progressive loading
PNG Lossless format with transparency Alpha channel, lossless compression
WEBP Modern format by Google Lossy/lossless, smaller file sizes
GIF Animated images Animation support, transparency
SVG Vector graphics Scalable, small file size

Image Optimization

MultiPixel includes advanced optimization features to reduce file sizes while maintaining quality:

Intelligent Compression

Our algorithm analyzes each image to apply the optimal compression settings, reducing file sizes by up to 80% without visible quality loss.

Auto Enhancement

The built-in AI enhancement automatically improves brightness, contrast, and sharpness for professional-looking results.

Image Enhancement

Transform your images with powerful enhancement tools:

  • Filters: Apply grayscale, sepia, vintage, invert, blur, and sharpen effects
  • Resizing: Scale by percentage or exact dimensions with aspect ratio locking
  • Rotation: Rotate images by 90°, 180°, or 270° with high quality
  • Color Space: Convert between RGB, CMYK, and grayscale color spaces

Quick Start

Get started with MultiPixel in minutes

Quick Start Guide

Basic Conversion Workflow

Upload Images

Click "Select Images" or drag & drop files into the upload area. You can select multiple files at once (up to 10 files in the free version).

Choose Output Format

Select your desired output format from the dropdown menu. Options include JPG, PNG, WEBP, GIF, and more.

Adjust Settings (Optional)

Customize quality, dimensions, filters, or other options as needed. Use the preview to see changes in real-time.

Process Images

Click the "Process Images" button to start conversion. The progress will be shown for each file.

Download Results

After processing, download individual files or get all images in a ZIP archive with one click.

Pro Tip: Use the batch rename feature to automatically organize your converted files with consistent naming.

Interface Overview

Learn about MultiPixel's user interface components

UI Components

Main Interface Elements

Upload Area

The drag-and-drop upload zone supports multiple file selection and shows supported formats. Files can be added by clicking or dragging.

Conversion Options

This panel contains all conversion settings organized into logical sections: format selection, resizing, filters, and quality adjustment.

File Table

Displays all uploaded files with thumbnails, original info, and processing status. Files can be previewed, removed, or downloaded individually.

Preview Panel

Shows side-by-side comparison of original and processed versions with detailed statistics about the conversion results.

Advanced Options

The "Advanced Options" section (accessible by clicking the gear icon) provides additional professional tools:

  • Color Space Conversion: Convert between RGB, CMYK, and grayscale color spaces
  • DPI Resolution: Set the DPI (dots per inch) for print-ready images
  • Watermarking: Add text watermarks with customizable position, size, and colors
  • EXIF Data: Choose to preserve or remove EXIF metadata from images

Converting Images

Detailed guide to image conversion options

Conversion Settings

Output Format Options

MultiPixel supports conversion between these formats with these specific options:

Format Options Best For
JPEG (JPG) Quality (50-100%), Progressive loading, Baseline optimization Photographs, web images
PNG Compression level (0-9), Transparency, Interlacing Graphics with transparency, lossless quality
WEBP Lossy/lossless mode, Quality, Alpha channel Modern web use, smallest file sizes
GIF Color reduction (32-256 colors), Dithering Simple animations, small graphics

Quality Settings

The quality slider controls the balance between file size and image quality:

  • 90-100%: Best quality, larger files (recommended for print)
  • 70-90%: Good balance (recommended for web)
  • 50-70%: Smaller files, noticeable quality loss
Pro Tip: Use the "Optimize for Web" option in Advanced Settings to automatically apply the best compression settings for web use.

