Image Editor Online
Adjust brightness, contrast, and saturation. Flip and rotate. Download instantly. 100% free and private.
Drop your image here
or click to browse files
Image Editor Features
Essential editing tools that work entirely in your browser.
Fine-tune your image with three essential adjustment sliders, each ranging from -100 to +100.
Mirror your image along either axis with a single click.
Rotate clockwise or counter-clockwise in 90-degree steps to fix portrait or landscape orientation.
Key Takeaways
- Editing runs entirely in your browser - your image is read locally with the FileReader API and drawn to an HTML5 Canvas, so nothing is uploaded to a server.
- You can adjust brightness, contrast, saturation, blur, sharpen, and opacity, apply Grayscale, Sepia, Invert, Warm, or Cool filters, flip and rotate in 90-degree steps, and crop with a rule-of-thirds guide.
- Export as PNG, JPEG, or WebP - PNG is lossless and keeps transparency, while JPEG and WebP are compressed and show a Quality slider, but JPEG flattens transparent areas against a solid background.
- If effects look harsh, use small slider steps since adjustments stack, or click Reset to return everything to defaults and rebuild the look gradually.
How to Edit an Image in Your Browser
Load your image
Drag a JPEG, PNG, WebP, GIF, or BMP file onto the upload area, or click to browse. The file is read locally with the FileReader API and drawn to an HTML5 Canvas on your device. Nothing is uploaded to a server.
Adjust, filter, and transform
Use the sliders for brightness, contrast, saturation, blur, sharpen, and opacity. Apply a color filter such as Grayscale, Sepia, Invert, Warm, or Cool. Flip horizontally or vertically and rotate in 90-degree steps. Switch to the Crop tool to drag a selection with a rule-of-thirds guide, then click Apply Crop.
Choose a format and download
Pick PNG, JPEG, or WebP in the Export section. For JPEG and WebP a Quality slider appears so you can balance file size against detail. Click Download to save the result as filename-edited with your chosen extension.
Export Format Options
This editor can save your edited canvas as PNG, JPEG, or WebP. PNG is lossless and ignores the Quality slider, while JPEG and WebP are compressed and let you trade quality for smaller files. Use the table below to pick the right output for your edit.
| Format | Compression | Quality slider | Transparency | Best for |
|---|---|---|---|---|
| PNG | Lossless | Not used | Yes | Crisp graphics, screenshots, edits with opacity below 100 |
| JPEG | Lossy | Active | No (flattened) | Photos where a smaller file matters |
| WebP | Lossy | Active | Yes | Web images needing small size plus transparency |
| Opacity adjustment | Per-pixel alpha | n/a | Preserved in PNG/WebP | Faded or semi-transparent overlays |
| Crop tool | Pixel-exact cut | n/a | Inherited from source | Reframing and trimming edges |
| Rotate / Flip | Geometry only | n/a | Inherited from source | Fixing orientation, mirroring |
Which Control Should You Use
Photo looks dull or flat
Nudge Contrast upward to widen the gap between dark and light areas, then add a little Saturation to make colors pop. Small steps work better than maxing out a single slider.
Image is soft or slightly out of focus
Use the Sharpen slider, which boosts each pixel away from its local luminance to accentuate edges. Keep it modest, since high values can introduce halos and noise.
Wrong orientation or mirrored subject
Use Rotate CW or Rotate CCW for 90-degree turns to fix portrait or landscape framing, and Flip H or Flip V to mirror the image along an axis.
Need a specific crop or mood
Switch to the Crop tool and drag a selection using the rule-of-thirds guide, then Apply Crop. For a quick mood change, apply a Grayscale, Sepia, Warm, or Cool filter.
Common Problems and Fixes
My transparency disappeared after download
JPEG cannot store an alpha channel, so transparent areas are flattened against a solid background. Choose PNG or WebP in the Export section to keep transparency and any Opacity reduction you applied.
The Quality slider is missing
The Quality slider only appears for lossy formats. Select JPEG or WebP and it will show; PNG is always lossless, so the slider stays hidden and has no effect.
Sharpen or contrast made the image look harsh
These effects stack on top of each other. Lower the slider values, or click Reset to return every adjustment to zero, opacity to 100, and clear all flips and rotations, then rebuild the look gradually.
I cannot draw a crop selection
Click the Crop tool first so the overlay becomes active, then drag across the image. A selection smaller than a few pixels is ignored, so drag a clearly sized box before clicking Apply Crop.
Free Browser-Based Image Editor
This image editor can use browser-side HTML5 Canvas processing for supported workflows. No software installation is required.
Frequently Asked Questions
What does brightness adjustment do?
Brightness adjustment scales the RGB values of every pixel up or down.
Positive values brighten the image and negative values darken it.
Set to 0 for no change from the original.
What does contrast adjustment do?
Contrast adjustment expands or compresses the range of pixel values around the midpoint.
Positive values increase the difference between dark and light areas.
Negative values make the image appear flat and gray.
What does saturation adjustment do?
Saturation controls the intensity of colors in the image.
Reducing saturation to -100 converts the image to grayscale.
Increasing saturation makes colors more vivid and intense.
Will editing reduce image quality?
Adjustments are applied to the original image data in memory for each change.
The final download is a lossless PNG, preserving pixel-level quality.
Multiple sequential edits do not compound quality loss as in lossy formats.
Works in Chrome, Firefox, Safari, Edge, Opera, and other modern browsers on Windows, macOS, Linux, Android, and iOS. No software installation or sign-up required. All conversions run directly in your browser, so your files never leave your device and are never uploaded to a server. Free to use with no account needed.
Sources and References
Format and tool details on this page are based on the official specifications and documentation below.
- Canvas API- MDN Web Docs
- PNG Specification (Third Edition)- W3C
- PNG image type- MDN Web Docs
- JPEG standard (ISO/IEC 10918)- JPEG Committee