Software Alternatives, Accelerators & Startups

ImgSmaller VS Optimizilla

Compare ImgSmaller VS Optimizilla and see what are their differences

ImgSmaller logo ImgSmaller

Compress, crop, and resize images online โ€” and convert to WEBP. Precise 5 KBโ€“2MB output. Fast, secure, and free.

Optimizilla logo Optimizilla

Optimizilla is an online image optimizer uses a smart combination of best optimization and lossy compression algorithms in order to shrink JPEG and PNG pictures to the minimum possible size while keeping the required level of quality.
Not present
  • Optimizilla Landing page
    Landing page //
    2023-02-06

ImgSmaller

Release Date
2025 September
Startup details
Country
India
State
West Bengal
City
Nalhati
Founder(s)
Subarnadip Pal
Employees
1 - 9

ImgSmaller features and specs

  • Zero-upload Mode
    In-browser compression, no file ever leaves your device
  • Unlimited Uploads (Zero-Upload Mode)
    Thereโ€™s no limit to how many images you can compress in zero-upload mode.
  • Server-upload Mode
    Available for API users, older browsers, and automation
  • Target Size Selection
    Choose a desired file size before compression โ€” from 1KB to 2MB โ€” for precise output control.
  • Before & After Preview
    See a real-time side-by-side comparison of your original vs. compressed image โ€” with file size and quality differences.
  • Aspect Ratio Lock & Adjustment
    Maintain or change the aspect ratio of your image before compressing.
  • Resize by Width & Height
    Set custom dimensions (in pixels) to resize your image while compressing.
  • Change Output Format
    Select your preferred output extension after compression: .jpg, .png, .webp, etc.
  • Crop Image Before Compression
    Use the built-in crop tool to trim your image exactly how you want it โ€” before applying compression.
  • Developer-Friendly REST API
    Easily integrate compression into your own apps with API access: Upload โ†’ Compress โ†’ Download

Optimizilla features and specs

  • Free to Use
    Optimizilla is completely free, making it accessible for users who need to compress images without incurring additional costs.
  • Batch Processing
    Allows users to upload and compress up to 20 images at a time, streamlining the workflow for those with multiple images.
  • High Compression Quality
    Provides a good balance between image quality and file size, ensuring reduced file sizes without significant loss in image clarity.
  • User-Friendly Interface
    Features an easy-to-use interface that makes uploading and downloading images straightforward, even for users with limited technical skills.
  • Cross-Platform Compatibility
    Being a web-based tool, it can be accessed from any device with internet connectivity and a web browser, regardless of the operating system.
  • Custom Compression Settings
    Offers sliders to adjust the level of compression, enabling users to select the desired balance between quality and file size.

Possible disadvantages of Optimizilla

  • Internet Dependent
    Requires a stable internet connection to function, which might be a limitation for users with poor connectivity or those who prefer offline tools.
  • File Size Limitations
    May not support very large files, restricting its use for high-resolution images exceeding the platform's limits.
  • Limited File Formats
    Primarily supports common formats like JPEG and PNG, which may not cater to users who need to compress less common image formats.
  • Generic Interface
    The simple interface, while easy to navigate, lacks advanced features that power users might require for more comprehensive image optimization.
  • Potential Privacy Concerns
    Uploads images to a server for processing, which could be a concern for users who prioritize data privacy and security.

ImgSmaller videos

Convert & Compress Images Easily

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Optimizilla videos

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Category Popularity

0-100% (relative to ImgSmaller and Optimizilla)
Image Cropper
100 100%
0% 0
Image Optimisation
21 21%
79% 79
Photos & Graphics
27 27%
73% 73
Image Editing
0 0%
100% 100

Questions and Answers

As answered by people managing ImgSmaller and Optimizilla.

Why should a person choose your product over its competitors?

ImgSmaller's answer

  1. Privacy First โ€“ Zero Upload, 100% In-Browser Most image compressors upload your files to their servers, risking privacy and slower speeds. ImgSmaller is different โ€” it runs entirely in your browser. ๐Ÿ›ก๏ธ Your images never leave your device. No uploads, no tracking, no data storage.

  2. Faster Than Server-Based Tools Since all compression happens on your device, there's no wait time, no internet dependency, and no server delay. ๐Ÿš€ Instant results โ€” especially useful when compressing in bulk or with large images.

  3. Unlimited Bulk Compression โ€“ Free & No Login ImgSmaller allows you to: Compress unlimited images at once Without creating an account Without hitting any daily limits ๐Ÿ’ฅ Most competitors restrict bulk uploads, or lock them behind paywalls. ImgSmaller doesnโ€™t.