Batch Processing

Efficiently process multiple images at once

Batch Operations

Batch Renaming

MultiPixel includes powerful batch renaming capabilities using pattern templates:

photo_{num}.jpg → photo_01.jpg, photo_02.jpg, etc. product-{date}.png → product-2023-06-14.png image_{time}.webp → image_14-30-22.webp {original}_converted → landscape_converted.jpg

Available placeholders:

Placeholder Description Example Output
{num} Sequence number (01, 02, etc.) 01, 02, ..., 10
{date} Current date in YYYY-MM-DD format 2023-06-14
{time} Current time in HH-MM-SS format 14-30-22
{original} Original filename without extension landscape (from landscape.jpg)

Batch Download

After processing multiple images, you can:

  • Download individually: Click the download icon next to each file
  • Download as ZIP: Get all files in a single compressed archive
  • Share directly: Use the Share button to send via email or social media (browser-dependent)

Advanced Features

Professional tools for power users

Advanced Tools

Resizing Options

MultiPixel offers three resizing methods:

Percentage Scaling

Scale images by a percentage (e.g., reduce to 50% of original size). Aspect ratio is maintained automatically.

Exact Dimensions

Set specific width and height in pixels. Choose whether to maintain aspect ratio or stretch to exact dimensions.

Preset Sizes

Quickly resize to common dimensions like Social Media (1200x630), Thumbnail (150x150), or Mobile (640x960).

Image Filters

Apply professional-grade filters to all images in your batch:

Filter Description Use Case
Grayscale Convert to black and white Classic photography, artistic effects
Sepia Vintage brown tone Antique/old photo effect
Vintage Combination of sepia and vignette Retro styling
Invert Reverse all colors Creative effects, negative images
Blur Soft focus effect Backgrounds, artistic effects
Sharpen Enhance edge contrast Improve slightly blurry images

Watermarking

Protect your images with customizable watermarks

Watermark Features

MultiPixel's watermarking tool allows you to add text watermarks to all images in your batch with consistent positioning and styling.

Watermark Options

Text & Appearance

Customize the watermark text, font size (10-50px), text color, and background color with transparency support.

Positioning

Choose from 5 preset positions: Top Left, Top Right, Bottom Left, Bottom Right, and Center.

Live Preview

The watermark preview updates in real-time as you adjust settings, showing exactly how it will appear on your images.

Watermark Best Practices

Visibility vs. Intrusiveness: Find the right balance - your watermark should be visible enough to deter unauthorized use but not so prominent that it ruins the image.
  • Use semi-transparent backgrounds (e.g., rgba(0,0,0,0.5)) for better readability on varied images
  • Position in corners where it's less likely to be cropped out
  • Include your website URL or copyright symbol (©) for maximum protection

Troubleshooting

Solve common issues and errors

Common Issues

General Problems

Images aren't uploading properly

Possible causes:

  • JavaScript errors on the page
  • Files are too large (browser memory limits)

Solutions:

  • Update your browser to the latest version
  • Check browser console for errors (F12)
  • Try with smaller files first
Conversion is very slow

Image processing is CPU-intensive, especially for large images or batches. For better performance:

  • Process fewer images at once (5-10 instead of 50+)
  • Reduce output dimensions for very large images
  • Use Chrome or Edge for better performance
  • Close other CPU-intensive applications

Format-Specific Issues

HEIC/RAW files not working

HEIC and RAW formats require browser support and may not work in all browsers:

  • Chrome/Edge: Full support with proper EXIF data
  • Firefox: Partial support (may lose metadata)
  • Safari: HEIC works but RAW formats may fail

For best results, use Chrome or Edge when working with HEIC/RAW files.

Animated GIFs lose animation

When converting animated GIFs to other formats (except WEBP), the animation will be lost as most formats don't support animation. Options:

  • Convert to WEBP (supports animation)
  • Extract individual frames first
  • Keep original format if animation is needed

Getting Support

If you encounter issues not covered here:

Support Channels: Contact our support team via email support@multipixel.io. Please include:
  • Browser name and version
  • Detailed description of the issue
  • Steps to reproduce the problem
  • Screenshots if applicable

Frequently Asked Questions

Quick answers to common questions

FAQ

Is there a file size limit for images?

