How do I brighten a dark photo online for free?

Upload your dark or underexposed photo to the brighten tool, click the Brighten button, and download the result. It is 100% free, requires no signup, and supports batch processing up to 30 images at once.

Can I brighten photos without losing quality?

Yes. The brighten tool adjusts exposure and brightness with adaptive processing so highlights and shadows are preserved, and the output keeps the original resolution and file quality.

Is it safe to upload my photos to brighten them?

Yes. Images are processed in a secure session, transferred over 256-bit SSL, and automatically deleted from the server after processing. Nothing is stored or shared.

Image Brightener – Fix Dark Photos Online

Brighten dark, underexposed photos in one click — batch support for JPG, PNG, WebP, AVIF, HEIC and more, with brightness and contrast adjusted cleanly, no signup required.

100% Free No Signup Batch up to 30 images

Drag & drop images here

or click anywhere to browse from your device
Supports JPG, PNG, WEBP, GIF, AVIF, HEIF/HEIC (Max 30MB)

Secure & Auto-delete after 1h

⚡ Server-side Processing

🚀 Unlimited Batch

Why Use Image Brightener – Fix Dark Photos Online? Key Benefits & Advantages

How to brighten a dark photo online free - ConvertFT

Smart Batch Processing

Brighten 50+ photos at once including HEIC and AVIF. Save time with our optimized parallel processing engine.

Privacy & Security First

Your photos are processed with high-level encryption and auto-deleted from our servers within 1 hour. No tracking, no storage.

Lossless Detail Enhancement

Our intelligent algorithm lightens dark areas while preserving details and minimizing noise, even for 4K high-res images.

What Users Say About Image Brightener – Fix Dark Photos Online

📱

Emily W.

⭐⭐⭐⭐⭐

Love the blur effect for privacy. Easy to use with great results. Exceeded expectations.

👨‍🎨

Robert B.

⭐⭐⭐⭐⭐

Used it to enhance my product photos. The brighten feature is excellent.

👩‍💼

Jennifer H.

⭐⭐⭐⭐⭐

Perfect for adding effects to photos. The sharpen Image Brightener - Fix Dark Photos Online Free works great!

How to Use Image Brightener – Fix Dark Photos Online?

Select Image

Select the image you want to brighten and upload it to the cloud. To batch brighten multiple photos, click Choose More Files to upload additional photos. The cloud will automatically adapt to and support common image formats, so you don't need to worry about compatibility.

Customize Settings

Clicking the Start Process button for a specific photo will only brighten that one image. To brighten all selected images, click the Start Process > button. If you want to readjust the brightness parameters, click the X button to reset this processing.

Download Brightened image

Once the cloud indicates that the brighten is complete, you can preview the results by clicking on the images. Click Download Image to download a single brightened photo, or click Download Images to download all batch brightened images.