  4. Advanced Controls for Power Users Unlike basic tools that only โ€œauto compress,โ€ ImgSmaller gives you full control: ๐ŸŽ›๏ธ Target file size (e.g., 200KB, 2MB) ๐Ÿ“ Resize (width/height or aspect ratio) โœ‚๏ธ Crop before compressing ๐Ÿ”„ Choose output format (.jpg, .png, .webp) ๐Ÿง  Compress exactly how you want โ€” without needing Photoshop or separate tools.

  5. Before & After Preview Many tools compress images blindly. ImgSmaller gives you a visual preview of quality vs. file size โ€” before you download. ๐Ÿ‘€ No surprises. You see exactly what you're getting.

  6. Flexible Compression Modes ๐Ÿง  In-browser mode: Fast, private, offline-capable ๐Ÿ”— Server-based mode: For API users, unsupported browsers, and automation โš™๏ธ Choose what works best for your workflow.

  7. Developer API (With Server Compression) Competitors like TinyPNG offer APIs, but with strict limits or higher pricing. ImgSmaller gives you: Simple REST API Adjustable compression settings No complex setup ๐Ÿ‘จโ€๐Ÿ’ป Ideal for SaaS apps, WordPress plugins, or custom image workflows.

  8. Truly Free with No Hidden Charges No login required No watermark on output No freemium trap ๐Ÿ”“ Free forever โ€” just open and compress.

  9. Designed for All Users Bloggers Developers Designers Ecommerce sellers Social media managers It works beautifully on desktop, mobile, or tablet with responsive design.

Which are the primary technologies used for building your product?

ImgSmaller's answer

  1. WebAssembly (Wasm) Executes core image compression algorithms directly in the browser, enabling zero-upload processing. No server dependency, instant performance, and full client-side privacy.

  2. JavaScript + HTML5 Canvas Used to: Read and preview images Handle crop, resize, aspect ratio, and file format conversion Interface with Wasm modules and Canvas for compression logic Delivers a fast, interactive, in-browser experience.

  3. CSS3 + Tailwind CSS Provides a clean, modern, and responsive UI with support for: Dark mode Mobile-first layout Utility-first styling Designed for simplicity, speed, and accessibility.

  4. Laravel (Backend Framework) Laravel powers the optional server-based upload mode, REST API, and management features. Laravel is used for: Secure API handling (token-based) Image compression (via server tools like Sharp, ImageMagick, or GD) File auto-deletion for privacy Admin dashboard (if applicable) Rate limiting and user-level access control (API users) Laravel brings reliability, scalability, and developer-friendly structure to ImgSmaller's backend.

  5. Server-Side Image Processing When using server-upload mode (for: Older browsers Headless automation Developer API use cases), Laravel integrates with: Intervention Image, Spatie Image, or CLI tools like ImageMagick or cwebp Temporary file storage (auto-expired for security) Queueing jobs (via Laravel Queues for bulk tasks) This hybrid setup gives ImgSmaller both zero-upload privacy and server flexibility.

  6. Security & Privacy Architecture Laravel handles CSRF, XSS, and input validation HTTPS across all endpoints API authentication using Laravel Sanctum or Passport All temporary uploads deleted after processing Privacy-first from frontend to backend.

  7. REST API for Developers Laravelโ€™s powerful routing and controller system makes the API clean and secure, offering: Upload endpoint Compression config (target size, output format, etc.) JSON responses with output file or base64 Allows seamless integration with other tools, plugins, or SaaS platforms.

What makes your product unique?

ImgSmaller's answer

Zero Upload โ€“ 100% In-Browser Compression

Unlike most image compressors that send your files to their server, ImgSmaller processes all images directly in your browser using WebAssembly and client-side JavaScript. Your images never leave your device. No upload, no storage, no tracking.

Optional Server Upload Mode for API & Compatibility

While the default mode is in-browser, ImgSmaller also offers a secure server-side compression mode for: Developers using the API Unsupported or older browsers Automated scripts or headless browsers This flexible approach ensures compatibility across different use cases and environments.

High-Quality Results with Smart Compression

ImgSmaller uses smart algorithms that reduce file size without losing visible quality. Perfect for photographers, bloggers, and developers who care about visuals.

Supports All Popular Formats

JPEG, JPG, PNG, WebP, AVIF Seamless compression for all your web and mobile image needs.

Privacy-First Tool

No uploads No accounts No watermarks No tracking scripts Your files, your control. Forever.

Developer API (Optional)

For users who prefer automation, ImgSmaller also offers a REST API (optional) where compression is handled via server with full security and rate limits. Great for SaaS tools, image-heavy platforms, and ecommerce.

How would you describe your primary audience?

ImgSmaller's answer

  1. Web Developers & UI Designers Need fast-loading websites and apps Optimize images for performance and Core Web Vitals Prefer privacy-focused, code-friendly tools May integrate with your API for automated workflows They value precision, control (resize, crop, target size), and zero-upload privacy.

