Top AI Bulk Image Upscalers for Fast and High-Quality Batch Processing

author - Brenda Peng
Brenda Peng  Updated on
author - Brenda Peng
Approved by Abby Poole  linkedin icon

For photographers, online sellers, or anyone sitting on a huge folder of images, upscaling images one by one can feel like a never-ending chore. It takes time, it’s repetitive, and the results aren’t always consistent when you’re doing everything manually.

That’s where bulk image upscalers step in. Instead of dragging files through the same process over and over, these tools let you load and process dozens—or even hundreds—of images at once. It’s faster, more consistent, and a lot less stressful.

In this article, we’ll look at three of the most reliable batch image upscalers right now: Aiarty Image Enhancer, ImageTools Hub, and Upscayl. Each has its own strengths, price point, and workflow, so you can pick the one that best fits your needs.

Upscale image Upscale image

Best 3 Bulk Image Upscalers

1. Aiarty Image Enhancer

  • Compatible platforms: Windows, macOS
  • Price: Free trial available; Standard License (Yearly) $75 (regular $85); Lifetime License (one-time payment with lifetime upgrades) $99 (regular $155)
  • Batch limit: No fixed cap
  • Upscale options: 1x, 2x, 4x, 8x, 1K, 2K, 4K, 8K, custom resolution. Supports up to 16K on Mac and 32K on Windows.

Aiarty Image Enhancer is built for people who need high-quality results without a complicated workflow. The app uses 5 AI models trained for different user needs—so you don’t need to tweak endless sliders. You just load your files, pick a model, select an upscale option, and let the software do the heavy lifting.

What makes Aiarty stand out is the mix of speed and flexibility. Unlike some web-based tools that restrict file sizes or daily quotas, Aiarty runs locally on your computer and can handle large batches in one go. The software doesn’t just upscale image; it also reduces noise, fixes blur, and sharpens fine details, which is especially handy for sellers reusing old product shots or photographers restoring older archives.

Pros
  • Handles large batches without file size restrictions
  • Multiple AI models tailored for different image types
  • Custom upscale factors and resolution supported
  • Upscales up to 32K (Windows) / 16K (Mac)
  • Enhances details while upscaling to avoid quality loss
  • Face restoration support
  • DPI adjustment available
Cons
  • Desktop-only (no mobile app or web version yet)
  • Processing speed depends on your hardware

How to bulk upscale images with Aiarty Image Enhancer

  1. Download and install Aiarty Image Enhancer on Windows or macOS.
  2. Open the app and choose an AI model: More-Detail GAN v3, AIGCsmooth v3, More-Detail GAN v2, Smooth Diff v2, or Real-Photo v3.
  3. Convert Image to High Resolution with Aiarty Image Enhancer
  4. Select the upscale factor (2x, 4x, 8x) or set a custom resolution.
  5. Convert Image to High Resolution with Aiarty Image Enhancer
  6. Drag in the images or entire folders you want to upscale. Aiarty Image Enhancer will start loading the model and begin inference.
  7. Convert Image to High Resolution with Aiarty Image Enhancer
  8. Once processing is done, preview the results. If needed, switch to another model to compare outcomes.
  9. AI bulk upscale images with Aiarty Image Enhancer
  10. Click Batch Export and let Aiarty Image Enhancer process everything in one go.

2. ImageTools Hub – Bulk Image Upscaler

  • Compatible platforms: Web-based (works directly in your browser)
  • Price: Starts from around $49/month depending on plan
  • Batch limit: No fixed cap for offline use; cloud version works on a credit system

Image Tools Hub – Bulk Image Upscaler is a browser-based solution built for users who want to process many images at once without installing desktop software. You can drag in dozens or hundreds of files, and the tool will upscale them together, saving a lot of repetitive work. It supports both offline processing on your device—ideal for privacy and flexibility—and cloud processing for speed and integration with automated workflows.

Pros
  • Works on any operating system (browser-based)
  • Offers offline mode for privacy or cloud mode for automation
  • Integrates with workflows via API and Zapier
  • Includes a wide range of editing tools beyond just image upscaling
Cons
  • Subscription-based, and credit usage needs monitoring
  • Cloud performance depends on your internet speed
  • Doesn’t allow customizing upscale factor or resolution

How to bulk upscale images

  1. Open the Bulk Image Upscaler page.
  2. Drag and drop your images into the tool.
  3. Upload images to Bulk Image Upscaler
  4. Choose on-device or cloud processing.
  5. Select processing mode
  6. Click on the Start Upscaling xxx Images button to begin upscaling.
  7. Bulk upscaling images
  8. Wait for the upscale to finish, then download everything in one batch.
  9. Download upscaled images

3. Upscayl

Compatible Platforms:

  • Desktop: Windows, macOS, Linux
  • Cloud: Web-based (accessible via browser on any device)

Pricing:

  • Free Trial: 10 credits included
  • Pro Plan: $24.99/month for 300 credits
  • Business Plan: Custom pricing for higher usage and additional features
  • Note: Unused credits roll over each month; canceling a plan results in loss of Upscayl history after 1 month .

Batch Limit:

  • Desktop Version: No fixed cap; processes as many images as your hardware allows
  • Cloud Version: Credit-based system; batch size depends on available credits

Upscale Resolution Support: Upscales images up to 256MP (Pro Plan) and 512MP (Business Plan)

Upscayl offers both a free, open-source desktop application and a cloud-based service, catering to a wide range of users. The desktop version is ideal for those preferring local processing without internet dependency, while the cloud version provides enhanced speed, accessibility, and additional features for professional use. Its flexibility and robust capabilities make it a strong contender in the AI image upscaling space.

Pros
  • Open-source and free to use
  • No fixed batch limits on desktop
  • Supports high-resolution upscaling
  • Offers both local and cloud processing options
  • User-friendly interface with customization options
Cons
  • Desktop version requires a compatible GPU for optimal performance
  • Cloud version operates on a credit system; batch size depends on available credits
  • Advanced features are limited to paid plans

How to use Upscayl for bulk image upscaling

  1. Obtain the desktop version from the official website or access the cloud version via your browser.
  2. Drag and drop your images into the application.
  3. Free bulk image upscaler - Upscayl
  4. Choose from available models based on your image type.
  5. Set desired upscale factor.
  6. Set output folder to save the upscaled images.
  7. Click the Upscayl button to initiate the upscaling process.

FAQs

1. What’s the best AI bulk image upscaler?

Aiarty Image Enhancer is one of the best AI batch image upscalers. It uses AI to enhance details, reduce noise, and upscale large batches efficiently, making it ideal for individuals, photographers, designers, online sellers, and more.

2. What’s the best free bulk image upscaler?

If you want to try a free option, Upscayl’s open-source desktop version is a solid choice. It allows local batch processing without cost and offers multiple AI models for different image types. Keep in mind that free plans may have limits on batch size or processing speed.

3. Can I bulk upscale images in Photoshop?

Photoshop isn’t designed for AI-powered batch upscaling. You can create actions to resize multiple images, but it won’t intelligently enhance details or fix blur like AI image upscalers. For large batches, AI tools are faster and produce better results.

4. Can I bulk upscale images in Canva?

Canva allows image resizing, but it doesn’t offer true AI-enhanced image upscaling for batches. You’d need to process each image individually or use their pro features for limited bulk resizing. For high-quality bulk upscaling, a dedicated AI tool is a better option.

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This post was written by Brenda Peng who is a seasoned editor at Digiarty Software who loves turning ordinary photos into extraordinary works of art. With AI assistance for brainstorming and drafting, the post is reviewed for accuracy by our expert Abby Poole for her expertise in this field.

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