MultiPixel can handle large images, but browser memory limitations apply. As a guideline:

  • Recommended max: 10MP (e.g., 3000x3000px)
  • Absolute max: 20MP (may cause browser crashes)
  • Batch limit: 10 files at once (free version)

For very large images, resize them first before processing.

Does MultiPixel work offline?

Yes! MultiPixel is a client-side application that works completely in your browser. Once loaded, it doesn't require an internet connection to process images. The only internet requirement is for the initial page load and any external libraries (which can be downloaded for full offline use).

Can I increase the batch limit beyond 10 files?

The free version is limited to 10 files at once for performance reasons. To increase this limit:

  1. Purchase the PRO version (contact for details)
Warning: Processing many large files may crash the browser tab due to memory limitations.

Changelog

Version history and updates

Version History

v1.1.0 June 2025
  • Changelog Will appear here

Support

Get help and resources

Support Options

Documentation Resources

Before contacting support, please check these resources:

  • This documentation: Covers all major features and common issues
  • Video tutorials: Available on our YouTube channel
  • Community forum: Discuss with other users on Reddit comments

Contacting Support

For direct assistance, please contact us through:

Email Support

support@multipixel.io (response within 7-12 hours)

For faster support: Include your browser/OS details, and clear steps to reproduce any issues.

Terms of Service

Terms of Service

Last updated: July 20, 2025

1. Acceptance of Terms

By accessing or using Multipixel.io (“Service”), you agree to be bound by these Terms of Service (“Terms”). If you do not agree, do not use the Service.

2. Changes to Terms

We may update these Terms from time to time. Your continued use of the Service after changes are posted constitutes acceptance of the revised Terms.

3. Use of Service

  • You must be at least 13 years old to use the Service.
  • You agree not to misuse our tools (e.g. no malware distribution, no unauthorized scraping).
  • All content you upload must comply with applicable laws and our Privacy Policy.

4. Account Registration

Creating an account is optional for many features. You are responsible for maintaining the security of your account credentials.

5. Intellectual Property

All content, logos, and software on this site are owned or licensed by Multipixel.io. You may not reproduce or distribute our materials without permission.

6. Termination

We may suspend or terminate your access for violations of these Terms or for any reason, without prior notice.

7. Disclaimer of Warranties

The Service is provided “as is” without warranties of any kind, either expressed or implied. We do not guarantee availability, accuracy, or reliability.

8. Limitation of Liability

In no event shall Multipixel.io be liable for any indirect, incidental, special, or consequential damages arising out of your use of the Service.

9. Governing Law

These Terms are governed by the laws of the State of New York, without regard to conflict of laws principles.

10. Contact Us

If you have any questions about these Terms, please contact us at legal@multipixel.io.

Privacy Policy

Privacy Policy

Last updated: July 20, 2025

1. Information We Collect

  • Personal Data: Email address, username (if you register).
  • Usage Data: IP address, browser type, pages visited, and interaction timestamps.
  • Cookies: Small data files to remember preferences and improve your experience.

2. How We Use Your Information

  • To provide, maintain, and improve our services.
  • To communicate updates, respond to inquiries, and send technical notices.
  • To analyze usage trends and enhance user experience.

3. Sharing and Disclosure

We do not sell your personal data. We may share data with:

  • Service providers who perform services on our behalf (e.g., hosting, analytics).
  • Law enforcement or regulators when required by law.

4. Third Party Services

We use third party analytics (e.g., Google Analytics) that may collect data according to their own policies.

5. Cookies & Tracking

You can control cookies via your browser settings. Blocking cookies may affect functionality.

6. Data Security

We implement reasonable security measures to protect your information but cannot guarantee absolute security.

7. Children’s Privacy

Our service is not directed to children under 13. We do not knowingly collect data from children.

8. Changes to This Policy

We may update this policy. We will notify you by posting the new policy on this page with a updated “Last updated” date.

9. Your Rights

You may request access to, correction, or deletion of your personal data by emailing privacy@multipixel.io.

10. Contact Us

For questions about this Privacy Policy, contact us at privacy@multipixel.io.