Five live sliders — brightness, contrast, saturation, warmth and sharpness — that preview instantly and never touch your pixels until export. All in your browser.
Add one or many — PNG, JPG & WebP. Or paste with ⌘/Ctrl + V
Load the photo into PixKit's Adjust panel and drag the Brightness slider up (it runs 50–150), then add a touch of Contrast so the lifted image doesn't look washed out. The preview updates live, the adjustments stay non-destructive and re-editable, and the photo never leaves your browser — export when it looks right.
Clean the Gemini sparkle, then finish the job — crop, resize, convert and adjust without uploading a single pixel.
Reverse-alpha math restores the true pixels under the Gemini logo — no blur, no AI guesswork.
Crop to any aspect ratio with draggable handles, then resize to exact pixels or quick scales.
Export to PNG, JPG or WebP with a quality slider and a live file-size estimate.
Every tool runs locally with undo/redo. Nothing is uploaded — it even works offline.
Adjustments preview live and stay editable — nothing is baked in until export.
Drag it in, paste with Ctrl/Cmd+V, or browse. The Adjust panel with its five sliders opens automatically on this page.
Drag Brightness up from its neutral 100 (range 50–150) until shadows open up. Follow with Contrast (50–150) to restore punch, Saturation (0–200) if colors went flat, and Warmth (−100 to +100) to fix a cold or orange cast. A little Sharpness (0–100) crisps the result.
Use the editor's Before/After toggle to sanity-check the change, tweak any slider again — they're non-destructive, so revisiting costs nothing — and hit Reset to start over. Export as PNG, JPG or WebP when it's right.
Restaurant photos, birthday candles, dim living rooms — lift Brightness, add back Contrast, and the shot becomes usable instead of murky.
When the sky is fine but the person is a silhouette, brightening plus a saturation nudge recovers a surprising amount of face and color.
Bright, punchy product shots sell. Brightness, contrast and a hint of sharpness make items look like they were shot in a lightbox.
The Warmth slider shifts the image along the blue–orange axis: warm up sterile office lighting, or cool down an orange indoor glow.
Faded prints usually need contrast and saturation more than brightness — both sliders reach well past neutral to bring color back.
Brightness, contrast and the rest — answered.
The dark-photo fix most people know — open an app, drag brightness, save, notice it's washed out, open it again, drag contrast, save again — quietly damages the image, because every save re-encodes it. PixKit's Adjust panel is non-destructive: your five slider values are stored as settings and applied to the preview live, but the underlying pixels stay pristine until the single moment you export. Tweak, sleep on it, tweak again — the quality cost is zero.
Brightness (50–150) lifts or lowers overall exposure; 100 is neutral. Contrast (50–150) spreads or compresses the distance between darks and lights — the essential companion to any brightness lift. Saturation (0–200) scales color intensity from full grayscale to double-strength; brightened photos often want a nudge above 100. Warmth (−100 to +100) shifts white balance between blue and orange, fixing casts from indoor bulbs or overcast skies. Sharpness (0–100) increases edge contrast so the brightened result reads crisp rather than hazy.
A reliable recipe for a dark photo: raise Brightness until the shadows show detail, then raise Contrast until the image stops looking milky. Check skin and sky — if colors thinned out, add Saturation; if the whole frame leans blue or orange, correct with Warmth. Finish with a small Sharpness amount (10–25 is usually plenty; more invites halos). The Before/After toggle keeps you honest, and Reset returns all five sliders to neutral instantly.
The adjustment math runs on your own machine — a dark photo of your family, your documents or your unreleased product never touches a server. And because Adjust is one panel of the whole PixKit editor, the same session can crop the shot, straighten the horizon, resize for social and export to the exact format and file size you need.
| PixKit | Typical online tools | |
|---|---|---|
| Where your image is processed | On your device — nothing is uploaded | Uploaded to the tool's servers |
| Price, accounts & limits | No sign-up or usage credits; browser safety limits apply | Free-tier caps, accounts, paywalls |
| Speed on large files | No upload or queue; speed depends on the device | Upload, wait in queue, download |
| Works offline | Yes — installs as a PWA | No connection, no tool |
| Changing your mind mid-edit | Non-destructive sliders — re-drag any of the five at any time; pixels aren't touched until export | Each pass re-encodes the image, quietly stacking compression damage |
| Preview speed | Live on-canvas preview as you drag, even on large photos | Upload, wait, download, squint, repeat |
| Control | Brightness, contrast, saturation, warmth and sharpness — independently adjustable | A single "enhance" button that decides for you |
One private editor, a tool for every job — all 100% local, no upload.