Brighten Photo

Lighten dark or backlit photos with exposure, shadows and highlights, or one-click auto brightness. Full resolution, no upload, no sign-up.

Runs in your browser

Start with Auto brightness, then fine-tune exposure, shadows and highlights · the clipping warning shows when bright areas turn pure white.

Saved in this browser only — clearing site data or switching devices removes it. Use Export to keep a backup.

Open photos to start editing

Drop files here or click to browse
JPG · PNG · WebP · HEIC — drop several photos at once, or paste Files never leave your device.

Photos are processed on this device and never uploaded. Basic editing requires no login.

Example: a backlit portrait — Auto brightness lifts the face (Shadows +40) and keeps the bright sky.

Other photo pages: Color correction · Sharpen · All adjustments

Save as a preset

0/40

Manage presets

0/30

My presets

No presets of your own yet. Adjust a photo and press “Save current settings”.

Built-in

Built-in presets cannot be changed or deleted.

  • Brighten dark indoor Built-in Exposure +0.50 · Highlights −40 · Shadows +25 · Temperature −10 · +1 more
  • Rich sunset Built-in Contrast +10 · Highlights −30 · Temperature +20 · Tint +6 · +1 more
  • Soft portrait Built-in Brightness +8 · Contrast −12 · Highlights −15 · Shadows +12 · +3 more
  • Vivid landscape Built-in Contrast +15 · Highlights −25 · Shadows +10 · Vibrance +30 · +2 more
  • Black & white Built-in Contrast +15 · Highlights −10 · Shadows +10 · Saturation −100
  • Calm muted tone Built-in Brightness +5 · Contrast −15 · Highlights −10 · Shadows +10 · +2 more

Three ways to brighten a dark photo

Exposure, Shadows and Brightness all make a photo lighter, but each changes a different part of it.

  • Exposure multiplies all the light (+1 EV doubles it). Use it when the whole photo is underexposed.
  • Shadows lifts only the dark tones, by up to 1.25 EV. Use it for faces in shade and dark foregrounds.
  • Brightness raises the midtones with a curve and leaves black and white where they are. Use it for a gentle final touch.

Why the sky turns white — and how to stop it

Because exposure multiplies light, areas that were already bright hit the maximum value first and turn into flat white. The editor measures the share of pixels at 254–255 in any channel and warns you when it passes 1% of the photo and has grown by at least half a percentage point over the original.

When the warning appears, lower Highlights — at −100 bright tones are pulled down by up to 1.25 EV — or use less exposure together with more Shadows. Areas that were already pure white in the original stay white; no setting can bring back detail the camera never recorded.

Fixing a backlit photo

In a backlit photo the subject is dark against a bright sky or window. Raising exposure brightens the subject but blows out the background, so try Shadows +30 to +50 and Highlights −30 to −60 with little or no exposure change.

Auto brightness recognises this situation — the darkest 10% of the pixels are still dark while more than 15% of the pixels are very bright — and does exactly that: it lifts Shadows by 40, never lowers exposure, and pulls Highlights down when the sky is clipped.

Night and indoor photos: brightening brings out noise

Dark phone photos hide sensor noise in their shadows. Lifting them makes it visible as grain and coloured speckles, and above Shadows +50 the editor reminds you of this. This page does not remove noise.

Auto brightness treats a photo as a night scene when its median brightness is low but bright lights are present, and then raises exposure by at most +0.3 EV so street lights and signs do not wash out.

When a brightened photo looks washed out

Lifting dark tones reduces contrast, so a brightened photo can look grey. Add Contrast +10 to +20, or Vibrance +10 to +20 to bring colour back without pushing skin tones.

If the colours turned yellow or blue rather than pale, the colour of the light is the problem, not the exposure — correct it with Temperature, or use the photo colour correction page.

Brighten several photos at full resolution

Open a whole set at once: every photo keeps its own settings while you switch between them, and each is saved at its original pixel size up to the device limit (48 megapixels on computers). Nothing is uploaded, and there is no watermark.

To brighten many photos in one go, “Auto-correct each photo” (a beta for logged-in users) analyses every photo separately, so a dark photo gets more exposure and an already bright one gets little or none.

How to use

  1. Add the dark photos you want to fix.
  2. Press Auto brightness, then adjust Exposure, Shadows and Highlights to taste.
  3. Watch the clipping warning; lower Highlights if bright areas turn white.
  4. Compare with the original and press Download to save at full resolution.

FAQ

How do I brighten a photo without losing quality?

The pixel size stays the same, so the only loss comes from saving. Keep JPG quality at 92 or higher, or save as PNG if the file size does not matter.

Can I brighten just one part of the photo, like a face?

There is no brush here. Shadows brightens all the dark areas at once, which often has the same effect on a shaded face; for precise local edits you need a layer-based editor.

Can I brighten photos on my iPhone?

Yes, in Safari or any other browser. Photos up to 16.7 megapixels are saved at full size; larger iPhone photos are reduced to that size, and the result tells you.

Will brightening fix a blurry photo?

No. Brightening only changes tones. For slightly soft photos, try the Sharpness slider and check the result at 100%; motion blur and missed focus cannot be repaired.

Why does the brightened photo look different on my phone?

Screens differ in brightness and contrast, and phones often dim the display automatically. Check the photo with your screen at a normal brightness before deciding it is too dark or too bright.

Related tools

More Image tools: Image

Send feedback

Found a bug or have an idea? Tell us — it helps make the tools better.

Only needed if you would like a reply.

Page: /image/brighten-photo/