  2. Bloggers, Writers & Content Creators Regularly upload images to WordPress, Medium, Ghost, etc. Need smaller image sizes for SEO and faster page load Donโ€™t want to lose image quality Prefer tools that are simple, free, and no-login They love the before/after preview, ease of use, and no watermark or branding.

  3. Ecommerce Sellers & Product Managers Upload lots of product images on platforms like Shopify, WooCommerce, Amazon, etc. Need to resize, crop, and compress images for faster product pages Often deal with bulk uploads Bulk compression, custom file size, and no loss of quality are essential to them.

  4. Photographers & Graphic Designers Work with high-res images that are too large for web or email Want tools that retain image detail and give output control Prefer no compression surprises (before/after comparison helps) High-quality output and format control make ImgSmaller ideal.

  5. Social Media Managers Constantly resizing and optimizing images for Instagram, Facebook, LinkedIn, etc. Need fast tools that work from mobile or tablet Prefer cropping tools, aspect ratio options, and output in .jpg or .png ImgSmaller offers them speed, flexibility, and compatibility on the go.

What's the story behind your product?

ImgSmaller's answer

In todayโ€™s web, speed, privacy, and user experience matter more than ever.

As a developer and digital creator, I often found myself needing a quick, reliable way to compress images โ€” not just for websites and blogs, but also for social media, client projects, and app performance. But most online image compressors had the same frustrating problems:

โŒ Slow server uploads

โŒ Limited free usage

โŒ Login walls and paywalls

โŒ Privacy concerns โ€” files being stored or tracked

โŒ Lack of control over quality, file size, or dimensions

I wanted something better โ€” a tool I could trust, that just worked, instantly, and respected the user's time and privacy.

So I built ImgSmaller.

Built for Speed. Designed for Trust.

ImgSmaller is a free, privacy-first image compressor that works 100% in your browser. No uploads, no accounts, no nonsense. Just drag, drop, compress โ€” and download.

Itโ€™s lightweight, fast, and powerful โ€” with advanced features like:

๐ŸŽฏ Target file size

โœ‚๏ธ Crop before compressing

๐Ÿ“ Resize dimensions

๐Ÿ”„ Choose output format

๐Ÿ“‚ Unlimited bulk compression

All of this happens without ever uploading your image โ€” unless you choose the API or server mode for automation or special use cases.

The Mission

Our mission is simple:

Make image compression faster, safer, and smarter โ€” for everyone.

Whether you're a developer, blogger, photographer, or business owner โ€” ImgSmaller helps you keep your images sharp, your sites fast, and your data private.

Built by a Creator, for Creators

ImgSmaller was developed with care, precision, and a deep respect for user experience. Itโ€™s the tool I wish existed years ago โ€” and now, itโ€™s here to empower creators everywhere.

Join the ImgSmaller Journey

Thousands of images are compressed daily using ImgSmaller โ€” saving bandwidth, speeding up websites, and respecting user privacy in the process.

Try it once. Youโ€™ll never go back to traditional compressors.

Who are some of the biggest customers of your product?

ImgSmaller's answer

KansaPeetal.com โ€“ A premium ecommerce platform selling handcrafted brass, copper, and stainless steel products. ImgSmaller helps reduce product image sizes for lightning-fast page load.

GatewayOfFuture.com โ€“ A leading LMS and online education platform. Uses ImgSmaller to optimize course thumbnails, lecture banners, and digital materials.

RajlaxmiElectronics.com โ€“ An electronics ecommerce store using ImgSmaller to compress large product images while maintaining clarity and professional quality.

User comments

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Reviews

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Optimizilla Reviews

Top 5 Free PNG File Size Reducer for Windows 10
Optimizilla is another tool that can compress PNG files. It can do batch compression, allowing up to 20 images to be uploaded at a time. It can also show you the size of the image before and after compression. How to reduce the size of PNG image online? Let's follow the steps to experience it together.
15 Best Free Image Optimization Tools for Image Compression
Optimizilla manages to reproduce great quality in your images with lowest file size possible. You can compress your JPEG and PNG photos with this tool. Theres also a cool slider which shows you the before and after version so you can preview the quality of your image before continuing. This is great because you can figure out how low you want to go before there is any...

Social recommendations and mentions

Based on our record, Optimizilla seems to be more popular. It has been mentiond 1 time since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.

ImgSmaller mentions (0)

We have not tracked any mentions of ImgSmaller yet. Tracking of ImgSmaller recommendations started around Sep 2025.

Optimizilla mentions (1)

What are some alternatives?

When comparing ImgSmaller and Optimizilla, you can also consider the following products