Free Online Photo Editor
Open a photo, adjust the light and colors, try a filter, crop and straighten, then download it in full resolution. Everything happens in your browser.
- Free
- No sign-up
- Full resolution
- Nothing is uploaded
100% private — Everything is processed directly in your browser: your files, voice, and image are never sent to Chatzam's servers.
How to edit a photo online
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Open your photo
Drag it into the frame, pick it from your device or paste it with Ctrl+V. JPG, PNG, WebP and HEIC are supported.
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Adjust, filter, crop
Move the sliders, try a filter, choose a crop ratio and straighten the horizon. Hold "Before" to compare.
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Download
Choose JPG, PNG or WebP and the quality: the photo is rendered in full resolution, then downloaded.
Everything you need to improve a photo in seconds
10 adjustments
Exposure, brightness, contrast, saturation, temperature, tint, sharpness, blur, vignette and grain, with an instant preview.
11 filters
Vivid, warm, cool, faded, vintage, film, golden, dramatic, black and white, noir and sepia, with an intensity slider.
Crop and straighten
Free, 1:1, 4:5, 4:3, 3:2, 16:9 and 9:16 ratios, quarter-turn rotation, mirror flip and fine straightening up to 45°.
Before / after and undo
Compare with a long press or a sliding divider, undo and redo every step (Ctrl+Z), or go back to the original.
Where to start when editing a photo
Always start with the light, then the colors, and save effects for last. A photo that's too dark is best fixed first with exposure: a setting of +30 brightens the image by about half a stop, as if the camera had let in more light. Brightness mainly affects the midtones and better preserves very bright areas. Contrast then widens the gap between shadows and highlights: a few points are often enough, and beyond +40 the shadow detail starts to get crushed. Finish with saturation, in moderation, then sharpness if the image looks a little soft. Double-click a slider to reset it to zero.
Temperature and tint: fixing a color cast
A photo taken under light bulbs often looks orange, and one taken in the shade or on a cloudy day leans blue. The temperature slider compensates for this: move it left to cool down an image that's too yellow, right to warm up one that's too blue. Tint corrects the other axis, between green and magenta, which helps under some fluorescent lights that give skin a greenish tone. To judge, look at an area that should be neutral, like a white wall, a sheet of paper or a gray sky, and adjust until it no longer leans toward any color. You can also push it on purpose to create a mood, for example a warmer sunset.
Cropping for Instagram, stories or a screen
The right crop depends on where the photo will be seen. The square 1:1 format suits profile pictures. The vertical 4:5 takes up the most space in an Instagram feed. 9:16 fills a phone screen for a story or a wallpaper, and 16:9 matches TVs, computer screens and video thumbnails. 3:2 and 4:3 follow the proportions of camera sensors. The rule-of-thirds grid shown in the frame helps you place the subject on a strong point rather than in the center. If the horizon is tilted, the straighten slider levels it; the image is enlarged slightly so no empty corners appear.
Frequently Asked Questions
Are my photos uploaded to a server?
No. The photo is opened and edited right in your browser, on your device. It isn't uploaded or saved anywhere else, and you can even use the tool offline once the page has loaded.
Does the edited photo lose quality?
No: the preview uses a smaller copy to stay smooth, but the download is rendered from the original in full resolution. For JPG, 90% quality is a good balance; PNG is lossless but larger. On iPhone and iPad, the browser limits very large photos to about 16 million pixels.
Can I edit an iPhone HEIC photo?
Yes. HEIC photos open directly in Safari and are converted when opened in other browsers. The result downloads as JPG, PNG or WebP, formats that work everywhere.
How do I compare with the original photo?
Hold the "Before" button or long-press the photo to see the original, and release to go back to your edit. The "Compare" button shows a divider you drag to see both versions side by side.
Can I undo a change?
Yes, the arrows above the photo undo and redo every step, as do Ctrl+Z and Ctrl+Shift+Z. "Reset all" goes back to the original photo, and double-clicking a slider resets it to zero.