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Enhance Picture

Free AI image quality enhancer

Enhance image quality free, right in your browser

Compression artifacts, noise and blur all destroy image quality without touching dimensions — so the fix should work the same way. This page runs Real-ESRGAN AI at 1× to clean up your image at its original size, plus instant auto corrections for exposure, contrast and colour. Free, no account, no watermark, and nothing is uploaded — the AI model runs on your own device.

Drop an image below, press Enhance with AI, and drag the split preview to see the quality difference.

  • Always free
  • No account
  • AI-powered
  • Same-size cleanup
  • No upload
  • 20 per batch

Drop a picture here — AI enhancement starts on its own

JPG, PNG or WebP — up to 20 pictures at once

How to enhance image quality online for free

Three steps, free, and the image never leaves your browser.

  1. Add the image that needs better quality

    Drag a JPG, PNG or WebP onto the drop zone, tap Choose pictures to browse your device, or press Ctrl+V (⌘V on a Mac) to paste from the clipboard — screenshots, chat downloads and old exports all work. Up to 20 images in one batch, no file-size limit.

  2. Run the quality enhancer

    Auto fix instantly corrects washed-out exposure, flat contrast, dull colour and soft edges. Enhance with AI runs Real-ESRGAN on your device to remove compression artifacts, noise and blur — preset to 1× here, so your image stays at its original dimensions with better quality. Switch to 2× or 4× if you also need more pixels.

  3. Compare and save

    Drag the split preview to compare the enhanced image against the original. Fine-tune brightness, contrast, colour or sharpness with the sliders if needed, then press Download enhanced — or Download all for the whole batch. Copy puts the result on your clipboard as a PNG.

Questions about the free image quality enhancer

How does this free image quality enhancer work?
It runs two engines in your browser. Auto fix applies instant tone, contrast, colour and sharpness corrections using the Canvas API. Enhance with AI loads the Real-ESRGAN super-resolution model (realesr-general-x4v3, BSD-licensed) onto your device through WebGPU or WebAssembly and uses it to reconstruct detail that compression, noise or blur destroyed — no server involved, no upload required.
Is the image enhancer really free?
Yes — no account, no watermark, no daily limit and no premium tier. The AI model runs on your own device, so there is no per-image server cost. Process one image or a hundred in the same session at the same quality.
Can it fix JPEG compression artifacts?
That is the AI engine's strongest case. Real-ESRGAN was trained on images degraded with real-world JPEG compression, so it removes blockiness and ringing and redraws the texture that compression flattened. An image forwarded through chat apps or saved at low quality typically comes back noticeably cleaner.
Will it change my image's dimensions?
Not by default. This page presets the AI pass to 1×, meaning you get cleaner quality at the exact same pixel dimensions. If you also want a larger image, switch to 2× or 4× — the same pass upscales while it enhances quality.
What image formats are supported?
JPG/JPEG, PNG and WebP. Each file downloads in the same format it came in, with PNG and WebP transparency preserved. The AI pass handles up to 4 megapixels on GPU-accelerated devices (0.7 MP on CPU-only) and outputs up to 40 megapixels when upscaling.
Can it improve a noisy or grainy image?
Yes. High-ISO sensor noise and grain are among the degradations the AI model was trained to reverse, so a low-light shot usually comes out smoother while keeping real edges intact. Very heavy noise can produce a slightly painterly look — the split preview shows exactly what changed.
Do my images get uploaded anywhere?
No. Decoding, enhancement and re-encoding all happen inside your browser tab. There is no upload endpoint — no image, filename or pixel ever leaves your device. The only network traffic is the one-time 4.9 MB AI model download on first use, cached afterward.
How is this different from the photo enhancer on the homepage?
Same two engines, different starting point. The homepage opens with a general-purpose 2× preset. This page presets the AI pass to 1× because the most common quality problem — artifacts, noise, softness — does not need more pixels, just cleaner ones. If you later decide you want upscaling too, the scale selector is one tap away.

What the AI does to your image

Low image quality comes from three main sources, and each is handled differently. Compression damage — the blocky, smeared look after a JPEG save at low quality or a pass through a chat app — is what the AI engine handles best. It was trained on images degraded with real-world JPEG compression and reconstructs the texture that encoding destroyed. Noise and grain from low-light or high-ISO shots go through the same network, which separates real edges from sensor noise more effectively than simple blur-based denoisers. Tone problems — flat contrast, dark exposure, muted colour — are measurement issues rather than detail issues, so the Auto fix stage corrects them instantly by stretching each colour channel to full range.

The 1× preset on this page is deliberate: most quality problems do not need more pixels. Upscaling a damaged image just produces a larger damaged image. Cleaning it up first is the step that actually matters. If you do need more pixels afterward — for print or a tight crop — switch to 2× or 4× on the same page, or start from the enhance picture resolution page, which is preset to 4× and shows the resulting dimensions. For general-purpose enhancement with the default 2× scale, the main picture enhancer covers everything in one place.

No upload, no quality lost in transit

Everything runs in your browser through the Canvas API and on-device AI — there is no server that receives your image, so nothing is re-compressed by an upload pipeline, stored, or inspected. The only download is the one-time 4.9 MB AI model on first use; after that the enhancer keeps working with the network switched off.